ASUS P5P800-MX User Manual

P5P800-MX

Motherboard

E2005E2005

E2005

E2005E2005

Revised Edition V2Revised Edition V2

Revised Edition V2

Revised Edition V2Revised Edition V2
October 2005October 2005

October 2005

October 2005October 2005

Copyright © 2005 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form
or by any means, except documentation kept by the purchaser for backup purposes, without the
express written permission of ASUSTeK COMPUTER INC. (“ASUS”).

Product warranty or service will not be extended if: (1) the product is repaired, modified or
altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2)
the serial number of the product is defaced or missing.

ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE
LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
(INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE
OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR
ERROR IN THIS MANUAL OR PRODUCT.

SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED
FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME
WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS.
ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR
INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS
AND SOFTWARE DESCRIBED IN IT.

Products and corporate names appearing in this manual may or may not be registered
trademarks or copyrights of their respective companies, and are used only for identification or
explanation and to the owners’ benefit, without intent to infringe.

iiii

ii

iiii

Contents

Notices ................................................................................................ vi

Safety information ............................................................................. vii

About this guide ............................................................................... viii

How this guide is organized .................................................. viii

Where to find more information ............................................ viii

Conventions used in this guide ............................................... ix

Typography ......................................................................................... ix

P5P800-MX specifications summary .................................................... x

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.1 Welcome! .............................................................................. 1-2

1.2 Package contents ................................................................. 1-2

1.3 Special features .................................................................... 1-2

1.3.1 Product highlights ................................................... 1-2

1.3.2 Innovative ASUS features ....................................... 1-4

1.4 Before you proceed .............................................................. 1-5

1.5 Motherboard overview .......................................................... 1-6

1.5.1 Placement direction ................................................ 1-6

1.5.2 Screw holes ............................................................ 1-6

1.5.3 Motherboard layout ................................................ 1-7

1.6 Central Processing Unit (CPU) .............................................. 1-8

1.6.1 Installing the CPU .................................................... 1-8

1.6.2 Installing the CPU heatsink and fan ...................... 1-11

1.6.3 Uninstalling the CPU heatsink and fan .................. 1-13

1.7 System memory ................................................................. 1-15

1.7.1 Overview ............................................................... 1-15

1.7.2 DDR Qualified Vendors List ................................... 1-15

1.7.3 Installing a DIMM ...................................................1-17

1.7.4 Removing a DIMM ................................................. 1-17

1.8 Expansion slots ................................................................... 1-18

1.8.1 Installing an expansion card .................................. 1-18

1.8.2 Configuring an expansion card .............................. 1-18

1.8.3 Interrupt assignments .......................................... 1-19

1.8.4 PCI slots ................................................................ 1-20

1.9 Jumpers .............................................................................. 1-21

iiiiii

iii

iiiiii

Contents

1.10 Connectors .........................................................................1-23

1.10.1 Rear panel connectors .......................................... 1-23

1.10.2 Internal connectors ...............................................1-25

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.1 Managing and updating your BIOS ........................................ 2-2

2.1.1 Creating a bootable floppy disk .............................. 2-2

2.1.2 ASUS EZ Flash utility .............................................. 2-3

2.1.3 AFUDOS utility ........................................................ 2-4

2.1.4 ASUS CrashFree BIOS 2 utility ................................ 2-6

2.1.5 ASUS Update utility ................................................ 2-8

2.2 BIOS setup program ........................................................... 2-11

2.2.1 BIOS menu screen ................................................. 2-12

2.2.2 Menu bar ............................................................... 2-12

2.2.3 Navigation keys .................................................... 2-12

2.2.4 Menu items ...........................................................2-13

2.2.5 Sub-menu items ................................................... 2-13

2.2.6 Configuration fields .............................................. 2-13

2.2.7 Pop-up window ..................................................... 2-13

2.2.8 Scroll bar .............................................................. 2-13

2.2.9 General help .......................................................... 2-13

2.3 Main menu .......................................................................... 2-14

2.3.1 System Time ......................................................... 2-14

2.3.2 System Date ......................................................... 2-14

2.3.3 Legacy Diskette A, B ............................................ 2-14

2.3.4 Primary, Third and Fourth IDE Master/Slave ......... 2-15

2.3.5 IDE Configuration .................................................. 2-16

2.3.6 System Information ..............................................2-17

2.4 Advanced menu .................................................................. 2-18

2.4.1 Instant Music Configuration .................................. 2-18

2.4.2 CPU Configuration ................................................. 2-19

2.4.3 Chipset ................................................................. 2-20

2.4.4 Onboard Devices Configuration ............................ 2-22

2.4.5 PCI PnP ................................................................. 2-23

2.4.6 USB Configuration ................................................. 2-25

iviv

iv

iviv

Contents

2.5 Power menu ........................................................................ 2-27

2.5.1 Suspend Mode ...................................................... 2-27

2.5.2 Repost Video on S3 Resume ................................ 2-27

2.5.3 ACPI 2.0 Support .................................................. 2-27

2.5.4 ACPI APIC Support ................................................ 2-27

2.5.5 APM Configuration ................................................ 2-28

2.5.6 Hardware Monitor ................................................. 2-29

2.6 Boot menu .......................................................................... 2-31

2.6.1 Boot Device Priority .............................................. 2-31

2.6.2 Boot Settings Configuration .................................2-32

2.6.3 Security ................................................................ 2-33

2.7 Exit menu ........................................................................... 2-36

Chapter 3: Software supportChapter 3: Software support

Chapter 3: Software support

Chapter 3: Software supportChapter 3: Software support

3.1 Installing an operating system ............................................. 3-2

3.2 Support CD information ........................................................ 3-2

3.2.1 Running the support CD ......................................... 3-2

3.2.2 Drivers menu .......................................................... 3-3

3.2.3 Utilities menu .......................................................... 3-4

3.2.4 ASUS Contact information ...................................... 3-5

vv

v

vv

Notices

Federal Communications Commission StatementFederal Communications Commission Statement

Federal Communications Commission Statement

Federal Communications Commission StatementFederal Communications Commission Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:

•

This device may not cause harmful interference, and

•

This device must accept any interference received including interference
that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
manufacturer’s instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:

•

Reorient or relocate the receiving antenna.

•

Increase the separation between the equipment and receiver.

•

Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.

•

Consult the dealer or an experienced radio/TV technician for help.

The use of shielded cables for connection of the monitor to the graphics
card is required to assure compliance with FCC regulations. Changes or
modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate
this equipment.

Canadian Department of Communications StatementCanadian Department of Communications Statement

Canadian Department of Communications Statement

Canadian Department of Communications StatementCanadian Department of Communications Statement

This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.

This class B digital apparatus complies with CanadianThis class B digital apparatus complies with Canadian

This class B digital apparatus complies with Canadian

This class B digital apparatus complies with CanadianThis class B digital apparatus complies with Canadian
ICES-003.ICES-003.

ICES-003.

ICES-003.ICES-003.

vivi

vi

vivi

Safety information

Electrical safetyElectrical safety

Electrical safety

Electrical safetyElectrical safety

•

To prevent electrical shock hazard, disconnect the power cable from
the electrical outlet before relocating the system.

•

When adding or removing devices to or from the system, ensure that
the power cables for the devices are unplugged before the signal cables
are connected. If possible, disconnect all power cables from the existing
system before you add a device.

•

Before connecting or removing signal cables from the motherboard,
ensure that all power cables are unplugged.

•

Seek professional assistance before using an adapter or extension cord.
These devices could interrupt the grounding circuit.

•

Make sure that your power supply is set to the correct voltage in your
area. If you are not sure about the voltage of the electrical outlet you
are using, contact your local power company.

•

If the power supply is broken, do not try to fix it by yourself. Contact a
qualified service technician or your retailer.

Operation safetyOperation safety

Operation safety

Operation safetyOperation safety

•

Before installing the motherboard and adding devices on it, carefully read
all the manuals that came with the package.

•

Before using the product, make sure all cables are correctly connected
and the power cables are not damaged. If you detect any damage,
contact your dealer immediately.

•

To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.

•

Avoid dust, humidity, and temperature extremes. Do not place the
product in any area where it may become wet.

•

Place the product on a stable surface.

•

If you encounter technical problems with the product, contact a qualified
service technician or your retailer.

This symbol of the crossed out wheeled bin indicates that the product
(electrical and electronic equipment) should not be placed in municipal
waste.
Please check local regulations for disposal of electronic products.

viivii

vii

viivii

About this guide

This user guide contains the information you need when installing and
configuring the motherboard.

How this guide is organizedHow this guide is organized

How this guide is organized

How this guide is organizedHow this guide is organized

This manual contains the following parts:

••

Chapter 1: Product introductionChapter 1: Product introduction

•

Chapter 1: Product introduction

••

Chapter 1: Product introductionChapter 1: Product introduction
This chapter describes the features of the motherboard and the new

technology it supports. This chapter also lists the hardware setup
procedures that you have to perform when installing system
components. It includes description of the jumpers and connectors on
the motherboard.

••

Chapter 2: BIOS setupChapter 2: BIOS setup

•

Chapter 2: BIOS setup

••

Chapter 2: BIOS setupChapter 2: BIOS setup
This chapter tells how to change system settings through the BIOS

Setup menus. Detailed descriptions of the BIOS parameters are also
provided.

••

Chapter 3: Software supportChapter 3: Software support

•

Chapter 3: Software support

••

Chapter 3: Software supportChapter 3: Software support
This chapter describes the contents of the support CD that comes

with the motherboard package.

Where to find more informationWhere to find more information

Where to find more information

Where to find more informationWhere to find more information

Refer to the following sources for additional information and for product
and software updates.

1.1.

ASUS websitesASUS websites

1.

ASUS websites

1.1.

ASUS websitesASUS websites
The ASUS website provides updated information on ASUS hardware

and software products. Refer to the ASUS contact information.

2.2.

Optional documentationOptional documentation

2.

Optional documentation

2.2.

Optional documentationOptional documentation
Your product package may include optional documentation, such as

warranty flyers, that may have been added by your dealer. These
documents are not part of the standard package.

viiiviii

viii

viiiviii

Conventions used in this guideConventions used in this guide

Conventions used in this guide

Conventions used in this guideConventions used in this guide

To make sure that you perform certain tasks properly, take note of the
following symbols used throughout this manual.

DANGER/WARNING: DANGER/WARNING:

DANGER/WARNING: Information to prevent injury to yourself

DANGER/WARNING: DANGER/WARNING:

when trying to complete a task.

CAUTION:CAUTION:

CAUTION: Information to prevent damage to the components

CAUTION:CAUTION:
when trying to complete a task.

IMPORTANT: IMPORTANT:

IMPORTANT: Instructions that you MUST follow to complete a

IMPORTANT: IMPORTANT:
task.

NOTE: NOTE:

NOTE: Tips and additional information to help you complete a

NOTE: NOTE:
task.

Typography

Bold textBold text

Bold text Indicates a menu or an item to select

Bold textBold text

Italics

<Key> Keys enclosed in the less-than and greater-than sign means

<Key1+Key2+Key3> If you must press two or more keys simultaneously, the

Command Means that you must type the command exactly as shown,

Used to emphasize a word or a phrase

that you must press the enclosed key

Example: <Enter> means that you must press the Enter or
Return key

key names are linked with a plus sign (+)

Example: <Ctrl+Alt+D>

then supply the required item or value enclosed in
brackets

Example: At the DOS prompt, type the command line:

afudos /i[filename]
afudos /iP5P1001.ROM

ixix

ix

ixix

P5P800-MX specifications summary

CPUCPU

CPU

CPUCPU

ChipsetChipset

Chipset

ChipsetChipset

Front Side BusFront Side Bus

Front Side Bus

Front Side BusFront Side Bus

MemoryMemory

Memory

MemoryMemory

IntegratedIntegrated

Integrated

IntegratedIntegrated
GraphicsGraphics

Graphics

GraphicsGraphics

Expansion slotsExpansion slots

Expansion slots

Expansion slotsExpansion slots

StorageStorage

Storage

StorageStorage

AudioAudio

Audio

AudioAudio

LANLAN

LAN

LANLAN

USBUSB

USB

USBUSB

Special featuresSpecial features

Special features

Special featuresSpecial features

Rear panelRear panel

Rear panel

Rear panelRear panel

LGA775 socket for Intel® Pentium® 4/Celeron
Compatible with the Intel® PCG 04A and 04B processors
Supports Intel® Hyper-Threading Technology
Supports Intel Enhanced Memory 64 Technology
(EM64T)
Supports Enhanced Intel SpeedStep Technology (EIST)

Northbridge: Intel® 865GV
Southbridge: Intel® ICH5

800/533 MHz

Dual-channel memory architecture
4 x 184-pin DIMM sockets support up to 4GB of

unbufferred non-ECC 400/333/266 MHz DDR DIMMs

ASUS Hyper-Path Technology

Intel® 865GV chipset with integrated Intel® Extreme

Graphics 2 Technology

3 x PCI slots

2 x Ultra DMA 100/66/33
2 x Serial ATA

Realtek® ALC655 6-channel CODEC
S/PDIF out interface support

Realtek® RTL8100C 10/100 Mbps Ethernet controller

Supports up to 8 USB 2.0 ports

ASUS Q-Fan
ASUS Instant Music Lite
ASUS EZ Flash
ASUS CrashFree BIOS 2
ASUS MyLogo2™

1 x Parallel port
1 x LAN (RJ-45) port
4 x USB 2.0 ports
1 x Serial port (COM)
1 x VGA port
1 x PS/2 keyboard port
1 x PS/2 mouse port
Audio I/O ports

processor

(continued on the next page)

xx

x

xx

P5P800-MX specifications summary

BIOS featuresBIOS features

BIOS features

BIOS featuresBIOS features

Industry standardIndustry standard

Industry standard

Industry standardIndustry standard

ManageabilityManageability

Manageability

ManageabilityManageability

InternalInternal

Internal

InternalInternal
connectorsconnectors

connectors

connectorsconnectors

PowerPower

Power

PowerPower
RequirementRequirement

Requirement

RequirementRequirement

Form FactorForm Factor

Form Factor

Form FactorForm Factor

Support CDSupport CD

Support CD

Support CDSupport CD
contentscontents

contents

contentscontents

4 Mb Flash ROM, AMI BIOS, PnP, WfM2.0, DMI2.0,
SM BIOS 2.3, ASUS EZ Flash, CrashFree BIOS2, ASUS
MyLogo2

PCI 2.2, USB 2.0

WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, Chassis
Intrusion

2 x USB 2.0 connectors for 4 additional USB 2.0 ports
1 x CPU fan connector
1 x Chassis fan connector
1 x 20-pin ATX power connector
1 x 4-pin ATX 12 V power connector
1 x CD/AUX connector
1 x Front panel audio connector
1 x S/PDIF out connector
1 x Game/MIDI connector
1 x 10-pin Front panel connector
1 x 20-pin Panel connector

ATX power supply (with 20-pin and 4-pin 12 V plugs)

Micro-ATX form factor: 9.6 in x 9.6 in

Device drivers
ASUS PC Probe
ASUS Live Update utility
Anti-virus software (OEM version)

*Specifications are subject to change without notice.

xixi

xi

xixi

xiixii

xii

xiixii

This chapter describes the motherboard
features and the new technologies
it supports.

introduction

Product

1

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

1-11-1

1-1

1-11-1

1.1 Welcome!

®®

®

Thank you for buying an ASUSThank you for buying an ASUS

Thank you for buying an ASUS

Thank you for buying an ASUSThank you for buying an ASUS

The motherboard delivers a host of new features and latest technologies,
making it another standout in the long line of ASUS quality motherboards!

Before you start installing the motherboard, and hardware devices on it,
check the items in your package with the list below.

®®

P5P800-MX motherboard! P5P800-MX motherboard!

P5P800-MX motherboard!

P5P800-MX motherboard! P5P800-MX motherboard!

1.2 Package contents

Check your motherboard package for the following items.

MotherboardMotherboard

Motherboard ASUS P5P800-MX motherboard

MotherboardMotherboard

CablesCables

Cables 1 x Serial ATA signal cable

CablesCables

1 x Serial ATA power cable
1 x Ultra DMA 133 cable
1 x Floppy disk drive cable

AccessoriesAccessories

Accessories I/O shield

AccessoriesAccessories

Application CDsApplication CDs

Application CDs ASUS motherboard support CD

Application CDsApplication CDs

DocumentationDocumentation

Documentation User guide

DocumentationDocumentation

If any of the above items is damaged or missing, contact your retailer.

1.3 Special features

1.3.11.3.1

1.3.1

1.3.11.3.1

Latest processor technology Latest processor technology

Latest processor technology

Latest processor technology Latest processor technology

The motherboard comes with a 775-pin surface mount Land Grid Array
(LGA) socket designed for the Intel® Pentium® 4 processor in the 775-land
package. The motherboard supports the Intel® Pentium® 4 processor with
800 MHz Front Side Bus (FSB), 1 MB L2 cache, and core speed of up to

3.6 GHz. The motherboard also supports the Intel® Hyper-Threading
Technology and is fully compatible with Intel® 04B and 04A processors.
See page 1-8 for details.

1-21-2

1-2

1-21-2

Product highlightsProduct highlights

Product highlights

Product highlightsProduct highlights

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

®®

®

®®

IntelIntel

Extreme Graphics support Extreme Graphics support

Intel

Extreme Graphics support

IntelIntel

Extreme Graphics support Extreme Graphics support

The motherboard supports the Intel® Extreme Graphics technology through
the Intel® 865GV chipset that delivers powerful integrated 2D and 3D
graphics.

Dual-channel DDR400 memory support Dual-channel DDR400 memory support

Dual-channel DDR400 memory support

Dual-channel DDR400 memory support Dual-channel DDR400 memory support

Employing the Double Data Rate (DDR) memory technology, the
motherboard supports up to 4GB of system memory using DDR400/333/
266 DIMMs. The ultra-fast 400MHz memory bus delivers the required
bandwidth for the latest 3D graphics, multimedia, and Internet applications.

Serial ATA technology Serial ATA technology

Serial ATA technology

Serial ATA technology Serial ATA technology

The motherboard supports the Serial ATA technology through the Serial ATA
interfaces and the Intel® ICH5 chipset. The SATA specification allows for
thinner, more flexible cables with lower pin count, reduced voltage
requirement, and up to 150 MB/s data transfer rate. See page 1-26 for
details.

AI Audio AI Audio

AI Audio

AI Audio AI Audio

The motherboard comes with the Realtek® ALC655 audio CODEC that lets
you enjoy high-quality 6-channel audio without having to buy advanced
sound cards. It also features intelligent detection of plugged peripherals
into the audio ports and identifies any incompatible devices. See page 1-24
for details.

S/PDIF digital sound ready S/PDIF digital sound ready

S/PDIF digital sound ready

S/PDIF digital sound ready S/PDIF digital sound ready

The motherboard supports the S/PDIF Out function through the S/PDIF
interfaces at midboard. The S/PDIF technology turns your computer into a
high-end entertainment system with digital connectivity to powerful audio and
speaker systems. See page 1-27 for details.

10/100 Mbps LAN support 10/100 Mbps LAN support

10/100 Mbps LAN support

10/100 Mbps LAN support 10/100 Mbps LAN support

Easy connectivity to your network or broadband connection with the
onboard LAN port. Allows you to play online games without buying
expensive additional LAN cards. See pages 1-24.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

1-31-3

1-3

1-31-3

USB 2.0 technology USB 2.0 technology

USB 2.0 technology

USB 2.0 technology USB 2.0 technology

The motherboard implements the Universal Serial Bus (USB) 2.0
specification, dramatically increasing the connection speed from the
12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is
backward compatible with USB 1.1. See page 1-28 for details.

Temperature, fan, and voltage monitoringTemperature, fan, and voltage monitoring

Temperature, fan, and voltage monitoring

Temperature, fan, and voltage monitoringTemperature, fan, and voltage monitoring

The CPU temperature is monitored by the ASIC (integrated in the Winbond
Super I/O) to prevent overheating and damage. The system fan rotations
per minute (RPM) is monitored for timely xure detection. The ASIC monitors
the voltage levels to ensure stable supply of current for critical
components. See page 2-29 for details.

1.3.21.3.2

1.3.2

1.3.21.3.2

CrashFree BIOS 2 CrashFree BIOS 2

CrashFree BIOS 2

CrashFree BIOS 2 CrashFree BIOS 2

This feature allows you to restore the original BIOS data from the support CD
in case when the BIOS codes and data are corrupted. This protection
eliminates the need to buy a replacement ROM chip. See details on page 2-6.

ASUS MyLogo2™ ASUS MyLogo2™

ASUS MyLogo2™

ASUS MyLogo2™ ASUS MyLogo2™

This feature present in the motherboard allows you to personalize and add
style to your system with customizable boot logos. See page 2-32.

ASUS EZ Flash BIOS ASUS EZ Flash BIOS

ASUS EZ Flash BIOS

ASUS EZ Flash BIOS ASUS EZ Flash BIOS

With the ASUS EZ Flash, you can easily update the system BIOS even
before loading the operating system. No need to use a DOS-based utility or
boot from a floppy disk. See page 2-3 for details.

Instant Music Lite Instant Music Lite

Instant Music Lite

Instant Music Lite Instant Music Lite

This unique feature allows you to playback audio CDs even without booting
the system to Windows®. Just press the ASUS Instant Music special
function keys and enjoy the music! See details on pages 2-18.

Innovative ASUS featuresInnovative ASUS features

Innovative ASUS features

Innovative ASUS featuresInnovative ASUS features

1-41-4

1-4

1-41-4

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.4 Before you proceed

Take note of the following precautions before you install motherboard
components or change any motherboard settings.

• Unplug the power cord from the wall socket before touching any
component.

• Use a grounded wrist strap or touch a safely grounded object or to
a metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity

• Hold components by the edges to avoid touching the ICs on them.

• Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.

Before you install or remove any component, ensureBefore you install or remove any component, ensure

•

Before you install or remove any component, ensure

Before you install or remove any component, ensureBefore you install or remove any component, ensure
that the ATX power supply is switched off or thethat the ATX power supply is switched off or the

that the ATX power supply is switched off or the

that the ATX power supply is switched off or thethat the ATX power supply is switched off or the
power cord is detached from the power supply. power cord is detached from the power supply.

power cord is detached from the power supply. Xure to

power cord is detached from the power supply. power cord is detached from the power supply.
do so may cause severe damage to the motherboard, peripherals,
and/or components.

Onboard LEDOnboard LED

Onboard LED

Onboard LEDOnboard LED

The motherboard comes with a standby power LED that lights up to
indicate that the system is ON, in sleep mode, or in soft-off mode.
This is a reminder that you should shut down the system and unplug
the power cable before removing or plugging in any motherboard
component. The illustration below shows the location of the onboard
LED.

®

P5P800-MX Onboard LED

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

P5P800-MX

ON

Standby

Power

SB_PWR1

OFF

Powered

Off

1-51-5

1-5

1-51-5

1.5 Motherboard overview

Before you install the motherboard, study the configuration of your chassis
to ensure that the motherboard fits into it.

Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage
motherboard components.

1.5.11.5.1

1.5.1

1.5.11.5.1

Placement directionPlacement direction

Placement direction

Placement directionPlacement direction

When installing the motherboard, make sure that you place it into the
chassis in the correct orientation. The edge with external ports goes to the
rear part of the chassis as indicated in the image below.

1.5.21.5.2

1.5.2

1.5.21.5.2

Screw holesScrew holes

Screw holes

Screw holesScrew holes

Place eight (8) screws into the holes indicated by circles to secure the
motherboard to the chassis.

Do not overtighten the screws! Doing so can damage the motherboard.

Place this side towardsPlace this side towards

Place this side towards

Place this side towardsPlace this side towards
the rear of the chassisthe rear of the chassis

the rear of the chassis

the rear of the chassisthe rear of the chassis

P5P800-MX

®

1-61-6

1-6

1-61-6

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.5.31.5.3

1.5.3

1.5.31.5.3

PS/2KBMS
T: Mouse
B: Keyboard

COM1

VGA1

USB2.0_1.2

USB2.0

Top:

T: USB4

RJ-45

B: USB3

Top:Line In
Center:Line Out
Below:Mic In

Motherboard layoutMotherboard layout

Motherboard layout

Motherboard layoutMotherboard layout

24.5cm (9.6in)

KBPWR1

ATX12V1

PARALLEL PORT

USBPW12
USBPW34

LGA775

Intel
865GV
GMCH

CHA_FAN1

CPU_FAN1

DDR DIMM_A2 (64 bit,184-pin module)

DDR DIMM_A1 (64 bit,184-pin module)

DDR DIMM_B2 (64 bit,184-pin module)

DDR DIMM_B1 (64 bit,184-pin module)

P5P800-MX

I/O

Super

ATXPWR1

PRI_IDE1

SEC_IDE1

FLOPPY1

24.5cm (9.6in)

RTL8100C

CD1

AUX1

FP_AUDIO1

ALC655

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

SPDIF_OUT1

PCI1

PCI2

SB_PWR1

PCI3

SATA2

CHASSIS1

SATA1

GAME1

CR2032 3V
Lithium Cell

CMOS Power

CLRTC1

4M
BIOS
FWH

F_PANEL1

COM2

PANEL1

1-71-7

1-7

1-71-7

®

USB56

USBPW56

Intel

ICH5

USBPW78

USB78

1.6 Central Processing Unit (CPU)

The motherboard comes with a surface mount LGA775 socket designed for
the Intel® Pentium® 4 processor in the 775-land package.

•

Your boxed Intel® Pentium® 4 LGA775 processor package should
come with installation instructions for the CPU, fan and heatsink
assembly. If the instructions in this section do not match the CPU
documentation, follow the latter.

• Upon purchase of the motherboard, make sure that the PnP cap is
on the socket and the socket pins are not bent. Contact your
retailer immediately if the PnP cap is missing, or if you see any
damage to the PnP cap/socket pins/motherboard components.
ASUS will shoulder the cost of repair only if the damage is shipment/
transit-related.

• Keep the cap after installing the motherboard. ASUS will process
Return Merchandise Authorization (RMA) requests only if the
motherboard comes with the cap on the LGA775 socket.

•

The product warranty does not cover damage to the socket pins
resulting from incorrect CPU installation/removal, or misplacement/
loss/incorrect removal of the PnP cap.

1.6.11.6.1

1.6.1

1.6.11.6.1

Installing the CPUInstalling the CPU

Installing the CPU

Installing the CPUInstalling the CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

P5P800-MX

®

P5P800-MX CPU Socket 775

Before installing the CPU, make sure that the socket box is facing
towards you and the load lever is on your left.

1-81-8

1-8

1-81-8

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

2. Press the load lever with your thumb (A) and move it to the left (B)
until it is released from the retention tab.

PnP CapPnP Cap

PnP Cap

Retention tabRetention tab

Retention tab

Retention tabRetention tab

Load leverLoad lever

Load lever

Load leverLoad lever

A

PnP CapPnP Cap

B

To prevent damage to the socket pins, do not remove the PnP cap
unless you are installing a CPU.

3. Lift the load lever in the direction
of the arrow to a 135º angle.

4. Lift the load plate with your
thumb and forefinger to a 100º
angle (A), then push the PnP cap
from the load plate window to
remove (B).

Load plateLoad plate

Load plate

Load plateLoad plate

This side of the camThis side of the cam

This side of the cam

This side of the camThis side of the cam
box should face you.box should face you.

box should face you.

box should face you.box should face you.

B

A

5. Position the CPU over the
socket, making sure that
the gold triangle is on
the bottom-left corner of
the socket. The socket
alignment key should fit
into the CPU notch.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

Alignment keyAlignment key

Alignment key

Alignment keyAlignment key

Gold triangle markGold triangle mark

Gold triangle mark

Gold triangle markGold triangle mark

1-91-9

1-9

1-91-9

6. Close the load plate (A), then
push the load lever (B) until it
snaps into the retention tab.

The CPU fits in only one correct orientation. DO NOT force the CPU into
the socket to prevent bending the connectors on the socket and
damaging the CPU!

A

B

Notes on IntelNotes on Intel

Notes on Intel

Notes on IntelNotes on Intel

®

Hyper-Threading Technology Hyper-Threading Technology

Hyper-Threading Technology

Hyper-Threading Technology Hyper-Threading Technology

• This motherboard supports Intel® Pentium® 4 CPUs in the 775-land
package with Hyper-Threading Technology.

• Hyper-Threading Technology is supported under Windows® XP/2003
Server and Linux 1.7.x (kernel) and later versions only. Under Linux,
use the Hyper-Threading compiler to compile the code. If you are
using any other operating systems, disable the Hyper-Threading
Technology item in the BIOS to ensure system stability and
performance.

• Installing Windows® XP Service Pack 1 or later is recommended.

• Make sure to enable the Hyper-Threading Technology item in BIOS
before installing a supported operating system.

• For more information on Hyper-Threading Technology, visit
www.intel.com/info/hyperthreading.

To use the Hyper-Threading Technology on this motherboard:

®

1. Install an Intel

Pentium® 4 CPU in the 775-land package that supports

Hyper-Threading Technology.

2. Power up the system and enter the BIOS Setup (see Chapter 2: BIOS
setup). Under the Advanced Menu, make sure that the item
Hyper-Threading Technology is set to Enabled. The item appears only
if you installed a CPU that supports Hyper-Threading Technology.

3. Reboot the computer.

1-101-10

1-10

1-101-10

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.6.21.6.2

1.6.2

1.6.21.6.2

Installing the CPU heatsink and fanInstalling the CPU heatsink and fan

Installing the CPU heatsink and fan

Installing the CPU heatsink and fanInstalling the CPU heatsink and fan

The Intel® Pentium® 4 LGA775 processor requires a specially designed
heatsink and fan assembly to ensure optimum thermal condition and
performance.

•

When you buy a boxed Intel® Pentium® 4 processor, the package
includes the CPU fan and heatsink assembly. If you buy a CPU
separately, make sure that you use only Intel®-certified
multi-directional heatsink and fan.

•

Your Intel® Pentium® 4 LGA775 heatsink and fan assembly comes in
a push-pin design and requires no tool to install.

•

If you purchased a separate CPU heatsink and fan assembly, make
sure that you have properly applied Thermal Interface Material to the
CPU heatsink or CPU before you install the heatsink and fan
assembly.

Make sure that you have installed the motherboard to the chassis before
you install the CPU fan and heatsink assembly.

To install the CPU heatsink and fan:

1. Place the heatsink on top of the
installed CPU, making sure that
the four fasteners match the
holes on the motherboard.

Orient the heatsink and fan
assembly such that the CPU
fan cable is closest to the
CPU fan connector.

Make sure to orient each fastener with the narrow end of the groove
pointing outward. (The photo shows the groove shaded for emphasis.)

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

Narrow endNarrow end

Narrow end

Narrow endNarrow end
of the grooveof the groove

of the groove

of the grooveof the groove

Motherboard holeMotherboard hole

Motherboard hole

Motherboard holeMotherboard hole

FastenerFastener

Fastener

FastenerFastener

1-111-11

1-11

1-111-11

2. Push down two fasteners at
a time in a diagonal
sequence to secure the
heatsink and fan assembly in
place.

A

B

B

A

B

A

B

A

3. Connect the CPU fan cable to the connector on the motherboard
labeled CPU_FAN1.

CPU_FAN1

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

P5P800-MX

®

P5P800-MX CPU fan connector

Do not forget to connect the CPU fan connector! Hardware monitoring
errors can occur if you fail to plug this connector.

1-121-12

1-12

1-121-12

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.6.31.6.3

1.6.3

1.6.31.6.3

Uninstalling the CPU heatsink and fanUninstalling the CPU heatsink and fan

Uninstalling the CPU heatsink and fan

Uninstalling the CPU heatsink and fanUninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

1. Disconnect the CPU fan
cable from the connector on
the motherboard.

2. Rotate each fastener
counterclockwise.

3. Pull up two fasteners at a
time in a diagonal sequence
to disengage the heatsink
and fan assembly from the
motherboard.

A

B

B

A

B

A

B

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

A

1-131-13

1-13

1-131-13

4. Carefully remove the
heatsink and fan assembly
from the motherboard.

5. Rotate each fastener
clockwise to ensure correct
orientation when
reinstalling.

1-141-14

1-14

1-141-14

The narrow end of the
groove should point
outward after resetting.
(The photo shows the
groove shaded for
emphasis.)

Narrow end of the grooveNarrow end of the groove

Narrow end of the groove

Narrow end of the grooveNarrow end of the groove

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.7 System memory

1.7.11.7.1

1.7.1

1.7.11.7.1

OverviewOverview

Overview

OverviewOverview

The motherboard comes with four 184-pin Double Data Rate (DDR) Dual
Inline Memory Modules (DIMM) sockets.

The following figure illustrates the location of the sockets:

DIMM_B1

DIMM_B2

P5P800-MX

®

P5P800-MX 184-pin DDR DIMM sockets

1.7.21.7.2

1.7.2

1.7.21.7.2

DDR Qualified Vendors ListDDR Qualified Vendors List

DDR Qualified Vendors List

DDR Qualified Vendors ListDDR Qualified Vendors List

DIMM_A1

DIMM_A2

The following table lists the memory modules that have been tested and
qualified for use with this motherboard. Visit the ASUS website
(www.asus.com) for the latest DDR DIMM modules for this motherboard.

Table 1Table 1

Table 1

Table 1Table 1

Size Size

Size

Size Size

256MB Kingston KVR333X64C25/256 Kingston SS D3208DH1T-6 • - •
256MB Kingston KVR333X64C25/256 Hynix SS HY5DU56822BT-J • • •
512MB Kingston KVR333X64C25/512 Hynix DS HY5DU56822BT-J • • ­512MB Kingston KVR400X64C3A/512 Hynix DS HY5DU56822DT-D43 • • •
512MB Kingston KVR400X64C3A/512 Kingston DS D3208DH1T-5 • • •
256MB Kingston KVR400X64C3A/256 Hynix SS HY5DU56822BT-D43 • • •
256MB Infineon HYS64D32300GU-5-C Infineon SS HYB25D256800CE-5C • • •
512MB Infineon HYS64D64320GU-5-C Infineon DS HYB25D256800CE-5C • • •
256MB Infineon HYS64D32300GU-6-C Infineon SS HYB25D256800CE-5C • • •
512MB Infineon HYS64D64320GU-6-C Infineon DS HYB25D256800CE-6C • • •
256MB HY DDR400-256 Hynix SS HY5DU56822BT-D43 • • ­512MB HY DDR400-512 Hynix DS HY5DU56822BT-D43 • • ­256MB HY DDR333-256 Hynix SS HY5DU56822BT-J • • ­512MB HY DDR333-512 Hynix DS HY5DU56822BT-J • - ­256MB Corsair VS256MB400 Value select SS VS32M8-5 2B0409 • • •
256MB Corsair VS256MB333 Samsung SS K4H5608380-TCB3 • • ­512MB Corsair VS512MB333 Value select DS VS32M8-6 2B0412 • • •

(continued on the next page)

DDR Qualified Vendors ListDDR Qualified Vendors List

DDR Qualified Vendors List

DDR Qualified Vendors ListDDR Qualified Vendors List

VendorVendor

Vendor

VendorVendor

Model Model

Model

Model Model

Brand Side(s) Component Brand Side(s) Component

Brand Side(s) Component

Brand Side(s) Component Brand Side(s) Component

DIMM support

AA

BB

CC

A

B

C

AA

BB

CC

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

1-151-15

1-15

1-151-15

Table 1Table 1

Table 1

Table 1Table 1

Size Size

Size

Size Size

512MB Micron MT16VDDT6464AG-335GB Micron DS MT46V32M8TG-6TG • - •
256MB Micron MT8VDDT3264AG-335GB Micron SS MT46V32M8-G • • •
256MB Micron MT8VDDT3264AG-40BGB Micron SS MT46V32M8TG-5B • • ­512MB Micron MT16VDDT6464AG-40BGB Micron DS MT46V32M8TG-5B • • •
256MB Samsung M368L3223FTN-CCC Samsung SS K4H560838F-TCCC • • •
512MB Samsung M368L6423FTN-CCC Samsung DS K4H560838F-TCCC • • •
256MB Samsung M368L3223FTN-CB3 Samsung SS K4H560838F-TCB3 • • •
512MB Samsung M368L6423FTN-CB3 Samsung DS K4H5608838F-TCB3 • • •
256MB Winbond U24256ADWBG6H20 Winbond SS W942508CH-5 • • ­256MB Winbond U24256AAWBG6H20 Winbond SS W942508CH-6 • • ­512MB Winbond DDR333-512 Winbond DS W942508BH-6 • • •
512MB Winbond U24512ADWBG6H20 Winbond DS W942508CH-5 • • ­256MB Elpida U24256ADEPG6H20 Elpida SS DD2508AKTA-5C • • ­512MB Elpida U24512AD1PG6H20 Elpida DS DD2508AMTA • • •
256MB Transcend DDR400-256 Samsung SS K4H560838F-TCCC • • •
256MB Transcend DDR400-256 Mosel SS V58C2256804SAT5B • • •
512MB Transcend DDR400-512 Mosel DS V58C2256804SAT5B • • •
256MB Pmi 3208GATA07-04A7 Pmi SS PM4D328D50406EU • • •
512MB Pmi 3208GATA01-04A4 Pmi DS PM4D328S50403DU • - ­256MB Kingmax MPMB62D-38LT3R Mosel SS V58C2256804SAT6 • - •
512MB Kingmax MPMC22D-38HT3R Hynix DS HY5DU56822BT-J • • •
512MB Kingmax MPXC22D-38KT3R Kingmax DS KDL388P4EA-50 • • ­256MB Mosel V826632K24SATG-D3 Mosel SS V58C2256804SAT5 • • •
512MB Mosel V826664K24SATG-D3 Mosel DS V58C2256804SAT5 • • •
256MB Nanya NT256D64S88B1G-5T Nanya SS NT5DS32M8BT-5T • • ­512MB Nanya NT512D64S8HB1G-5T Nanya DS NT5DS32M8BT-5T • • •
256MB Apacer 77.10628.10A Apacer SS AM3A5608AIT-6B • • •
512MB Apacer 77.90728.U1G Apacer DS AM3A568AJT-6B • • •
256MB Apacer 77.10636.46G Samsung SS K4H560838E-TCCC • • •
256MB Apacer 77.10636.56G Mosel SS V58C2256804SAT5B • • •
512MB Apacer 77.10736.11G Infineon DS HYB25D256800BT-5B • • ­256MB Smart U24256ADSRG6H20 Smart SS D32M8XS50H3X4AMV • • ­256MB Smart U24256ADSRG6H20 Smart SS D32M8XS60HBX4AMV • - ­512MB Smart U24512ADSRG6H20 Smart DS D32M8XS50H3X4AMV • • ­512MB Smart U24512ADSRG6H20 Smart DS D32M8XS60HBX4AMV • • ­256MB Twinmos M2S9109BFAPS9F0811A-T PSC SS A2S56D30ATP • • •
512MB Twinmos M2S9J18BGAPS9F0811A-T PSC DS A2S56D30ATP - - •
256MB A Data M368L3223ETM-CC5 Samsung SS K4H560838E-TCC5 • • •
512MB Promos V826662K24SCTG-D0 Promos DS

DDR Qualified Vendors ListDDR Qualified Vendors List

DDR Qualified Vendors List

DDR Qualified Vendors ListDDR Qualified Vendors List

VendorVendor

Vendor

VendorVendor

Model Model

Model

Model Model

Brand Side(s) Component Brand Side(s) Component

Brand Side(s) Component

Brand Side(s) Component Brand Side(s) Component

0415PRV58C2256804SCT5B

DIMM support

AA

BB

A

B

AA

BB

•••

CC

C

CC

Side(s): SS- Side(s): SS-

Side(s): SS- Single-side

Side(s): SS- Side(s): SS­DIMM support:DIMM support:

DIMM support:

DIMM support:DIMM support:
A A

A - supports one module inserted into either slot, in a Single-channel memory

A A

DS-DS-

D S -Double-sided

DS-DS-

configuration.

BB

B - supports one pair of modules inserted into into either blue or black slots as one

BB

pair of dual-channel memory configuration.

CC

C - supports two pairs of modules inserted into the blue and black slots as two

CC

pairs of dual-channel memory configuration.

1-161-16

1-16

1-161-16

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.7.31.7.3

1.7.3

1.7.31.7.3

Installing a DIMMInstalling a DIMM

Installing a DIMM

Installing a DIMMInstalling a DIMM

Make sure to unplug the power supply before adding or removing DIMMs
or other system components. Failure to do so may cause severe damage
to both the motherboard and the components.

1. Unlock a DIMM socket by
pressing the retaining clips
outward.

2. Align a DIMM on the socket such
that the notch on the DIMM
matches the break on the
socket.

A DDR DIMM is keyed with a notch so that it fits in only one direction.
DO NOT force a DIMM into a socket to avoid damaging the DIMM.

3. Firmly insert the DIMM into the
socket until the retaining clips
snap back in place and the DIMM
is properly seated.

2

DDR DIMM notchDDR DIMM notch

DDR DIMM notch

DDR DIMM notchDDR DIMM notch

1

1

Unlocked retaining clipUnlocked retaining clip

Unlocked retaining clip

Unlocked retaining clipUnlocked retaining clip

Locked Retaining ClipLocked Retaining Clip

Locked Retaining Clip

Locked Retaining ClipLocked Retaining Clip

1.7.41.7.4

1.7.4

1.7.41.7.4

Removing a DIMMRemoving a DIMM

Removing a DIMM

Removing a DIMMRemoving a DIMM

Follow these steps to remove a DIMM.

1. Simultaneously press the
retaining clips outward to unlock
the DIMM.

Support the DIMM lightly with your fingers when pressing the retaining
clips. The DIMM might get damaged when it flips out with extra force.

2. Remove the DIMM from the socket.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2

1

1

DDR DIMM notchDDR DIMM notch

DDR DIMM notch

DDR DIMM notchDDR DIMM notch

1-171-17

1-17

1-171-17

1.8 Expansion slots

In the future, you may need to install expansion cards. The following
sub-sections describe the slots and the expansion cards that they support.

Make sure to unplug the power cord before adding or removing
expansion cards. Failure to do so may cause you physical injury and
damage motherboard components.

1.8.11.8.1

1.8.1

1.8.11.8.1

To install an expansion card:

1. Before installing the expansion card, read the documentation that

2. Remove the system unit cover (if your motherboard is already

3. Remove the bracket opposite the slot that you intend to use. Keep

4. Align the card connector with the slot and press firmly until the card is

5. Secure the card to the chassis with the screw you removed earlier.

6. Replace the system cover.

1.8.21.8.2

1.8.2

1.8.21.8.2

After installing the expansion card, configure it by adjusting the software
settings.

1. Turn on the system and change the necessary BIOS settings, if any.

2. Assign an IRQ to the card. Refer to the tables on the next page.

3. Install the software drivers for the expansion card.

Installing an expansion cardInstalling an expansion card

Installing an expansion card

Installing an expansion cardInstalling an expansion card

came with it and make the necessary hardware settings for the card.

installed in a chassis).

the screw for later use.

completely seated on the slot.

Configuring an expansion cardConfiguring an expansion card

Configuring an expansion card

Configuring an expansion cardConfiguring an expansion card

See Chapter 2 for information on BIOS setup.

1-181-18

1-18

1-181-18

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.8.31.8.3

1.8.3

1.8.31.8.3

Standard interrupt assignmentsStandard interrupt assignments

Standard interrupt assignments

Standard interrupt assignmentsStandard interrupt assignments

Interrupt assignmentsInterrupt assignments

Interrupt assignments

Interrupt assignmentsInterrupt assignments

IRQIRQ

IRQ

IRQIRQ

0 1 System Timer
1 2 Keyboard Controller
2 • Re-direct to IRQ#9
3 11 Communications Port (COM2)*
4 12 Communications Port (COM1)*
5 13 IRQ holder for PCI steering*
6 14 Floppy Disk Controller
7 15 Printer Port (LPT1)*
8 3 System CMOS/Real Time Clock
9 4 IRQ holder for PCI steering*
10 5 IRQ holder for PCI steering*
11 6 IRQ holder for PCI steering*
12 7 PS/2 Compatible Mouse Port*
13 8 Numeric Data Processor
14 9 Primary IDE Channel
15 10 Secondary IDE Channel

PriorityPriority

Priority

PriorityPriority

Standard FunctionStandard Function

Standard Function

Standard FunctionStandard Function

* These IRQs are usually available for ISA or PCI devices.

IRQ assignments for this motherboardIRQ assignments for this motherboard

IRQ assignments for this motherboard

IRQ assignments for this motherboardIRQ assignments for this motherboard

AA

BB

CC

DD

EE

FF

A

B

C

D

AA

BB

CC

PCI slot 1 — shared — — — — — —
PCI slot 2 — — — — — used — —
PCI slot 3 — — — — — — used —
Onboard USB controller 1 shared — — — — — — —
Onboard USB controller 2 — — — used — — — —
Onboard USB controller 3 — — used — — — — —
Onboard USB controller 4 shared — — — — — — —
Onboard USB 2.0 controller — — — — — — — shared
Onboard LAN — — — — — — — shared
Onboard audio — shared — — — — — —
Onboard VGA shared — — — — — — —

E

DD

EE

GG

F

G

FF

GG

HH

H

HH

When using PCI cards on shared slots, ensure that the drivers support
“Share IRQ” or that the cards do not need IRQ assignments. Otherwise,
conflicts will arise between the two PCI groups, making the system
unstable and the card inoperable.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

1-191-19

1-19

1-191-19

1.8.41.8.4

1.8.4

1.8.41.8.4

The PCI slots support cards such as a
LAN card, SCSI card, USB card, and
other cards that comply with PCI
specifications. The figure shows a
LAN card installed on a PCI slot.

PCI slotsPCI slots

PCI slots

PCI slotsPCI slots

1-201-20

1-20

1-201-20

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.9 Jumpers

1.1.

Clear RTC RAM (3-pin CLRTC1)Clear RTC RAM (3-pin CLRTC1)

1.

Clear RTC RAM (3-pin CLRTC1)

1.1.

Clear RTC RAM (3-pin CLRTC1)Clear RTC RAM (3-pin CLRTC1)
This jumper allows you to clear the Real Time Clock (RTC) RAM in

CMOS. You can clear the CMOS memory of date, time, and system
setup parameters by erasing the CMOS RTC RAM data. The onboard
button cell battery powers the RAM data in CMOS, which include
system setup information such as system passwords.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

2. Remove the onboard battery.

3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the
cap on pins 2-3 for about 5~10 seconds, then move the cap back to
pins 1-2.

4. Re-install the battery.

5. Plug the power cord and turn ON the computer.

6. Hold down the <Del> key during the boot process and enter BIOS
setup to re-enter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC
jumper default position. Removing the cap will cause system boot failure!

®

P5P800-MX Clear RTC RAM

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

P5P800-MX

CLRTC1

2312

Normal Clear CMOS

(Default)

1-211-21

1-21

1-211-21

2.2.

USB device wake-up (3-pin USBPW12, USBPW34,USB device wake-up (3-pin USBPW12, USBPW34,

2.

USB device wake-up (3-pin USBPW12, USBPW34,

2.2.

USB device wake-up (3-pin USBPW12, USBPW34,USB device wake-up (3-pin USBPW12, USBPW34,
USBPW56, USBPW78)USBPW56, USBPW78)

USBPW56, USBPW78)

USBPW56, USBPW78)USBPW56, USBPW78)

Set these jumpers to +5V to wake up the computer from S1 sleep
mode (CPU stopped, DRAM refreshed, system running in low power
mode) using the connected USB devices. Set to +5VSB to wake up
from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh,
power supply in reduced power mode).

The USBPWR12 and USBPWR34 jumpers are for the rear USB ports.
The USBPWR56 and USBPWR78 jumper is for the internal USB
connectors that you can connect to additional USB ports.

USBPW12
USBPW34

21

2

3

+5V

+5VSB

(Default)

USBPW56

P5P800-MX

R

21 3

+5V

(Default)

2

+5VSB

USBPW78

2

P5P800-MX USB device wake up

21

+5V

(Default)

3

+5VSB

• The USB device wake-up feature requires a power supply that can
provide 500mA on the +5VSB lead for each USB port; otherwise,
the system would not power up.

• The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.

1-221-22

1-22

1-221-22

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

3.3.

Keyboard power (3-pin KBPWR1)Keyboard power (3-pin KBPWR1)

3.

Keyboard power (3-pin KBPWR1)

3.3.

Keyboard power (3-pin KBPWR1)Keyboard power (3-pin KBPWR1)
This jumper allows you to enable or disable the keyboard wake-up

feature. Set this jumper to pins 2-3 (+5VSB) to wake up the
computer when you press a key on the keyboard (the default is the
Space Bar). This feature requires an ATX power supply that can supply
at least 1A on the +5VSB lead, and a corresponding setting in the
BIOS.

KBPWR1

2312

P5P800-MX

R

P5P800-MX Keyboard power setting

1.10 Connectors

1.10.11.10.1

1.10.1

1.10.11.10.1

11

Rear panel connectorsRear panel connectors

Rear panel connectors

Rear panel connectorsRear panel connectors

1

2 3

10 89

+5V +5VSB

(Default)

4
5
6

7

1.1.

PS/2 mouse port (green).PS/2 mouse port (green).

1.

PS/2 mouse port (green). This port is for a PS/2 mouse.

1.1.

PS/2 mouse port (green).PS/2 mouse port (green).

2.2.

Parallel port.Parallel port.

2.

Parallel port. This 25-pin port connects a parallel printer, a scanner,

2.2.

Parallel port.Parallel port.
or other devices.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

1-231-23

1-23

1-231-23

SPEED

LED

ACT/LINK

LED

LAN port

3.3.

LAN (RJ-45) port.LAN (RJ-45) port.

3.

LAN (RJ-45) port. This port allows Gigabit connection to a Local

3.3.

LAN (RJ-45) port.LAN (RJ-45) port.
Area Network (LAN) through a network hub. Refer to the table below
for the LAN port LED indications.

LAN port LED indicationsLAN port LED indications

LAN port LED indications

LAN port LED indicationsLAN port LED indications

ACT/LINK LED ACT/LINK LED

ACT/LINK LED

ACT/LINK LED ACT/LINK LED

StatusStatus

Status

StatusStatus
OFF No link OFF 10 Mbps connection
ORANGE Linked GREEN 100 Mbps connection
BLINKING Data activity

4.4.

Line In port (light blue).Line In port (light blue).

4.

Line In port (light blue). This port connects a tape, CD, DVD

4.4.

Line In port (light blue).Line In port (light blue).

DescriptionDescription

Description

DescriptionDescription

SPEED LED SPEED LED

SPEED LED

SPEED LED SPEED LED

StatusStatus

Status

StatusStatus

DescriptionDescription

Description

DescriptionDescription

player, or other audio sources. In 4-channel and 6-channel
configuration, the function of this port becomes Front Speaker Out.

5.5.

Line Out port (lime).Line Out port (lime).

5.

Line Out port (lime). This port connects a headphone or a

5.5.

Line Out port (lime).Line Out port (lime).
speaker. In 4-channel and 6-channel configuration, the function of this
port becomes Rear Speaker Out.

6.6.

Microphone port (pink). Microphone port (pink).

6.

Microphone port (pink). This port connects a microphone. In a

6.6.

Microphone port (pink). Microphone port (pink).
6-channel configuration, the function of this port becomes Center/
Subwoofer.

Refer to the audio configuration table for the function of the audio ports
in 2, 4, or 6-channel configuration.

Audio 2, 4, or 6-channel configurationAudio 2, 4, or 6-channel configuration

Audio 2, 4, or 6-channel configuration

Audio 2, 4, or 6-channel configurationAudio 2, 4, or 6-channel configuration

PortPort

Port

PortPort

Light Blue Line In Front Speaker Out Front Speaker Out
Lime Line Out Rear Speaker Out Rear Speaker Out
Pink Mic In Mic In Center/Subwoofer

HeadsetHeadset

Headset

HeadsetHeadset

2-channel2-channel

2-channel

2-channel2-channel

4-channel4-channel

4-channel

4-channel4-channel

6-channel6-channel

6-channel

6-channel6-channel

1-241-24

1-24

1-241-24

7.7.

USB 2.0 ports 3 and 4.USB 2.0 ports 3 and 4.

7.

USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus

7.7.

USB 2.0 ports 3 and 4.USB 2.0 ports 3 and 4.

(USB) ports are available for connecting USB 2.0 devices.

8.8.

USB 2.0 ports 1 and 2.USB 2.0 ports 1 and 2.

8.

USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus

8.8.

USB 2.0 ports 1 and 2.USB 2.0 ports 1 and 2.

(USB) ports are available for connecting USB 2.0 devices.

9.9.

VGA port.VGA port.

9.

VGA port. This 15-pin VGA port connects to a VGA monitor.

9.9.

VGA port.VGA port.

10.10.

Serial connector. Serial connector.

10.

Serial connector. This 9-pin COM1 port is for serial devices.

10.10.

Serial connector. Serial connector.

11.11.

PS/2 keyboard port (purple).PS/2 keyboard port (purple).

11.

PS/2 keyboard port (purple). This port is for a PS/2 keyboard.

11.11.

PS/2 keyboard port (purple).PS/2 keyboard port (purple).

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

1.10.21.10.2

1.10.2

1.10.21.10.2

1.1.

1.

1.1.

Internal connectorsInternal connectors

Internal connectors

Internal connectorsInternal connectors

Floppy disk drive connector (34-1 pin FLOPPY1)Floppy disk drive connector (34-1 pin FLOPPY1)

Floppy disk drive connector (34-1 pin FLOPPY1)

Floppy disk drive connector (34-1 pin FLOPPY1)Floppy disk drive connector (34-1 pin FLOPPY1)

This connector is for the provided floppy disk drive (FDD) signal cable.
Insert one end of the cable to this connector, then connect the other
end to the signal connector at the back of the floppy disk drive.

Pin 5 on the connector is removed to prevent incorrect cable connection
when using an FDD cable with a covered Pin 5.

FLOPPY1

NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.

P5P800-MX

®

P5P800-MX Floppy disk drive connector

2.2.

Primary IDE connector (40-1 pin PRI_IDE1, SEC_IDE1)Primary IDE connector (40-1 pin PRI_IDE1, SEC_IDE1)

2.

Primary IDE connector (40-1 pin PRI_IDE1, SEC_IDE1)

2.2.

Primary IDE connector (40-1 pin PRI_IDE1, SEC_IDE1)Primary IDE connector (40-1 pin PRI_IDE1, SEC_IDE1)

PIN 1

These connectors are for Ultra DMA 100/66 signal cables. The Ultra
DMA 100/66 signal cable has three connectors: a blue connector for
the primary IDE connector on the motherboard, a black connector for
an Ultra DMA 100/66 IDE slave device (optical drive/hard disk drive),
and a gray connector for an Ultra DMA 100/66 IDE master device (hard
disk drive). If you install two hard disk drives, you must configure the
second drive as a slave device by setting its jumper accordingly. Refer
to the hard disk documentation for the jumper settings.

• Pin 20 on the IDE connector is removed to match the covered hole
on the Ultra DMA cable connector. This prevents incorrect insertion
when you connect the IDE cable.

• Use the 80-conductor IDE cable for Ultra DMA 100/66 IDE devices.

®

P5P800-MX IDE connectors

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

P5P800-MX

SEC_IDE1

PRI_IDE1

PIN 1 PIN 1

NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.

1-251-25

1-25

1-251-25

3.3.

Serial ATA connectors (7-pin SATA1, SATA2)Serial ATA connectors (7-pin SATA1, SATA2)

3.

Serial ATA connectors (7-pin SATA1, SATA2)

3.3.

Serial ATA connectors (7-pin SATA1, SATA2)Serial ATA connectors (7-pin SATA1, SATA2)
These connectors are for the Serial ATA signal cables for Serial ATA

hard disk drives.

SATA2

GND

GND

GND

RSATA_TXP2

RSATA_TXN2

RSATA_RXP2

P5P800-MX

®

P5P800-MX SATA connectors

SATA1

GND

GND

RSATA_TXP1

RSATA_TXN1

RSATA_RXP1

RSATA_RXN2

GND

RSATA_RXN1

Install the Windows® 2000 Service Pack 4 or the Windows® XP Service
Pack1 or later before using Serial ATA.

4.4.

CPU and Chassis fan connectorsCPU and Chassis fan connectors

4.

CPU and Chassis fan connectors

4.4.

CPU and Chassis fan connectorsCPU and Chassis fan connectors
(4-pin CPU_FAN1, 3-pin CHA_FAN1)(4-pin CPU_FAN1, 3-pin CHA_FAN1)

(4-pin CPU_FAN1, 3-pin CHA_FAN1)

(4-pin CPU_FAN1, 3-pin CHA_FAN1)(4-pin CPU_FAN1, 3-pin CHA_FAN1)

The fan connectors support cooling fans of 350mA~740mA (8.88W
max.) or a total of 1A~2.22A (26.64W max.) at +12V. Connect the fan
cables to the fan connectors on the motherboard, making sure that the
black wire of each cable matches the ground pin of the connector.

1-261-26

1-26

1-261-26

Do not forget to connect the fan cables to the fan connectors.
Insufficient air flow inside the system may damage the motherboard
components. These are not jumpers! DO NOT place jumper caps on the
fan connectors.

CHA_FAN1

GND

Rotation

+12V

P5P800-MX

®

CPU_FAN1

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

P5P800-MX Fan connectors

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

5.5.

Digital Audio connector (4-1 pin SPDIF_OUT1)Digital Audio connector (4-1 pin SPDIF_OUT1)

5.

Digital Audio connector (4-1 pin SPDIF_OUT1)

5.5.

Digital Audio connector (4-1 pin SPDIF_OUT1)Digital Audio connector (4-1 pin SPDIF_OUT1)
This connector is for the S/PDIF audio module to allow digital sound

output. Connect one end of the S/PDIF audio cable to this connector
and the other end to the S/PDIF module.

SPDIF_OUT1

P5P800-MX

GND

+5V

®

SPDIFOUT

P5P800-MX Digital audio connector

The S/PDIF out module is purchased separately.

6.6.

ATX power connectors (20-pin ATXPWR1,4-pin ATX12V1)ATX power connectors (20-pin ATXPWR1,4-pin ATX12V1)

6.

ATX power connectors (20-pin ATXPWR1,4-pin ATX12V1)

6.6.

ATX power connectors (20-pin ATXPWR1,4-pin ATX12V1)ATX power connectors (20-pin ATXPWR1,4-pin ATX12V1)

These connectors are for an ATX power supply. The plugs from the
power supply are designed to fit these connectors in only one
orientation. Find the proper orientation and push down firmly until the
connectors completely fit.

•

Do not forget to connect the 4-pin ATX +12 V power plug;
otherwise, the system will not boot up.

• Use a PSU with a minimum power rating of 300 W on this
motherboard. Use of a PSU with a higher power output is
recommended when configuring a system with more
power-consuming devices. The system may become unstable or may
not boot up if the power is inadequate.

P5P800-MX

®

P5P800-MX ATX power connector

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

+12V DC GND

+12V DC GND

+3.3VDC

-12.0VDC
GND

PS_ON#

GND
GND
GND

-5.0VDC
+5.0VDC
+5.0VDC

ATXPWR1ATX12V1

+3.3VDC
+3.3VDC
GND
+5.0VDC
GND
+5.0VDC
GND
PWR_OK
+5VSB
+12.0VDC

1-271-27

1-27

1-271-27

7.7.

Front panel audio connector (10-1 pin FP_AUDIO1)Front panel audio connector (10-1 pin FP_AUDIO1)

7.

Front panel audio connector (10-1 pin FP_AUDIO1)

7.7.

Front panel audio connector (10-1 pin FP_AUDIO1)Front panel audio connector (10-1 pin FP_AUDIO1)

This connector is for a chassis-mounted front panel audio I/O module
that supports legacy AC ‘97 audio standard. Connect one end of the
front panel audio I/O module cable to this connector.

P5P800-MX

®

FP_AUDIO1

BLINE_OUT_L

BLINE_OUT_R

+5VA

AGND

Line out_L
NC
Line out_R
MICPWR
MIC2

P5P800-MX Front panel audio connector

8.8.

USB connectors (10-1 pin USB56, USB78)USB connectors (10-1 pin USB56, USB78)

8.

USB connectors (10-1 pin USB56, USB78)

8.8.

USB connectors (10-1 pin USB56, USB78)USB connectors (10-1 pin USB56, USB78)
These connectors are for USB 2.0 ports. Connect the optional

USB/GAME module cable to any of these connectors, then install the
module to a slot opening at the back of the system chassis. These
USB connectors comply with USB 2.0 specification that supports up to
480 Mbps connection speed.

P5P800-MX

®

USB56

P5P800-MX USB 2.0 connectors

NC

GND

USB_P5+

GND

USB_P6+

USB_P5-

USB+5V

1

USB+5V

USB_P6-

USB78

1

USB+5V

USB_P8-

USB_P8+

USB+5V

USB_P7-

USB_P7+

GND

GND

NC

1-281-28

1-28

1-281-28

Never connect a

1394 cable1394 cable

1394 cable to the USB connectors. Doing so will

1394 cable1394 cable

damage the motherboard!

The USB/GAME module is purchased separately.

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

9.9.

Internal audio connectors (4-pin CD1, AUX1)Internal audio connectors (4-pin CD1, AUX1)

9.

Internal audio connectors (4-pin CD1, AUX1)

9.9.

Internal audio connectors (4-pin CD1, AUX1)Internal audio connectors (4-pin CD1, AUX1)
These connectors allow you to receive stereo audio input from sound

sources such as a CD-ROM, TV tuner, MPEG card or modem.

Ground

Ground

Left Audio Channel

Right Audio Channel

P5P800-MX

®

CD1(Black)
AUX1(White)

Ground

Ground

P5P800-MX Internal audio connectors

Left Audio Channel

Right Audio Channel

10.10.

System Front panel connectors (10-pin F_PANEL1)System Front panel connectors (10-pin F_PANEL1)

10.

System Front panel connectors (10-pin F_PANEL1)

10.10.

System Front panel connectors (10-pin F_PANEL1)System Front panel connectors (10-pin F_PANEL1)
This connector supports several chassis-mounted functions.

PWRSW

PWRGround

IDE_LED-

IDE_LED+

RESETIDE LED

GNDReset

P5P800-MX

®

F_PANEL1

P5P800-MX System panel connector

Power/Soft-off button (2-pin PWRSW)Power/Soft-off button (2-pin PWRSW)

•

Power/Soft-off button (2-pin PWRSW)

Power/Soft-off button (2-pin PWRSW)Power/Soft-off button (2-pin PWRSW)
This connector is for the system power button. Pressing the power
button turns the system ON or puts the system in SLEEP or SOFT-OFF
mode depending on the BIOS settings. Pressing the power switch for
more than four seconds while the system is ON turns the system OFF.

Hard disk drive activity (2-pin IDE_LED)Hard disk drive activity (2-pin IDE_LED)

•

Hard disk drive activity (2-pin IDE_LED)

Hard disk drive activity (2-pin IDE_LED)Hard disk drive activity (2-pin IDE_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD
Activity LED cable to this connector. The IDE LED lights up or flashes
when data is read from or written to the HDD.

Reset button (2-pin RESET)Reset button (2-pin RESET)

•

Reset button (2-pin RESET)

Reset button (2-pin RESET)Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for
system reboot without turning off the system power.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

1-291-29

1-29

1-291-29

11.11.

System panel connector (20-1 pin PANEL)System panel connector (20-1 pin PANEL)

11.

System panel connector (20-1 pin PANEL)

11.11.

System panel connector (20-1 pin PANEL)System panel connector (20-1 pin PANEL)

This connector supports several chassis-mounted functions.

PLED

PLED+

PLED-

SPEAKER

Speaker

Ground

+5V

Ground

PANEL1

PWR

P5P800-MX

®

P5P800-MX System Panel connector

IDE_LED-

IDE_LED+

IDE_LED

SMI

*

Requires an ATX power supply.

Ground

ExtSMI#

Reset

Ground

RESET

PWRSW

Ground

The sytem panel connector is color-coded for easy connection. Refer to
the connector description below for details.

System power LED (2-pin PLED)System power LED (2-pin PLED)

•

System power LED (2-pin PLED)

System power LED (2-pin PLED)System power LED (2-pin PLED)
This 2-pin connector is for the system power LED. Connect the
chassis power LED cable to this connector. The system power LED
lights up when you turn on the system power, and blinks when the
system is in sleep mode.

System warning speaker (4-pin SPEAKER)System warning speaker (4-pin SPEAKER)

•

System warning speaker (4-pin SPEAKER)

System warning speaker (4-pin SPEAKER)System warning speaker (4-pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning
speaker. The speaker allows you to hear system beeps and warnings.

Hard disk drive activity (2-pin IDE_LED)Hard disk drive activity (2-pin IDE_LED)

•

Hard disk drive activity (2-pin IDE_LED)

Hard disk drive activity (2-pin IDE_LED)Hard disk drive activity (2-pin IDE_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD
Activity LED cable to this connector. The IDE LED lights up or flashes
when data is read from or written to the HDD.

System Management Interrupt Lead (2-pin SMI)System Management Interrupt Lead (2-pin SMI)

•

System Management Interrupt Lead (2-pin SMI)

System Management Interrupt Lead (2-pin SMI)System Management Interrupt Lead (2-pin SMI)
This 2-pin connector allows you to manually place the system into a
suspended mode, or “green” mode, where system activity is instantly
decreased to save power and to expand the life of certain system
components. Attach the chassis-mounted suspend switch to this
connector.

Power/Soft-off button (2-pin PWRSW)Power/Soft-off button (2-pin PWRSW)

•

Power/Soft-off button (2-pin PWRSW)

Power/Soft-off button (2-pin PWRSW)Power/Soft-off button (2-pin PWRSW)
This connector is for the system power button. Pressing the power
button turns the system ON or puts the system in SLEEP or SOFT-OFF
mode depending on the BIOS settings. Pressing the power switch for
more than four seconds while the system is ON turns the system OFF.

Reset button (2-pin RESET)Reset button (2-pin RESET)

•

Reset button (2-pin RESET)

Reset button (2-pin RESET)Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for
system reboot without turning off the system power.

1-301-30

1-30

1-301-30

Chapter 1: Product introductionChapter 1: Product introduction

Chapter 1: Product introduction

Chapter 1: Product introductionChapter 1: Product introduction

This chapter tells how to change
the system settings through the BIOS
Setup menus. Detailed descriptions
of the BIOS parameters are also
provided.

BIOS setup

2

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-12-1

2-1

2-12-1

2.1 Managing and updating your BIOS

The following utilities allow you to manage and update the motherboard
Basic Input/Output System (BIOS) setup.

ASUS AFUDOS ASUS AFUDOS

1.

ASUS AFUDOS (Updates the BIOS in DOS mode using a bootable

ASUS AFUDOS ASUS AFUDOS
floppy disk.)

ASUS EZ Flash ASUS EZ Flash

2.

ASUS EZ Flash (Updates the BIOS using a floppy disk during POST.)

ASUS EZ Flash ASUS EZ Flash

ASUS CrashFree BIOS 2 ASUS CrashFree BIOS 2

3.

ASUS CrashFree BIOS 2 (Updates the BIOS using a bootable

ASUS CrashFree BIOS 2 ASUS CrashFree BIOS 2
floppy disk or the motherboard support CD when the BIOS file fails or
gets corrupted.)

ASUS Update ASUS Update

4.

ASUS Update (Updates the BIOS in Windows

ASUS Update ASUS Update

Refer to the corresponding sections for details on these utilities.

Save a copy of the original motherboard BIOS file to a bootable floppy
disk in case you need to restore the BIOS in the future. Copy the original
motherboard BIOS using the ASUS Update or AFUDOS utilities.

®

environment.)

2.1.12.1.1

2.1.1

2.1.12.1.1

Creating a bootable floppy diskCreating a bootable floppy disk

Creating a bootable floppy disk

Creating a bootable floppy diskCreating a bootable floppy disk

1. Do either one of the following to create a bootable floppy disk.

DOS environment

a. Insert a 1.44MB floppy disk into the drive.
b. At the DOS prompt, type format A:/S

then press <Enter>.

Windows® XP environment

a. Insert a 1.44 MB floppy disk to the floppy disk drive.
b. Click

ComputerComputer

Computer.

ComputerComputer

Start Start

Start from the Windows

Start Start

®

desktop, then select

MyMy

My

MyMy

c. Select the 3 1/2 Floppy Drive icon.
d. Click

e. Select

File File

File from the menu, then select

File File

Floppy DiskFloppy Disk

Floppy Disk window appears.

Floppy DiskFloppy Disk

Create an MS-DOS startup disk Create an MS-DOS startup disk

Create an MS-DOS startup disk from the format

Create an MS-DOS startup disk Create an MS-DOS startup disk

options field, then click

StartStart

Start.

StartStart

FormatFormat

Format. A

FormatFormat

Format 3 1/2Format 3 1/2

Format 3 1/2

Format 3 1/2Format 3 1/2

Windows® 2000 environment

To create a set of boot disks for Windows® 2000:
a. Insert a formatted, high density 1.44 MB floppy disk into the drive.

®

b. Insert the Windows
c. Click

StartStart

Start, then select

StartStart

2000 CD to the optical drive.

RunRun

Run.

RunRun

2-22-2

2-2

2-22-2

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

d. From the Open field, type

D:\bootdisk\makeboot a:

assuming that D: is your optical drive.

e. Press <Enter>, then follow screen instructions to continue.

2. Copy the original or the latest motherboard BIOS file to the bootable
floppy disk.

2.1.22.1.2

2.1.2

2.1.22.1.2

ASUS EZ Flash utilityASUS EZ Flash utility

ASUS EZ Flash utility

ASUS EZ Flash utilityASUS EZ Flash utility

The ASUS EZ Flash feature allows you to update the BIOS without having to
go through the long process of booting from a floppy disk and using a
DOS-based utility. The EZ Flash utility is built-in the BIOS chip so it is
accessible by pressing <Alt> + <F2> during the Power-On Self Tests
(POST).

To update the BIOS using EZ Flash:

1. Visit the ASUS website (www.asus.com) to download the latest BIOS
file for the motherboard and rename the same to

P5P1001.ROMP5P1001.ROM

P5P1001.ROM.

P5P1001.ROMP5P1001.ROM

2. Save the BIOS file to a floppy disk, then restart the system.

3. Press <Alt> + <F2> during POST to display the following.

EZFlash starting BIOS update
Checking for floppy...

4. Insert the floppy disk that contains the BIOS file to the floppy disk
drive. When the correct BIOS file is found, EZ Flash performs the BIOS
update process and automatically reboots the system when done.

EZFlash starting BIOS update
Checking for floppy...
Floppy found!
Reading file “P5P1001.ROM”. Completed.

Start erasing.......|

Start programming...|
Flashed successfully. Rebooting.

• Do not shutdown or reset the system while updating the BIOS to
prevent system boot failure!

• A “Floppy not found!” error message appears if there is no floppy
disk in the drive. A “P5P1001.ROM not found!” error message
appears if the correct BIOS file is not found in the floppy disk. Make
sure that you rename the BIOS file to P5P1001.ROM.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-32-3

2-3

2-32-3

2.1.32.1.3

2.1.3

2.1.32.1.3

AFUDOS utilityAFUDOS utility

AFUDOS utility

AFUDOS utilityAFUDOS utility

The AFUDOS utility allows you to update the BIOS file in DOS environment
using a bootable floppy disk with the updated BIOS file. This utility also
allows you to copy the current BIOS file that you can use as backup when
the BIOS fails or gets corrupted during the updating process.

Copying the current BIOSCopying the current BIOS

Copying the current BIOS

Copying the current BIOSCopying the current BIOS

To copy the current BIOS file using the AFUDOS utility:

• Make sure that the floppy disk is not write-protected and has at
least 600 KB free space to save the file.

• The succeeding BIOS screens are for reference only. The actual BIOS
screen displays may not be exactly the same as shown.

1. Copy the AFUDOS utility (afudos.exe) from the motherboard support
CD to the bootable floppy disk you created earlier.

2. Boot the system in DOS mode, then at the prompt type:

afudos /o[filename]

where the [filename] is any user-assigned filename not more than
eight alphanumeric characters for the main filename and three
alphanumeric characters for the extension name.

A:\>afudos /oOLDBIOS1.ROM

Main filenameMain filename

Main filename

Main filenameMain filename

Extension nameExtension name

Extension name

Extension nameExtension name

3. Press <Enter>. The utility copies the current BIOS file to the floppy
disk.

A:\>afudos /oOLDBIOS1.ROM

AMI Firmware Update Utility - Version 1.10

Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

Reading flash ..... done

A:\>

The utility returns to the DOS prompt after copying the current BIOS
file.

2-42-4

2-4

2-42-4

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

Updating the BIOS fileUpdating the BIOS file

Updating the BIOS file

Updating the BIOS fileUpdating the BIOS file

To update the BIOS file using the AFUDOS utility:

1. Visit the ASUS website (www.asus.com) and download the latest BIOS
file for the motherboard. Save the BIOS file to a bootable floppy disk.

Write the BIOS filename on a piece of paper. You need to type the exact
BIOS filename at the DOS prompt.

2. Copy the AFUDOS utility (afudos.exe) from the motherboard support
CD to the bootable floppy disk you created earlier.

3. Boot the system in DOS mode, then at the prompt type:

afudos /i[filename]

where [filename] is the latest or the original BIOS file on the bootable
floppy disk.

A:\>afudos /iP5P1001.ROM

4. The utility verifies the file and starts updating the BIOS.

A:\>afudos /iP5P1001.ROM
AMI Firmware Update Utility - Version 1.10
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

Reading file ..... done

Erasing flash .... done

Writing flash .... 0x0008CC00 (9%)

Do not shut down or reset the system while updating the BIOS to
prevent system boot failure!

5. The utility returns to the DOS prompt after the BIOS update process is
completed. Reboot the system from the hard disk drive.

A:\>afudos /iP5P1001.ROM
AMI Firmware Update Utility - Version 1.10
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

Reading file ..... done

Erasing flash .... done

Writing flash .... 0x0008CC00 (9%)

Verifying flash .. done

A:\>

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-52-5

2-5

2-52-5

2.1.42.1.4

2.1.4

2.1.42.1.4

ASUS CrashFree BIOS 2 utilityASUS CrashFree BIOS 2 utility

ASUS CrashFree BIOS 2 utility

ASUS CrashFree BIOS 2 utilityASUS CrashFree BIOS 2 utility

The ASUS CrashFree BIOS 2 is an auto recovery tool that allows you to
restore the BIOS file when it fails or gets corrupted during the updating
process. You can update a corrupted BIOS file using the motherboard
support CD or the floppy disk that contains the updated BIOS file.

• Prepare the motherboard support CD or the floppy disk containing
the updated motherboard BIOS before using this utility.

• Make sure that you rename the original or updated BIOS file in the
floppy disk to

Recovering the BIOS from a floppy diskRecovering the BIOS from a floppy disk

Recovering the BIOS from a floppy disk

Recovering the BIOS from a floppy diskRecovering the BIOS from a floppy disk

P5P1001.ROMP5P1001.ROM

P5P1001.ROM.

P5P1001.ROMP5P1001.ROM

To recover the BIOS from a floppy disk:

1. Turn on the system.

2. Insert the floppy disk with the original or updated BIOS file to the
floppy disk drive.

3. The utility displays the following message and automatically checks
the floppy disk for the original or updated BIOS file.

Bad BIOS checksum. Starting BIOS recovery...

Checking for floppy...

When found, the utility reads the BIOS file and starts flashing the
corrupted BIOS file.

Bad BIOS checksum. Starting BIOS recovery...
Checking for floppy...
Floppy found!
Reading file “P5P1001.ROM”. Completed.
Start flashing...

DO NOT shut down or reset the system while updating the BIOS! Doing
so can cause system boot failure!

4. Restart the system after the utility completes the updating process.

2-62-6

2-6

2-62-6

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

Recovering the BIOS from the support CDRecovering the BIOS from the support CD

Recovering the BIOS from the support CD

Recovering the BIOS from the support CDRecovering the BIOS from the support CD

To recover the BIOS from the support CD:

1. Remove any floppy disk from the floppy disk drive, then turn on the
system.

2. Insert the support CD to the optical drive.

3. The utility displays the following message and automatically checks
the floppy disk for the original or updated BIOS file.

Bad BIOS checksum. Starting BIOS recovery...
Checking for floppy...

When no floppy disk is found, the utility automatically checks the
optical drive for the original or updated BIOS file. The utility then
updates the corrupted BIOS file.

Bad BIOS checksum. Starting BIOS recovery...
Checking for floppy...
Floppy not found!
Checking for CD-ROM...
CD-ROM found!
Reading file “P5P1001.ROM”. Completed.
Start flashing...

DO NOT shut down or reset the system while updating the BIOS! Doing
so can cause system boot failure!

4. Restart the system after the utility completes the updating process.

The recovered BIOS may not be the latest BIOS version for this
motherboard. Visit the ASUS website (www.asus.com) to download the
latest BIOS file.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-72-7

2-7

2-72-7

2.1.52.1.5

2.1.5

2.1.52.1.5

The ASUS Update is a utility that allows you to manage, save, and update
the motherboard BIOS in Windows® environment. The ASUS Update utility
allows you to:

This utility is available in the support CD that comes with the motherboard
package.

Installing ASUS UpdateInstalling ASUS Update

Installing ASUS Update

Installing ASUS UpdateInstalling ASUS Update

To install ASUS Update:

ASUS Update utilityASUS Update utility

ASUS Update utility

ASUS Update utilityASUS Update utility

• Save the current BIOS file

• Download the latest BIOS file from the Internet

• Update the BIOS from an updated BIOS file

• Update the BIOS directly from the Internet, and

• View the BIOS version information.

ASUS Update requires an Internet connection either through a network
or an Internet Service Provider (ISP).

1. Place the support CD in the optical drive. The

2. Click the
VX.XX.XXVX.XX.XX

VX.XX.XX. See page 3-4 for the

VX.XX.XXVX.XX.XX

3. The ASUS Update utility is copied to your system.

2-82-8

2-8

2-82-8

Utilities Utilities

Utilities tab, then click

Utilities Utilities

Quit all Windows® applications before you update the BIOS using this
utility.

Install ASUS UpdateInstall ASUS Update

Install ASUS Update

Install ASUS UpdateInstall ASUS Update

Utilities Utilities

Utilities screen menu.

Utilities Utilities

Drivers Drivers

Drivers menu appears.

Drivers Drivers

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

Updating the BIOS through the InternetUpdating the BIOS through the Internet

Updating the BIOS through the Internet

Updating the BIOS through the InternetUpdating the BIOS through the Internet

To update the BIOS through the Internet:

®

1. Launch the ASUS Update utility from the Windows
Start Start

Start >

Start Start

Programs Programs

Programs >

Programs Programs

ASUS ASUS

ASUS >

ASUS ASUS

ASUSUpdate ASUSUpdate

ASUSUpdate >

ASUSUpdate ASUSUpdate

desktop by clicking

ASUSUpdateASUSUpdate

ASUSUpdate. The

ASUSUpdateASUSUpdate

ASUS Update main window appears.

2. Select

Update BIOS fromUpdate BIOS from

Update BIOS from

Update BIOS fromUpdate BIOS from

the Internet the Internet

the Internet option from the

the Internet the Internet
drop-down menu, then click
NextNext

Next.

NextNext

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

3. Select the ASUS FTP site
nearest you to avoid network
traffic, or click

NextNext

Click

Next.

NextNext

Auto SelectAuto Select

Auto Select.

Auto SelectAuto Select

2-92-9

2-9

2-92-9

4. From the FTP site, select the
BIOS version that you wish to
download. Click Next.

5. Follow the screen instructions to
complete the update process.

The ASUS Update utility is
capable of updating itself
through the Internet. Always
update the utility to avail all
its features.

Updating the BIOS through a BIOS fileUpdating the BIOS through a BIOS file

Updating the BIOS through a BIOS file

Updating the BIOS through a BIOS fileUpdating the BIOS through a BIOS file

To update the BIOS through a BIOS file:

®

1. Launch the ASUS Update utility from the Windows
clicking

ASUSUpdateASUSUpdate

ASUSUpdate. The ASUS Update main window appears.

ASUSUpdateASUSUpdate

2. Select

file file

file option from the drop-down

file file

Start Start

Start >

Start Start

Update BIOS from aUpdate BIOS from a

Update BIOS from a

Update BIOS from aUpdate BIOS from a

menu, then click

Programs Programs

Programs >

Programs Programs

NextNext

Next.

NextNext

ASUS ASUS

ASUS >

ASUS ASUS

ASUSUpdate ASUSUpdate

ASUSUpdate >

ASUSUpdate ASUSUpdate

desktop by

3. Locate the BIOS file from the

Open Open

Open window, then click

Open Open

4. Follow the screen instructions to
complete the update process.

2-102-10

2-10

2-102-10

SaveSave

Save.

SaveSave

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.2 BIOS setup program

This motherboard supports a programmable firmware chip that you can
update using the provided utility described in section “2.1 Managing and
updating your BIOS.”

Use the BIOS Setup program when you are installing a motherboard,
reconfiguring your system, or prompted to “Run Setup”. This section
explains how to configure your system using this utility.

Even if you are not prompted to use the Setup program, you can change
the configuration of your computer in the future. For example, you can
enable the security password feature or change the power management
settings. This requires you to reconfigure your system using the BIOS
Setup program so that the computer can recognize these changes and
record them in the CMOS RAM of the firmware hub.

The firmware hub on the motherboard stores the Setup utility. When you
start up the computer, the system provides you with the opportunity to
run this program. Press <Del>
enter the Setup utility; otherwise, POST continues with its test routines.

If you wish to enter Setup after POST, restart the system by pressing
<Ctrl+Alt+Delete>, or by pressing the reset button on the system chassis.
You can also restart by turning the system off and then back on. Do this
last option only if the first two failed.

The Setup program is designed to make it as easy to use as possible. Being
a menu-driven program, it lets you scroll through the various sub-menus
and make your selections from the available options using the navigation
keys.

during the Power-On Self-Test (POST) to

• The default BIOS settings for this motherboard apply for most
conditions to ensure optimum performance. If the system becomes
unstable after changing any BIOS settings, load the default settings
to ensure system compatibility and stability. Select the
Default SettingsDefault Settings

Default Settings item under the Exit Menu. See section “2.7 Exit

Default SettingsDefault Settings
Menu.”

• The BIOS setup screens shown in this section are for reference
purposes only, and may not exactly match what you see on your
screen.

• Visit the ASUS website (www.asus.com) to download the latest BIOS
file for this motherboard and .

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

LoadLoad

Load

LoadLoad

2-112-11

2-11

2-112-11

2.2.12.2.1

2.2.1

2.2.12.2.1

BIOS menu screenBIOS menu screen

BIOS menu screen

BIOS menu screenBIOS menu screen

Menu itemsMenu items

Menu items

Menu itemsMenu items

System Time [11:51:19]
System Date [Thu 05/07/2004]
Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[ST320413A]
Primary IDE Slave : [Not Detected]
Third IDE Master :[Not Detected]
Third IDE Slave :[Not Detected]
Fourth IDE Master : [Not Detected]
Fourth IDE Slave :[Not Detected]
IDE Configuration

System Information

Sub-menu itemsSub-menu items

Sub-menu items

Sub-menu itemsSub-menu items

2.2.22.2.2

2.2.2

2.2.22.2.2

Menu barMenu bar

Menu bar

Menu barMenu bar

Menu barMenu bar

Menu bar

Menu barMenu bar

Configuration fieldsConfiguration fields

Configuration fields

Configuration fieldsConfiguration fields

General helpGeneral help

General help

General helpGeneral help

Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a field.

Use [] or [-] to
configure system time.

Navigation keysNavigation keys

Navigation keys

Navigation keysNavigation keys

The menu bar on top of the screen has the following main items:

MainMain

Main For changing the basic system configuration

MainMain
AdvancedAdvanced

Advanced For changing the advanced system settings

AdvancedAdvanced
PowerPower

Power For changing the advanced power management (APM)

PowerPower

configuration

BootBoot

Boot For changing the system boot configuration

BootBoot
ExitExit

Exit For selecting the exit options and loading default

ExitExit

settings

To select an item on the menu bar, press the right or left arrow key on the
keyboard until the desired item is highlighted.

2.2.32.2.3

2.2.3

2.2.32.2.3

Navigation keysNavigation keys

Navigation keys

Navigation keysNavigation keys

At the bottom right corner of a menu screen are the navigation keys for
that particular menu. Use the navigation keys to select items in the menu
and change the settings.

Some of the navigation keys differ from one screen to another.

2-122-12

2-12

2-122-12

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.2.42.2.4

2.2.4

2.2.42.2.4

Menu itemsMenu items

Menu items

Menu itemsMenu items

The highlighted item on the menu bar
displays the specific items for that menu.
For example, selecting

Main Main

Main shows the

Main Main

Main menu items.

The other items (Advanced, Power, Boot,

System Time [11:10:19]
System Date [Thu 03/27/2003]
Legacy Diskette A [1.44M, 3.5 in]
Language [English]

Primary IDE Master :[ST320413A]
Primary IDE Slave :[ASUS CD-S340]
Secondary IDE Master :[Not Detected]
Secondary IDE Slave :[Not Detected]
Third IDE Master :[Not Detected]
Fourth IDE Master :[Not Detected]
IDE Configuration

System Information

Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a field.

Use [+] or [-] to
configure system time.

Select Screen
Select Item
+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit

and Exit) on the menu bar have their
respective menu items.

2.2.52.2.5

2.2.5

2.2.52.2.5

Sub-menu itemsSub-menu items

Sub-menu items

Sub-menu itemsSub-menu items

Main menu itemsMain menu items

Main menu items

Main menu itemsMain menu items

A solid triangle before each item on any menu screen means that the item
has a sub-menu. To display the sub-menu, select the item and press
<Enter>.

2.2.62.2.6

2.2.6

2.2.62.2.6

Configuration fieldsConfiguration fields

Configuration fields

Configuration fieldsConfiguration fields

These fields show the values for the menu items. If an item is user­configurable, you can change the value of the field opposite the item. You
cannot select an item that is not user-configurable.

A configurable field is enclosed in brackets, and is highlighted when
selected. To change the value of a field, select it then press <Enter> to
display a list of options. Refer to “2.2.7 Pop-up window.”

2.2.72.2.7

2.2.7

2.2.72.2.7

Pop-up windowPop-up window

Pop-up window

Pop-up windowPop-up window

Select a menu item then press <Enter> to display a pop-up window with
the configuration options for that item.

2.2.82.2.8

2.2.8

2.2.82.2.8

A scroll bar appears on the right side of a
menu screen when there are items that
do not fit on the screen. Press the
Up/Down arrow keys or <Page Up> /

Scroll barScroll bar

Scroll bar

Scroll barScroll bar

Advanced Chipset settings

WARNING: Setting wrong values in the sections below
may cause system to malfunction.

Configure DRAM Timing by SPD [Enabled]
Memory Acceleration Mode [Auto]
DRAM Idle Timer [Auto]
DRAm Refresh Rate [Auto]

Graphic Adapter Priority [AGP/PCI]
Graphics Aperture Size [ 64 MB]
Spread Spectrum [Enabled]

ICH Delayed Transaction [Enabled]

MPS Revision [1.4]

<Page Down> keys to display the other
items on the screen.

Pop-up windowPop-up window

Pop-up window

Pop-up windowPop-up window

2.2.92.2.9

2.2.9

2.2.92.2.9

General helpGeneral help

General help

General helpGeneral help

At the top right corner of the menu
screen is a brief description of the selected item.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

Select Screen
Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit

Scroll barScroll bar

Scroll bar

Scroll barScroll bar

2-132-13

2-13

2-132-13

2.3 Main menu

When you enter the BIOS Setup program, the Main menu screen appears,
giving you an overview of the basic system information.

Refer to section “2.2.1 BIOS menu screen” for information on the menu
screen items and how to navigate through them.

System Time [11:51:19]
System Date [Thu 05/07/2004]
Legacy Diskette A [1.44M, 3.5 in]
Legacy Diskette B [1.44M, 3.5 in]

Primary IDE Master :[ST320413A]
Primary IDE Slave : [Not Detected]
Secondary IDE Master : [Not Detected]
Secondary IDE Slave : [Not Detected]
Third IDE Master :[Not Detected]
Fourth IDE Master : [Not Detected]
Fourth IDE Slave :[Not Detected]
IDE Configuration

System Information

2.3.12.3.1

2.3.1

2.3.12.3.1

System Time [xx:xx:xxxx]System Time [xx:xx:xxxx]

System Time [xx:xx:xxxx]

System Time [xx:xx:xxxx]System Time [xx:xx:xxxx]

Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a field.

Use [+] or [-] to
configure system time.

Allows you to set the system time.

2.3.22.3.2

2.3.2

2.3.22.3.2

System Date [Day xx/xx/xxxx]System Date [Day xx/xx/xxxx]

System Date [Day xx/xx/xxxx]

System Date [Day xx/xx/xxxx]System Date [Day xx/xx/xxxx]

Allows you to set the system date.

2.3.32.3.3

2.3.3

2.3.32.3.3

Legacy Diskette A, B [1.44M, 3.5 in.]Legacy Diskette A, B [1.44M, 3.5 in.]

Legacy Diskette A, B [1.44M, 3.5 in.]

Legacy Diskette A, B [1.44M, 3.5 in.]Legacy Diskette A, B [1.44M, 3.5 in.]

Sets the type of floppy drive installed. Configuration options: [Disabled]
[360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.]
[2.88M, 3.5 in.]

2-142-14

2-14

2-142-14

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.3.42.3.4

2.3.4

2.3.42.3.4

Primary, Secondary, Third and Fourth IDEPrimary, Secondary, Third and Fourth IDE

Primary, Secondary, Third and Fourth IDE

Primary, Secondary, Third and Fourth IDEPrimary, Secondary, Third and Fourth IDE
Master/SlaveMaster/Slave

Master/Slave

Master/SlaveMaster/Slave

While entering Setup, the BIOS automatically detects the presence of IDE
devices. There is a separate sub-menu for each IDE device. Select a device
item then press <Enter> to display the IDE device information.

Primary IDE Master

Device : Hard Disk
Vendor : ST320413A
Size : 20.0GB
LBA Mode : Supported
Block Mode : 16 Sectors
PIO Mode : Supported
Async DMA : MultiWord DMA-2
Ultra DMA : Ultra DMA-5
SMART Monitoring: Supported

Type [Auto]
LBA/Large Mode [Auto]
Block(Multi-sector Transfer) [Auto]
PIO Mode [Auto]
DMA Mode [Auto]
Smart Monitoring [Auto]
32Bit Data Transfer [Disabled]

The BIOS automatically detects the values opposite the dimmed items
(Device, Vendor, Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra
DMA, and SMART monitoring). These values are not user-configurable.
These items show N/A if no IDE device is installed in the system.

Type [Auto]Type [Auto]

Type [Auto]

Type [Auto]Type [Auto]

Selects the type of IDE drive. Setting to Auto allows automatic selection of
the appropriate IDE device type. Select CDROM if you are specifically
configuring a CD-ROM drive. Select ARMD (ATAPI Removable Media Device)
if your device is either a ZIP, LS-120, or MO drive. Configuration options:
[Not Installed] [Auto] [CDROM] [ARMD]

LBA/Large Mode [Auto]LBA/Large Mode [Auto]

LBA/Large Mode [Auto]

LBA/Large Mode [Auto]LBA/Large Mode [Auto]

Enables or disables the LBA mode. Setting to Auto enables the LBA mode if
the device supports this mode, and if the device was not previously
formatted with LBA mode disabled. Configuration options: [Disabled]
[Auto]

Block (Multi-sector Transfer) [Auto]Block (Multi-sector Transfer) [Auto]

Block (Multi-sector Transfer) [Auto]

Block (Multi-sector Transfer) [Auto]Block (Multi-sector Transfer) [Auto]

Enables or disables data multi-sectors transfers. When set to Auto, the
data transfer from and to the device occurs multiple sectors at a time if
the device supports multi-sector transfer feature. When set to [Disabled],
the data transfer from and to the device occurs one sector at a time.
Configuration options: [Disabled] [Auto]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-152-15

2-15

2-152-15

PIO Mode [Auto]PIO Mode [Auto]

PIO Mode [Auto]

PIO Mode [Auto]PIO Mode [Auto]

Selects the PIO mode.
Configuration options: [Auto] [0] [1] [2] [3] [4]

DMA Mode [Auto]DMA Mode [Auto]

DMA Mode [Auto]

DMA Mode [Auto]DMA Mode [Auto]

Selects the DMA mode. Configuration options: [Auto] [SWDMA0]
[SWDMA1] [SWDMA2] [MWDMA0] [MWDMA1] [MWDMA2] [UDMA0]
[UDMA1] [UDMA2] [UDMA3] [UDMA4] [UDMA5]

SMART Monitoring [Auto]SMART Monitoring [Auto]

SMART Monitoring [Auto]

SMART Monitoring [Auto]SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology.
Configuration options: [Auto] [Disabled] [Enabled]

32Bit Data Transfer [Disabled]32Bit Data Transfer [Disabled]

32Bit Data Transfer [Disabled]

32Bit Data Transfer [Disabled]32Bit Data Transfer [Disabled]

Enables or disables 32-bit data transfer.
Configuration options: [Disabled] [Enabled]

2.3.52.3.5

2.3.5

2.3.52.3.5

The items in this menu allow you to set or change the configurations for
the IDE devices installed in the system. Select an item then press <Enter>
if you wish to configure the item.

IDE Configuration

Onboard IDE Operate Mode [Enhanced Mode]

IDE Detect Time Out (Sec) [35]

Onboard IDE Operate Mode [Enhanced Mode]Onboard IDE Operate Mode [Enhanced Mode]

Onboard IDE Operate Mode [Enhanced Mode]

Onboard IDE Operate Mode [Enhanced Mode]Onboard IDE Operate Mode [Enhanced Mode]

Allows selection of the IDE operation mode depending on the operating
system (OS) that you installed. Set to Enhanced Mode if you are using
native OS, such as Windows® 2000/XP/2003 Server.
Configuration options: [Compatible Mode] [Enhanced Mode]

IDE ConfigurationIDE Configuration

IDE Configuration

IDE ConfigurationIDE Configuration

Enhanced Mode Support On [S-ATA]

Enhanced Mode Support On [S-ATA]

The default setting S-ATA allows you to use native OS on Serial ATA
and Parallel ATA ports. We recommend that you do not change the
default setting for better OS compatibility. In this setting, you may
use legacy OS on the Parallel ATA ports
Serial ATA device.

only ifonly if

only if you did not install any

only ifonly if

2-162-16

2-16

2-162-16

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

The P-ATA+S-ATA and P-ATA options are for advanced users only. If
you set to any of these options and encounter problems, revert to the
default setting

S-ATAS-ATA

S-ATA. Configuration options: [P-ATA+S-ATA]

S-ATAS-ATA

[S-ATA] [P-ATA]

IDE Port SettingsIDE Port Settings

The

IDE Port Settings item appears only when the

IDE Port SettingsIDE Port Settings

Operate ModeOperate Mode

Operate Mode item is set to Compatible Mode.

Operate ModeOperate Mode

IDE Port Settings [Primary P-ATA+S-ATA]IDE Port Settings [Primary P-ATA+S-ATA]

IDE Port Settings [Primary P-ATA+S-ATA]

IDE Port Settings [Primary P-ATA+S-ATA]IDE Port Settings [Primary P-ATA+S-ATA]

Onboard IDEOnboard IDE

Onboard IDE

Onboard IDEOnboard IDE

Allows you to select the IDE port to be used.
Configuration options: [Primary P-ATA+S-ATA] [Secondary P-ATA+S-ATA]
[P-ATA Ports Only]

IDE Detect Time Out [35]IDE Detect Time Out [35]

IDE Detect Time Out [35]

IDE Detect Time Out [35]IDE Detect Time Out [35]

Selects the time out value for detecting ATA/ATAPI devices.
Configuration options: [0] [5] [10] [15] [20] [25] [30] [35]

2.3.62.3.6

2.3.6

2.3.62.3.6

System InformationSystem Information

System Information

System InformationSystem Information

This menu gives you an overview of the general system specifications. The
BIOS automatically detects the items in this menu.

AMIBIOS

Version : 08.00.10

Build Date : 11/03/04

Processor

Type : Intel(R) Pentium(R) 4 CPU 3.40GHz

Speed : 3407MHz

Count : 1

System Memory

Size : 256MB

AMI BIOSAMI BIOS

AMI BIOS

AMI BIOSAMI BIOS

Displays the auto-detected BIOS information

ProcessorProcessor

Processor

ProcessorProcessor

Displays the auto-detected CPU specification

System MemorySystem Memory

System Memory

System MemorySystem Memory

Displays the auto-detected system memory

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-172-17

2-17

2-172-17

2.4 Advanced menu

The Advanced menu items allow you to change the settings for the CPU
and other system devices.

Take caution when changing the settings of the Advanced menu items.
Incorrect field values can cause the system to malfunction.

Instant Music Configuration
CPU Configuration
Chipset
Onboard Devices Configuration
PCI PnP
USB Configuration

2.4.12.4.1

2.4.1

2.4.12.4.1

Instant Music Option

Instant Music [Disabled]

Instant Music [Disabled]Instant Music [Disabled]

Instant Music [Disabled]

Instant Music [Disabled]Instant Music [Disabled]

Instant Music ConfigurationInstant Music Configuration

Instant Music Configuration

Instant Music ConfigurationInstant Music Configuration

Allows you to enable or disable the Instant Music feature in BIOS.
Configuration options: [Disabled] [Enabled]

When Instant Music is enabled, the PS/2 keyboard power up feature is
automatically disabled.

Instant Music CD-ROM Drive [IDE Secondary Master]Instant Music CD-ROM Drive [IDE Secondary Master]

Instant Music CD-ROM Drive [IDE Secondary Master]

Instant Music CD-ROM Drive [IDE Secondary Master]Instant Music CD-ROM Drive [IDE Secondary Master]

Allows you to select the CD-ROM drive that you wish to use for the Instant
Music CD playback. Configuration options: [IDE Primary Master]
[IDE Primary Slave] [IDE Secondary Master] [IDE Secondary Slave]

The above item appears only if you enabled the Instant Music item.

2-182-18

2-18

2-182-18

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.4.22.4.2

2.4.2

2.4.22.4.2

CPU ConfigurationCPU Configuration

CPU Configuration

CPU ConfigurationCPU Configuration

The items in this menu show the CPU-related information that the BIOS
automatically detects.

Configure Advanced CPU settings

Manufacturer: Intel
Brand String: Intel(R) Pentium(R) 4 CPU 3.40GHz
Frequency : 3407MHz
FSB Speed : 800MHz

Cache L1 : 16 KB
Cache L2 : 1024 KB
Cache L3 : 0 KB

Ratio Status: Unlocked
Ratio Actual Value : 17

CPU Lock Free [Auto]
VID CMOS Setting: [ 41]
Microcode Updation [Enabled]
Max CPUID Value Limit: [Disabled]
Enhanced C1 Control [Auto]
CPU Internal Thermal Control [Auto]

Hyper Threading Technology [Enabled]

CPU Ratio [Auto]CPU Ratio [Auto]

CPU Ratio [Auto]

CPU Ratio [Auto]CPU Ratio [Auto]

Unlock locked CPU
and let it run at
lower multiplier
setting.

Sets the ratio between the CPU core clock and the Front Side Bus
frequency. The default value of this item is auto-detected by the BIOS. Use
the plus (+) or minus (-) keys to adjust the values.

CPU Lock Free[Auto]CPU Lock Free[Auto]

CPU Lock Free[Auto]

CPU Lock Free[Auto]CPU Lock Free[Auto]

Allows you to enable, disable or set the CPU lock free feature. This item
appears only if you installed a CPU with the CPU Lock Free feature.
Configuration options: [Auto] [Disabled] [Enabled]

VID CMOS Setting [ 41]VID CMOS Setting [ 41]

VID CMOS Setting [ 41]

VID CMOS Setting [ 41]VID CMOS Setting [ 41]

Allows you to set the VID CMOS setting at which the processor is to run.
The default value of this item is auto-detected by BIOS. Use the <+> or
<-> keys to adjust the values.

Microcode Updation [Enabled]Microcode Updation [Enabled]

Microcode Updation [Enabled]

Microcode Updation [Enabled]Microcode Updation [Enabled]

Disables or enables the microcode updation function.
Configuration options: [Disabled] [Enabled]

Max CPUID Value Limit [Disabled]Max CPUID Value Limit [Disabled]

Max CPUID Value Limit [Disabled]

Max CPUID Value Limit [Disabled]Max CPUID Value Limit [Disabled]

Enable this item to boot legacy operating systems that cannot support
CPUs with extended CPUID functions.
Configuration options: [Disabled] [Enabled]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-192-19

2-19

2-192-19

Enhanced C1 Control [Auto]Enhanced C1 Control [Auto]

Enhanced C1 Control [Auto]

Enhanced C1 Control [Auto]Enhanced C1 Control [Auto]

When set to [Auto], the BIOS will automatically check the CPU’s capability
to enable the C1E support. In C1E mode, the CPU power consumption is
lower when idle. Configuration options: [Auto] [Disabled]

CPU Internal Thermal Control [Auto]CPU Internal Thermal Control [Auto]

CPU Internal Thermal Control [Auto]

CPU Internal Thermal Control [Auto]CPU Internal Thermal Control [Auto]

Disables or sets the CPU internal thermal control.
Configuration options: [Disabled] [Auto]

Intel(R) SpeedStep Technology [Auto]Intel(R) SpeedStep Technology [Auto]

Intel(R) SpeedStep Technology [Auto]

Intel(R) SpeedStep Technology [Auto]Intel(R) SpeedStep Technology [Auto]

Allows you to use the Enhanced Intel SpeedStep Technology. When set to
[Auto], you can adjust the system power settings in the operating to use
the EIST feature. Set this item to [Disabled] if you do not want to use the
EIST. Configuration options: [Auto] [Disabled]

Hyper-Threading Technology [Enabled]Hyper-Threading Technology [Enabled]

Hyper-Threading Technology [Enabled]

Hyper-Threading Technology [Enabled]Hyper-Threading Technology [Enabled]

Allows you to enable or disable the processor Hyper-Threading Technology.
Configuration options: [Disabled] [Enabled]

2.4.32.4.3

2.4.3

2.4.32.4.3

ChipsetChipset

Chipset

ChipsetChipset

The Chipset menu allows you to change the advanced chipset settings.
Select an item then press <Enter> to display the sub-menu.

Advanced Chipset Settings

WARNING: Setting wrong values in below sections

may cause the system to malfunction.

Configure DRAM Timing by SPD [Enabled]
Performance Acceleration Mode [Auto]
DRAM Idle Timer [Auto]
DRAM Refresh Rate [Auto]

Graphic Adapter Priority [Internal VGA]
Graphics Aperture Size [ 64MB]

MPS Revision [1.4]

Advanced Chipset SettingsAdvanced Chipset Settings

Advanced Chipset Settings

Advanced Chipset SettingsAdvanced Chipset Settings

Configure DRAM Timing by SPD [Enabled]Configure DRAM Timing by SPD [Enabled]

Configure DRAM Timing by SPD [Enabled]

Configure DRAM Timing by SPD [Enabled]Configure DRAM Timing by SPD [Enabled]

When this item is enabled, the DRAM timing parameters are set according
to the DRAM SPD (Serial Presence Detect). When disabled, you can
manually set the DRAM timing parameters through the DRAM sub-items.
The following sub-items appear when this item is Disabled.
Configuration options: [Disabled] [Enabled]

2-202-20

2-20

2-202-20

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

DRAM CAS# Latency [2.5 Clocks]

Controls the latency between the SDRAM read command and the time
the data actually becomes available.
Configuration options: [2.0 Clocks] [2.5 Clocks] [3.0 Clocks]

DRAM RAS# Precharge [4 Clocks]

Controls the idle clocks after issuing a precharge command to the DDR
SDRAM. Configuration options: [4 Clocks] [3 Clocks] [2 Clocks]

DRAM RAS# to CAS# Delay [4 Clocks]

Controls the latency between the DDR SDRAM active command and
the read/write command. Configuration options: [4 Clocks] [3 Clocks]
[2 Clocks]

DRAM RAS# Activate to Precharge [8 Clocks]

Sets the RAS Activate timing to Precharge timing.
Configuration options: [8 Clock] [7 Clocks] [6 Clocks] [5 Clocks]

DRAM Burst Length [8 Clocks]

Sets the DRAM Write Recover Time.
Configuration options: [4 Clocks] [8 Clocks]

Performance Acceleration Mode [Auto]Performance Acceleration Mode [Auto]

Performance Acceleration Mode [Auto]

Performance Acceleration Mode [Auto]Performance Acceleration Mode [Auto]

Enables or sets the memory acceleration mode feature. When Enabled, the
CPU to memory latency is minimized to boost performance.
Configuration options: [Enabled] [Auto]

Setting to Enabled may cause the system to become unstable! If this
happens, revert to the default setting Auto.

DRAM Idle Timer [Auto]DRAM Idle Timer [Auto]

DRAM Idle Timer [Auto]

DRAM Idle Timer [Auto]DRAM Idle Timer [Auto]

Sets the DRAM idle timer. Configuration options: [Infinite] [0T] [8t] [16T]
[64T] [Auto]

DRAM Refresh Rate [Auto]DRAM Refresh Rate [Auto]

DRAM Refresh Rate [Auto]

DRAM Refresh Rate [Auto]DRAM Refresh Rate [Auto]

Sets the DRAM refresh rate. Configuration options: [Auto] [15.6 uSec]
[7.8 uSec] [64 uSec] [64T]

Graphics Adapter Priority [Internal VGAI]Graphics Adapter Priority [Internal VGAI]

Graphics Adapter Priority [Internal VGAI]

Graphics Adapter Priority [Internal VGAI]Graphics Adapter Priority [Internal VGAI]

Allows you to select the graphics adapter to use as primary boot device.
Configuration options: [Internal VGA] [PCI/Int-VGA]

Graphics Aperture Size [ 64MB]Graphics Aperture Size [ 64MB]

Graphics Aperture Size [ 64MB]

Graphics Aperture Size [ 64MB]Graphics Aperture Size [ 64MB]

Allows you to set the size of mapped memory for the AGP graphic data.
Configuration options: [ 4MB] [ 8MB] [16MB] [32MB] [64MB] [128MB]
[256MB]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-212-21

2-21

2-212-21

MPS Revision [1.4]MPS Revision [1.4]

MPS Revision [1.4]

MPS Revision [1.4]MPS Revision [1.4]

Sets the MPS revision version. Configuration options: [1.1] [1.4]

2.4.42.4.4

2.4.4

2.4.42.4.4

Onboard AC’97 Audio [Auto]
Onboard LAN [Enabled]
Onboard LAN Boot ROM [Disabled]

Serial Port1 Address [3F8/IRQ4]
Serial Port2 Address [2F8/IRQ3]
Parallel Port Address [378]
Parallel Port Mode [ECP]

Parallel Port IRQ [IRQ7]
Onboard Game/MIDI Port [200/330]
MIDI IRQ Select [IRQ10]

Onboard AC’97 Audio [Auto]Onboard AC’97 Audio [Auto]

Onboard AC’97 Audio [Auto]

Onboard AC’97 Audio [Auto]Onboard AC’97 Audio [Auto]

Onboard Devices ConfigurationOnboard Devices Configuration

Onboard Devices Configuration

Onboard Devices ConfigurationOnboard Devices Configuration

ECP Mode DMA Channel [DMA3]

When set to Auto, the BIOS detects whether you are using any audio
device. If an audio device is detected, the onboard audio controller is
enable; if no audio device is detected, the controller is disabled.
Configuration options: [Auto] [Disabled]

OnBoard LAN [Enabled]OnBoard LAN [Enabled]

OnBoard LAN [Enabled]

OnBoard LAN [Enabled]OnBoard LAN [Enabled]

Allows you to enable or disable the onboard PCI Express Gigabit LAN
controller. Configuration options: [Disabled] [Enabled]

Onboard LAN Boot ROM [Disabled]

Allows you to enable or disable the boot ROM in the onboard LAN
controller. This item appears only when the Onboard LAN item is set
to Enabled. Configuration options: [Disabled] [Enabled]

Serial Port1 Address [3F8/IRQ4]Serial Port1 Address [3F8/IRQ4]

Serial Port1 Address [3F8/IRQ4]

Serial Port1 Address [3F8/IRQ4]Serial Port1 Address [3F8/IRQ4]

Allows you to select the Serial Port1 base address.
Configuration options: [Disabled] [3F8/IRQ4] [3E8/IRQ4] [2E8/IRQ3]

Serial Port2 Address [2F8/IRQ3]Serial Port2 Address [2F8/IRQ3]

Serial Port2 Address [2F8/IRQ3]

Serial Port2 Address [2F8/IRQ3]Serial Port2 Address [2F8/IRQ3]

Allows you to select the Serial Port2 base address.
Configuration options: [Disabled] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

Parallel Port Address [378]Parallel Port Address [378]

Parallel Port Address [378]

Parallel Port Address [378]Parallel Port Address [378]

Allows you to select the Parallel Port base addresses.
Configuration options: [Disabled] [378] [278] [3BC]

Parallel Port Mode [ECP]Parallel Port Mode [ECP]

Parallel Port Mode [ECP]

Parallel Port Mode [ECP]Parallel Port Mode [ECP]

Allows you to select the Parallel Port mode.
Configuration options: [Normal] [Bi-directional] [EPP] [ECP]

2-222-22

2-22

2-222-22

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

ECP Mode DMA Channel [DMA3]ECP Mode DMA Channel [DMA3]

ECP Mode DMA Channel [DMA3]

ECP Mode DMA Channel [DMA3]ECP Mode DMA Channel [DMA3]

Appears only when the Parallel Port Mode is set to [ECP]. This item
allows you to set the Parallel Port ECP DMA.
Configuration options: [DMA0] [DMA1] [DMA3]

EPP Version [1.9]EPP Version [1.9]

EPP Version [1.9]

EPP Version [1.9]EPP Version [1.9]

Allows selection of the Parallel Port EPP version. This item appears
only when the

Parallel Port ModeParallel Port Mode

Parallel Port Mode is set to

Parallel Port ModeParallel Port Mode

EPPEPP

EPP.

EPPEPP

Configuration options: [1.9] [1.7]

Parallel Port IRQ [IRQ7]

Configuration options: [IRQ5] [IRQ7]

Onboard Game/MIDI Port [200/330]Onboard Game/MIDI Port [200/330]

Onboard Game/MIDI Port [200/330]

Onboard Game/MIDI Port [200/330]Onboard Game/MIDI Port [200/330]

Allows you to select the Game Port address or to disable the port.
Configuration options: [Disabled] [200/300] [200/330] [208/300]
[208/330]

MIDI IRQ Select [IRQ10]

Allows you to set the MIDI port IRQ.
Configuration options: [IRQ5] [IRQ9] [IRQ10] [IRQ11]

2.4.52.4.5

2.4.5

2.4.52.4.5

PCI PnPPCI PnP

PCI PnP

PCI PnPPCI PnP

The PCI PnP menu items allow you to change the advanced settings for
PCI/PnP devices. The menu includes setting IRQ and DMA channel resources
for either PCI/PnP or legacy ISA devices, and setting the memory size block
for legacy ISA devices.

Take caution when changing the settings of the PCI PnP menu items.
Incorrect field values can cause the system to malfunction.

Advanced PCI/PnP Settings

WARNING: Setting wrong values in below sections

may cause system to malfunction.

Plug And Play O/S [No]
PCI Latency Timer [64]
Allocate IRQ to PCI VGA [Yes]
Palette Snooping [Disabled]
PCI IDE BusMaster [Enabled]

IRQ-3 assigned to [PCI Device]
IRQ-4 assigned to [PCI Device]
IRQ-5 assigned to [PCI Device]
IRQ-7 assigned to [PCI Device]
IRQ-9 assigned to [PCI Device]
IRQ-10 assigned to [PCI Device]
IRQ-11 assigned to [PCI Device]
IRQ-14 assigned to [PCI Device]
IRQ-15 assigned to [PCI Device]

PCI Slot-1/5 IRQ Preference [Auto]
PCI Slot-2 IRQ Preference [Auto]
PCI Slot-2 IRQ Preference [Auto]
PCI Slot-2 IRQ Preference [Auto]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-232-23

2-23

2-232-23

Plug and Play O/S [No]Plug and Play O/S [No]

Plug and Play O/S [No]

Plug and Play O/S [No]Plug and Play O/S [No]

When set to [No], BIOS configures all the devices in the system. When set
to [Yes] and if you install a Plug and Play operating system, the operating
system configures the Plug and Play devices not required for boot.
Configuration options: [No] [Yes]

PCI Latency Timer [64]PCI Latency Timer [64]

PCI Latency Timer [64]

PCI Latency Timer [64]PCI Latency Timer [64]

Allows you to select the value in units of PCI clocks for the PCI device
latency timer register. Configuration options: [32] [64] [96] [128] [160]
[192] [224] [248]

Allocate IRQ to PCI VGA [Yes]Allocate IRQ to PCI VGA [Yes]

Allocate IRQ to PCI VGA [Yes]

Allocate IRQ to PCI VGA [Yes]Allocate IRQ to PCI VGA [Yes]

When set to [Yes], BIOS assigns an IRQ to PCI VGA card if the card
requests for an IRQ. When set to [No], BIOS does not assign an IRQ to the
PCI VGA card even if requested. Configuration options: [No] [Yes]

Palette Snooping [Disabled]Palette Snooping [Disabled]

Palette Snooping [Disabled]

Palette Snooping [Disabled]Palette Snooping [Disabled]

When set to [Enabled], the palete snooping feature informs the PCI devices
that an ISA graphics device is installed in the system so that the latter can
function correctly. Configuration options: [Disabled] [Enabled]

PCI IDE BusMaster [Enabled]PCI IDE BusMaster [Enabled]

PCI IDE BusMaster [Enabled]

PCI IDE BusMaster [Enabled]PCI IDE BusMaster [Enabled]

Allows BIOS to use PCI bus mastering when reading/writing to IDE devices.
Configuration options: [Disabled] [Enabled]

IRQ-xx assigned to [PCI Device]IRQ-xx assigned to [PCI Device]

IRQ-xx assigned to [PCI Device]

IRQ-xx assigned to [PCI Device]IRQ-xx assigned to [PCI Device]

When set to [PCI Device], the specific IRQ is free for use of PCI/PnP
devices. When set to [Reserved], the IRQ is reserved for legacy ISA
devices. Configuration options: [PCI Device] [Reserved]

PCI Slot-xx IRQ Preference [Auto]PCI Slot-xx IRQ Preference [Auto]

PCI Slot-xx IRQ Preference [Auto]

PCI Slot-xx IRQ Preference [Auto]PCI Slot-xx IRQ Preference [Auto]

Sets the PCI slot IRQ preference. Configuration options: [Auto] [3] [4] [5]
[7] [9] [10] [11] [12] [13] [14] [15]

2-242-24

2-24

2-242-24

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.4.62.4.6

2.4.6

2.4.62.4.6

USB ConfigurationUSB Configuration

USB Configuration

USB ConfigurationUSB Configuration

The items in this menu allows you to change the USB-related features.
Select an item then press <Enter> to display the configuration options.

USB Configuration

Module Version - 2.23.2-5.3

USB Devices Enabled: None

USB Function [Enabled]
Legacy USB Support [Auto]
USB 2.0 Controller [Enabled]
USB 2.0 Controller Mode [HiSpeed]

USB Mass Storage Device Configuration

The Module Version and USB Devices Enabled items show the
auto-detected values. If no USB device is detected, the item shows
None.

USB Function [Enabled]USB Function [Enabled]

USB Function [Enabled]

USB Function [Enabled]USB Function [Enabled]

Allows you to enable or disable the USB function.
Configuration options: [Disabled] [Enabled]

Legacy USB Support [Auto]Legacy USB Support [Auto]

Legacy USB Support [Auto]

Legacy USB Support [Auto]Legacy USB Support [Auto]

Allows you to enable or disable support for USB devices on legacy
operating systems (OS). Setting to Auto allows the system to detect the
presence of USB devices at startup. If detected, the USB controller legacy
mode is enabled. If no USB device is detected, the legacy USB support is
disabled. Configuration options: [Disabled] [Enabled] [Auto]

USB 2.0 Controller [Enabled]USB 2.0 Controller [Enabled]

USB 2.0 Controller [Enabled]

USB 2.0 Controller [Enabled]USB 2.0 Controller [Enabled]

Allows you to enable or disable the USB 2.0 controller.
Configuration options: [Disabled] [Enabled]

USB 2.0 Controller Mode [HiSpeed]USB 2.0 Controller Mode [HiSpeed]

USB 2.0 Controller Mode [HiSpeed]

USB 2.0 Controller Mode [HiSpeed]USB 2.0 Controller Mode [HiSpeed]

Allows you to configure the USB 2.0 controller in HiSpeed (480 Mbps) or
Full Speed (12 Mbps). Configuration options: [HiSpeed] [Full Speed]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-252-25

2-25

2-252-25

USB Mass Storage Device ConfigurationUSB Mass Storage Device Configuration

USB Mass Storage Device Configuration

USB Mass Storage Device ConfigurationUSB Mass Storage Device Configuration

USB Mass Storage Device Configuration

USB Mass Storage Reset Delay [20 Sec]

No USB Mass Storage device detected

USB Mass Storage Reset Delay [20 Sec]

Allows you to select the number of seconds POST waits for the USB
mass storage device after the start unit command. The message “No
USB mass storage device detected” appears if none is installed in the
system. Configuration options: [10 Sec ] [20 Sec] [30 Sec] [40 Sec]

Emulation Type [N/A]

When set to Auto, USB devices less than 530MB will be emulated as
floppy drive, and the remaining drives as hard drives. Forced FDD
option can be used to force an HDD formatted drive to boot as FDD
(for example, ZIP drive).

The Device and Emulation Type items appear only when there are
installed USB devices.

2-262-26

2-26

2-262-26

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.5 Power menu

The Power menu items allow you to change the settings for the Advanced
Power Management (APM). Select an item then press <Enter> to display
the configuration options.

Suspend Mode [Auto]
Repost Video on S3 Resume [No]
ACPI 2.0 Support [No]
ACPI APIC Support [Enabled]

APM Configuration
Hardware Monitor

2.5.12.5.1

2.5.1

2.5.12.5.1

Allows you to select the Advanced Configuration and Power Interface
(ACPI) state to be used for system suspend.
Configuration options: [S1 (POS) Only] [S3 Only] [Auto]

2.5.22.5.2

2.5.2

2.5.22.5.2

Determines whether to invoke VGA BIOS POST on S3/STR resume.
Configuration options: [No] [Yes]

2.5.32.5.3

2.5.3

2.5.32.5.3

Allows you to add more tables for Advanced Configuration and Power
Interface (ACPI) 2.0 specifications. Configuration options: [No] [Yes]

2.5.42.5.4

2.5.4

2.5.42.5.4

Allows you to enable or disable the Advanced Configuration and Power
Interface (ACPI) support in the Application-Specific Integrated Circuit
(ASIC). When set to Enabled, the ACPI APIC table pointer is included in the
RSDT pointer list. Configuration options: [Disabled] [Enabled]

Suspend Mode [Auto]Suspend Mode [Auto]

Suspend Mode [Auto]

Suspend Mode [Auto]Suspend Mode [Auto]

Repost Video on S3 Resume [No]Repost Video on S3 Resume [No]

Repost Video on S3 Resume [No]

Repost Video on S3 Resume [No]Repost Video on S3 Resume [No]

ACPI 2.0 Support [No]ACPI 2.0 Support [No]

ACPI 2.0 Support [No]

ACPI 2.0 Support [No]ACPI 2.0 Support [No]

ACPI APIC Support [Enabled]ACPI APIC Support [Enabled]

ACPI APIC Support [Enabled]

ACPI APIC Support [Enabled]ACPI APIC Support [Enabled]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-272-27

2-27

2-272-27

2.5.52.5.5

2.5.5

2.5.52.5.5

APM Configuration

Restore on AC Power Loss [Power Off]

Power On By RTC Alarm [Disabled]
Power On By External Modems [Disabled]
Power On By PCI Devices [Disabled]
Power On By PS/2 Keyboard [Disabled]
Power On By PS/2 Mouse [Disabled]

Restore on AC Power Loss [Power Off]Restore on AC Power Loss [Power Off]

Restore on AC Power Loss [Power Off]

Restore on AC Power Loss [Power Off]Restore on AC Power Loss [Power Off]

APM ConfigurationAPM Configuration

APM Configuration

APM ConfigurationAPM Configuration

When set to Power Off, the system goes into off state after an AC power
loss. When set to Power On, the system goes on after an AC power loss.
When set to Last State, the system goes into either off or on state,
whatever the system state was before the AC power loss.
Configuration options: [Power Off] [Power On] [Last State]

Power On By RTC Alarm [Disabled]Power On By RTC Alarm [Disabled]

Power On By RTC Alarm [Disabled]

Power On By RTC Alarm [Disabled]Power On By RTC Alarm [Disabled]

Allows you to enable or disable RTC to generate a wake event. When this
item is set to Enabled, the items RTC Alarm Date, RTC Alarm Hour, RTC
Alarm Minute, and RTC Alarm Second appear with set values. Configuration
options: [Disabled] [Enabled]

Power On By External Modems [Disabled]Power On By External Modems [Disabled]

Power On By External Modems [Disabled]

Power On By External Modems [Disabled]Power On By External Modems [Disabled]

This allows either settings of [Enabled] or [Disabled] for powering up the
computer when the external modem receives a call while the computer is in
Soft-off mode. Configuration options: [Disabled] [Enabled]

The computer cannot receive or transmit data until the computer and
applications are fully running. Thus, connection cannot be made on the
first try. Turning an external modem off and then back on while the
computer is off causes an initialization string that turns the system
power on.

Power On By PCI Devices [Disabled]Power On By PCI Devices [Disabled]

Power On By PCI Devices [Disabled]

Power On By PCI Devices [Disabled]Power On By PCI Devices [Disabled]

When set to [Enabled], this parameter allows you to turn on the system
through a PCI LAN or modem card. This feature requires an ATX power
supply that provides at least 1A on the +5VSB lead.
Configuration options: [Disabled] [Enabled]

2-282-28

2-28

2-282-28

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

Power On By PS/2 Keyboard [Disabled]Power On By PS/2 Keyboard [Disabled]

Power On By PS/2 Keyboard [Disabled]

Power On By PS/2 Keyboard [Disabled]Power On By PS/2 Keyboard [Disabled]

Allows you to use specific keys on the keyboard to turn on the system.
This feature requires an ATX power supply that provides at least 1A on the
+5VSB lead. Configuration options: [Disabled] [Space Bar] [Ctrl-Esc]
[Power Key]

Power On By PS/2 Mouse [Disabled]Power On By PS/2 Mouse [Disabled]

Power On By PS/2 Mouse [Disabled]

Power On By PS/2 Mouse [Disabled]Power On By PS/2 Mouse [Disabled]

When set to [Enabled], this parameter allows you to use the PS/2 mouse
to turn on the system. This feature requires an ATX power supply that
provides at least 1A on the +5VSB lead.
Configuration options: [Disabled] [Enabled]

2.5.62.5.6

2.5.6

2.5.62.5.6

Hardware Monitor

CPU Temperature [48ºC/118ºF]
MB Temperature [38ºC/100ºF]

CPU Q-Fan Control [Disabled]

CPU Fan Speed [2463 RPM]
Chassis Fan Speed [N/A]

VCORE Voltage [ 1.320V]

3.3V Voltage [ 3.345V]
5V Voltage [ 5.094V]
12V Voltage [11.880V]

CPU Temperature [xxxC/xxxF]CPU Temperature [xxxC/xxxF]

CPU Temperature [xxxC/xxxF]

CPU Temperature [xxxC/xxxF]CPU Temperature [xxxC/xxxF]
MB Temperature [xxxC/xxxF]MB Temperature [xxxC/xxxF]

MB Temperature [xxxC/xxxF]

MB Temperature [xxxC/xxxF]MB Temperature [xxxC/xxxF]

Hardware MonitorHardware Monitor

Hardware Monitor

Hardware MonitorHardware Monitor

The onboard hardware monitor automatically detects and displays the
motherboard and CPU temperatures. Select Disabled if you do not wish to
display the detected temperatures.

CPU Q-Fan Control [Disabled]CPU Q-Fan Control [Disabled]

CPU Q-Fan Control [Disabled]

CPU Q-Fan Control [Disabled]CPU Q-Fan Control [Disabled]

Allows you to enable or disable the ASUS Q-Fan feature that smartly
adjusts the fan speeds for more efficient system operation.
Configuration options: [Disabled] [Enabled]

CPU Q-Fan ModeCPU Q-Fan Mode

The

CPU Q-Fan Mode,

CPU Q-Fan ModeCPU Q-Fan Mode

TemperatureTemperature

Temperature, and

TemperatureTemperature
enable the

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

CPU Fan RatioCPU Fan Ratio

CPU Fan Ratio,

CPU Fan RatioCPU Fan Ratio

Chassis Q-Fan ControlChassis Q-Fan Control

Chassis Q-Fan Control items appear when you

CPU Q-Fan ControlCPU Q-Fan Control

CPU Q-Fan Control feature.

CPU Q-Fan ControlCPU Q-Fan Control

Chassis Q-Fan ControlChassis Q-Fan Control

CPU TargetCPU Target

CPU Target

CPU TargetCPU Target

2-292-29

2-29

2-292-29

CPU Q-Fan Mode [PWM]CPU Q-Fan Mode [PWM]

CPU Q-Fan Mode [PWM]

CPU Q-Fan Mode [PWM]CPU Q-Fan Mode [PWM]

Allows you to select the type of CPU fan cable connected to the CPU fan
connector. Set to [PWM] when using a 4-pin CPU fan cable. Set to [DC]
when using a 3-pin CPU fan cable. Configuration options: [PWM] [DC]

Some CPU fans with a 4-pin cable do not comply with Intel®‘s PWM fan
specification. When using this type of CPU fan, you can not reduce the
CPU fan speed even if you set the CPU Q-Fan Mode to [PWM].

CPU Fan Ratio [Auto]CPU Fan Ratio [Auto]

CPU Fan Ratio [Auto]

CPU Fan Ratio [Auto]CPU Fan Ratio [Auto]

Allows you to select the appropriate CPU fan speed ratio for the system.
The default [Auto] automatically selects the fan speed ratio when
operating a low CPU temperature. Select a higher ratio if you installed
additional devices and the system requires more ventilation. This item
appears only when the CPU Q-Fan Control item is Enabled.
Configuration options: [Auto] [90%] [80%] [70%] [60%]

CPU Target Temperature [xxxºC]CPU Target Temperature [xxxºC]

CPU Target Temperature [xxxºC]

CPU Target Temperature [xxxºC]CPU Target Temperature [xxxºC]

Allows you to set the CPU temperature threshold when the CPU fan speed
is increased to lower the CPU temperature. This item appears only when
the CPU Q-Fan Control item is Enabled. The configuration options vary
depending on the CPU installed.

CPU Fan Speed [xxxxRPM] or [N/A]CPU Fan Speed [xxxxRPM] or [N/A]

CPU Fan Speed [xxxxRPM] or [N/A]

CPU Fan Speed [xxxxRPM] or [N/A]CPU Fan Speed [xxxxRPM] or [N/A]

The onboard hardware monitor automatically detects and displays the CPU
fan speed in rotations per minute (RPM). If the fan is not connected to the
motherboard, the field shows N/A.

Chassis Fan Speed [xxxxRPM] or [N/A]Chassis Fan Speed [xxxxRPM] or [N/A]

Chassis Fan Speed [xxxxRPM] or [N/A]

Chassis Fan Speed [xxxxRPM] or [N/A]Chassis Fan Speed [xxxxRPM] or [N/A]

The onboard hardware monitor automatically detects and displays the
chassis fan speed in rotations per minute (RPM). If the fan is not connected
to the chassis, the specific field shows N/A.

VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V VoltageVCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage

VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage

VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V VoltageVCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage

The onboard hardware monitor automatically detects the voltage output
through the onboard voltage regulators.

2-302-30

2-30

2-302-30

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

2.6 Boot menu

The Boot menu items allow you to change the system boot options. Select
an item then press <Enter> to display the sub-menu.

APM Configuration

Boot Device Priority

Boot Settings Configuration
Security

Select Screen
Select Item
Enter Go to Sub-screen
F1 General Help
F10 Save and Exit
ESC Exit

2.6.12.6.1

2.6.1

2.6.12.6.1

Boot Device Priority

1st Boot Device [1st FLOPPY DRIVE]
2nd Boot Device [PM-ST330620A]
3rd Boot Device [PS-ASUS CD-S360]

1st ~ xxth Boot Device [1st Floppy Drive]1st ~ xxth Boot Device [1st Floppy Drive]

1st ~ xxth Boot Device [1st Floppy Drive]

1st ~ xxth Boot Device [1st Floppy Drive]1st ~ xxth Boot Device [1st Floppy Drive]

Boot Device PriorityBoot Device Priority

Boot Device Priority

Boot Device PriorityBoot Device Priority

These items specify the boot device priority sequence from the available
devices. The number of device items that appears on the screen depends
on the number of devices installed in the system.
Configuration options: [xxxxx Drive] [Disabled]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-312-31

2-31

2-312-31

2.6.22.6.2

2.6.2

2.6.22.6.2

Boot Settings ConfigurationBoot Settings Configuration

Boot Settings Configuration

Boot Settings ConfigurationBoot Settings Configuration

Boot Settings Configuration

Quick Boot [Enabled]
Full Screen Logo [Enabled]
AddOn ROM Display Mode [Force BIOS]
Bootup Num-Lock [On]
PS/2 Mouse Support [Auto]
Wait For ‘F1’ If Error [Enabled]
Hit ‘DEL’ Message Display [Enabled]
Interrupt 19 Capture [Disabled]

Quick Boot [Enabled]Quick Boot [Enabled]

Quick Boot [Enabled]

Quick Boot [Enabled]Quick Boot [Enabled]

Allows BIOS to skip
certain tests while
booting. This will
decrease the time
needed to boot the
system.

Enabling this item allows the BIOS to skip some power on self tests (POST)
while booting to decrease the time needed to boot the system. When set
to [Disabled], BIOS performs all the POST items.
Configuration options: [Disabled] [Enabled]

Full Screen Logo [Enabled]Full Screen Logo [Enabled]

Full Screen Logo [Enabled]

Full Screen Logo [Enabled]Full Screen Logo [Enabled]

This allows you to enable or disable the full screen logo display feature.
Configuration options: [Disabled] [Enabled]

Set this item to [Enabled] to use the ASUS MyLogo2™ feature.

Add On ROM Display Mode [Force BIOS]Add On ROM Display Mode [Force BIOS]

Add On ROM Display Mode [Force BIOS]

Add On ROM Display Mode [Force BIOS]Add On ROM Display Mode [Force BIOS]

Sets the display mode for option ROM.
Configuration options: [Force BIOS] [Keep Current]

Bootup Num-Lock [On]Bootup Num-Lock [On]

Bootup Num-Lock [On]

Bootup Num-Lock [On]Bootup Num-Lock [On]

Allows you to select the power-on state for the NumLock.
Configuration options: [Off] [On]

PS/2 Mouse Support [Auto]PS/2 Mouse Support [Auto]

PS/2 Mouse Support [Auto]

PS/2 Mouse Support [Auto]PS/2 Mouse Support [Auto]

Allows you to enable or disable support for PS/2 mouse.
Configuration options: [Disabled] [Enabled] [Auto]

Wait for ‘F1’ If Error [Enabled]Wait for ‘F1’ If Error [Enabled]

Wait for ‘F1’ If Error [Enabled]

Wait for ‘F1’ If Error [Enabled]Wait for ‘F1’ If Error [Enabled]

When set to Enabled, the system waits for the F1 key to be pressed when
error occurs. Configuration options: [Disabled] [Enabled]

Hit ‘DEL’ Message Display [Enabled]Hit ‘DEL’ Message Display [Enabled]

Hit ‘DEL’ Message Display [Enabled]

Hit ‘DEL’ Message Display [Enabled]Hit ‘DEL’ Message Display [Enabled]

When set to Enabled, the system displays the message “Press DEL to run
Setup” during POST. Configuration options: [Disabled] [Enabled]

2-322-32

2-32

2-322-32

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

Interrupt 19 Capture [Disabled]Interrupt 19 Capture [Disabled]

Interrupt 19 Capture [Disabled]

Interrupt 19 Capture [Disabled]Interrupt 19 Capture [Disabled]

When set to [Enabled], this function allows the option ROMs to trap
Interrupt 19. Configuration options: [Disabled] [Enabled]

2.6.32.6.3

2.6.3

2.6.32.6.3

SecuritySecurity

Security

SecuritySecurity

The Security menu items allow you to change the system security settings.
Select an item then press <Enter> to display the configuration options.

Security Settings

Supervisor Password : Not Installed
User Password : Not Installed

Change Supervisor Password

Boot Sector Virus Protection [Disabled]

Change Supervisor PasswordChange Supervisor Password

Change Supervisor Password

Change Supervisor PasswordChange Supervisor Password

<Enter> to change
password.
<Enter> again to
disabled password.

Select this item to set or change the supervisor password. The Supervisor
Password item on top of the screen shows the default
After you set a password, this item shows

InstalledInstalled

Installed.

InstalledInstalled

Not InstalledNot Installed

Not Installed.

Not InstalledNot Installed

To set a Supervisor Password:

1. Select the Change Supervisor Password item and press <Enter>.

2. From the password box, type a password composed of at least six
letters and/or numbers, then press <Enter>.

3. Confirm the password when prompted.

The message “Password Installed” appears after you successfully set your
password.

To change the supervisor password, follow the same steps as in setting a
user password.

To clear the supervisor password, select the Change Supervisor Password
then press <Enter>. The message “Password Uninstalled” appears.

If you forget your BIOS password, you can clear clear it by erasing the
CMOS Real Time Clock (RTC) RAM. See section “1.9 Jumpers” for
information on how to erase the RTC RAM.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-332-33

2-33

2-332-33

After you have set a supervisor password, the other items appear to allow
you to change other security settings.

Security Settings

Supervisor Password : Not Installed
User Password : Not Installed

Change Supervisor Password
User Access Level [Full Access]
Change User Password
Clear User Password
Password Check [Setup]

Boot Sector Virus Protection [Disabled]

User Access Level (Full Access]User Access Level (Full Access]

User Access Level (Full Access]

User Access Level (Full Access]User Access Level (Full Access]

Select Screen

This item allows you to select the access restriction to the Setup items.
Configuration options: [No Access] [View Only] [Limited] [Full Access]

No AccessNo Access

No Access prevents user access to the Setup utility.

No AccessNo Access

View Only View Only

View Only allows access but does not allow change to any field.

View Only View Only

Limited Limited

Limited allows changes only to selected fields, such as Date and

Limited Limited
Time.

Full AccessFull Access

Full Access allows viewing and changing all the fields in the Setup

Full AccessFull Access
utility.

Change User PasswordChange User Password

Change User Password

Change User PasswordChange User Password

Select this item to set or change the user password. The User Password
item on top of the screen shows the default
a password, this item shows

InstalledInstalled

Installed.

InstalledInstalled

Not InstalledNot Installed

Not Installed. After you set

Not InstalledNot Installed

To set a User Password:

1. Select the Change User Password item and press <Enter>.

2. On the password box that appears, type a password composed of at
least six letters and/or numbers, then press <Enter>.

3. Confirm the password when prompted.

The message “Password Installed” appears after you set your password
successfully.

To change the user password, follow the same steps as in setting a user
password.

2-342-34

2-34

2-342-34

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

Clear User PasswordClear User Password

Clear User Password

Clear User PasswordClear User Password

Select this item to clear the user password.

Password Check [Setup]Password Check [Setup]

Password Check [Setup]

Password Check [Setup]Password Check [Setup]

When set to [Setup], BIOS checks for user password when accessing the
Setup utility. When set to [Always], BIOS checks for user password both
when accessing Setup and booting the system.
Configuration options: [Setup] [Always]

Boot Sector Virus Protection [Disabled]Boot Sector Virus Protection [Disabled]

Boot Sector Virus Protection [Disabled]

Boot Sector Virus Protection [Disabled]Boot Sector Virus Protection [Disabled]

Allows you to enable or disable the boot sector virus protection.
Configuration options: [Disabled] [Enabled]

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

2-352-35

2-35

2-352-35

2.7 Exit menu

The Exit menu items allow you to load the optimal or failsafe default values
for the BIOS items, and save or discard your changes to the BIOS items.

Exit Options

Exit & Save Changes
Exit & Discard Changes
Discard Changes

Load Setup Defaults

Pressing <Esc> does not immediately exit this menu. Select one of the
options from this menu or <F10> from the legend bar to exit.

Exit & Save ChangesExit & Save Changes

Exit & Save Changes

Exit & Save ChangesExit & Save Changes

Exit system setup
after saving the
changes.

F10 key can be used
for this operation.

Once you are finished making your selections, choose this option from the
Exit menu to ensure the values you selected are saved to the CMOS RAM.
An onboard backup battery sustains the CMOS RAM so it stays on even
when the PC is turned off. When you select this option, a confirmation
window appears. Select

If you attempt to exit the Setup program without saving your changes,
the program prompts you with a message asking if you want to save
your changes before exiting. Press <Enter> to save the changes while
exiting.

Exit & Discard ChangesExit & Discard Changes

Exit & Discard Changes

Exit & Discard ChangesExit & Discard Changes

YesYes

Y e s to save changes and exit.

YesYes

Select this option only if you do not want to save the changes that you
made to the Setup program. If you made changes to fields other than
System Date, System Time, and Password, the BIOS asks for a confirmation
before exiting.

Discard ChangesDiscard Changes

Discard Changes

Discard ChangesDiscard Changes

This option allows you to discard the selections you made and restore the
previously saved values. After selecting this option, a confirmation appears.

YesYes

Select

Y e s to discard any changes and load the previously saved values.

YesYes

Load Setup DefaultsLoad Setup Defaults

Load Setup Defaults

Load Setup DefaultsLoad Setup Defaults

This option allows you to load the default values for each of the
parameters on the Setup menus. When you select this option or if you
press <F5>, a confirmation window appears. Select
values. Select

Exit & Save ChangesExit & Save Changes

Exit & Save Changes or make other changes before

Exit & Save ChangesExit & Save Changes

YesYes

Y e s to load default

YesYes

saving the values to the non-volatile RAM.

2-362-36

2-36

2-362-36

Chapter 2: BIOS setupChapter 2: BIOS setup

Chapter 2: BIOS setup

Chapter 2: BIOS setupChapter 2: BIOS setup

This chapter describes the contents
of the support CD that comes with
the motherboard package.

Software

3

support

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

3-13-1

3-1

3-13-1

3.1 Installing an operating system

This motherboard supports Windows® 98SE/ME/2000/XP/2003 Server
operating systems (OS). Always install the latest OS version and
corresponding updates to maximize the features of your hardware.

• Motherboard settings and hardware options vary. Use the setup
procedures presented in this chapter for reference only. Refer to
your OS documentation for detailed information.

• Make sure that you install Windows® 2000 Service Pack 4 or the
Windows® XP Service Pack 1 or later versions before installing the
drivers for better compatibility and system stability.

3.2 Support CD information

The support CD that came with the motherboard package contains the
drivers, software applications, and utilities that you can install to avail all
motherboard features.

The contents of the support CD are subject to change at any time
without notice. Visit the ASUS website(www.asus.com) for updates.

3.2.13.2.1

3.2.1

3.2.13.2.1

Running the support CDRunning the support CD

Running the support CD

Running the support CDRunning the support CD

Place the support CD to the optical drive. The CD automatically displays the
Drivers Drivers

Drivers menu if Autorun is enabled in your computer.

Drivers Drivers

Click an icon toClick an icon to

Click an icon to

Click an icon toClick an icon to
display supportdisplay support

display support

display supportdisplay support
CD/motherboardCD/motherboard

CD/motherboard

CD/motherboardCD/motherboard
informationinformation

information

informationinformation

Click an item to installClick an item to install

Click an item to install

Click an item to installClick an item to install

Autorun Autorun

If

Autorun is NOT enabled in your computer, browse the contents of

Autorun Autorun

3-23-2

3-2

3-23-2

the support CD to locate the file ASSETUP.EXE from the BIN folder.
Double-click the

ASSETUP.EXEASSETUP.EXE

ASSETUP.EXE to run the CD.

ASSETUP.EXEASSETUP.EXE

Chapter 3: Software supportChapter 3: Software support

Chapter 3: Software support

Chapter 3: Software supportChapter 3: Software support

3.2.23.2.2

3.2.2

3.2.23.2.2

The drivers menu shows the available device drivers if the system detects
installed devices. Install the necessary drivers to activate the devices.

Intel(R) Chipset Inf Update ProgramIntel(R) Chipset Inf Update Program

Intel(R) Chipset Inf Update Program

Intel(R) Chipset Inf Update ProgramIntel(R) Chipset Inf Update Program

This item installs the Intel® Chipset INF Update Program. This driver enables
Plug-n-Play INF support for the Intel® chipset components on the
motherboard. When installed to the target system, this driver provides the
method for configuring the chipset components.

You can install this utility using three different modes: interactive, silent, or
unattended preload. Installing the driver in interactive mode requires user
input during installation. User input is not required when installing the driver
in silent or unattended preload modes. Refer to the online help or readme
file that came with the utility for details.

Drivers menuDrivers menu

Drivers menu

Drivers menuDrivers menu

Realtek 8100C LAN DriverRealtek 8100C LAN Driver

Realtek 8100C LAN Driver

Realtek 8100C LAN DriverRealtek 8100C LAN Driver

Installs the Realtek® 8100C Ethernet device driver.

Intel(R) Graphics Accelerator DriverIntel(R) Graphics Accelerator Driver

Intel(R) Graphics Accelerator Driver

Intel(R) Graphics Accelerator DriverIntel(R) Graphics Accelerator Driver

Installs the Intel® graphics accelerator driver.

Realtek ALC655 Audio DriverRealtek ALC655 Audio Driver

Realtek ALC655 Audio Driver

Realtek ALC655 Audio DriverRealtek ALC655 Audio Driver

Executes the wizard to install the Realtek® ALC655 audio driver and
application.

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

3-33-3

3-3

3-33-3

3.2.33.2.3

3.2.3

3.2.33.2.3

The Utilities menu shows the applications and other software that the
motherboard supports.

ASUS PC ProbeASUS PC Probe

ASUS PC Probe

ASUS PC ProbeASUS PC Probe

This smart utility monitors the fan speed, CPU temperature, and system
voltages, and alerts you of any detected problems. This utility helps you
keep your computer in healthy operating condition.

ASUS UpdateASUS Update

ASUS Update

ASUS UpdateASUS Update

The ASUS Update utility allows you to update the motherboard BIOS in a
Windows® environment. This utility requires an Internet connection either
through a network or an Internet Service Provider (ISP). See page 2-8 for
details.

Utilities menuUtilities menu

Utilities menu

Utilities menuUtilities menu

Microsoft DirectXMicrosoft DirectX

Microsoft DirectX

Microsoft DirectXMicrosoft DirectX

Installs the Microsoft® DirectX 9.0b driver.

Anti-Virus UtilityAnti-Virus Utility

Anti-Virus Utility

Anti-Virus UtilityAnti-Virus Utility

Installs the anti-virus program. View the online help for detailed
information.

ADOBE Acrobat ReaderADOBE Acrobat Reader

ADOBE Acrobat Reader

ADOBE Acrobat ReaderADOBE Acrobat Reader

Installs the Adobe® Acrobat® Reader V5.0.

ASUS Screen SaverASUS Screen Saver

ASUS Screen Saver

ASUS Screen SaverASUS Screen Saver

Installs the ASUS screen saver.

3-43-4

3-4

3-43-4

Chapter 3: Software supportChapter 3: Software support

Chapter 3: Software support

Chapter 3: Software supportChapter 3: Software support

3.2.43.2.4

3.2.4

3.2.43.2.4

Click the
also find this information on the inside front cover of this user guide.

ASUS Contact informationASUS Contact information

ASUS Contact information

ASUS Contact informationASUS Contact information

Contact Contact

Contact tab to display the ASUS contact information. You can

Contact Contact

ASUS P5P800-MXASUS P5P800-MX

ASUS P5P800-MX

ASUS P5P800-MXASUS P5P800-MX

3-53-5

3-5

3-53-5

3-63-6

3-6

3-63-6

Chapter 3: Software supportChapter 3: Software support

Chapter 3: Software support

Chapter 3: Software supportChapter 3: Software support