ASUS P1-P5945GCX, P2-P5945GCX User Guide

P1/P2-P5945GCX

ASUS PC (Desktop Barebone)

User Guide

E3532

First Edition

December 2007

Copyright © 2007 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, modied or altered, unless
such repair, modication 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 identication or explanation and to the
owners’ benet, without intent to infringe.

ii

Table of contents

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

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

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

System package contents ........................................................................... x

Chapter 1: System Introduction

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

1.2 Front panel ...................................................................................

1.3 Rear panel .....................................................................................

1.4 Internal components ....................................................................

Chapter 2: Basic Installation

2.1 Preparation ................................................................................... 2-2

2.2 Before you proceed .....................................................................

2.3 Removing the chassis cover .......................................................

2.4 Removing the front panel assembly ..........................................

2.5 Central Processing Unit (CPU) ...................................................

2.5.1 Overview .........................................................................

2.5.2 Removing the storage drive assembly ............................

2.5.3 Installing CPU .................................................................

2.5.4 Removing and Installing the CPU fan and heatsink

assembly ......................................................................... 2-6

2.6 Installing a DIMM ..........................................................................

2.6.1 Memory congurations ....................................................

2.6.2 Installing a DDR2 DIMM ...............................................

2.6.3 Removing a DDR2 DIMM .............................................

2.7 Expansion slots ..........................................................................

2.7.1 PCI slots .........................................................................

2.7.2 Expansion card installation ............................................

2.8 Installing an optical drive and reinstalling the storage drive

assembly ..................................................................................... 2-14

2.9 Installing the foot stand .............................................................

2.10 Reinstalling the chassis cover ..................................................

2.11 Reinstalling the

front panel assembly ..................................... 2-16

1-2

1-4

1-6

2-2

2-3

2-3

2-4

2-4

2-4

2-4

2-7

2-7

2-10

2-10

2-11

2-11

2-11

2-16

2-16

Chapter 3: Starting up

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

iii

Table of contents

3.2 Powering up .................................................................................. 3-2

3.3 Support CD information ..............................................................

3.3.1 Running the support CD .................................................

3.3.2 Utilities menu ..................................................................

3.3.3 ASUS Contact information ..............................................

3.4 Software information ...................................................................

ASUS PC Probe II .......................................................................... 3-6

Chapter 4: Motherboard Info

4.1 Introduction .................................................................................. 4-2

4.2 Motherboard layout ......................................................................

4.3 Jumpers ........................................................................................

4.4 Connectors ...................................................................................

Chapter 5: BIOS Information

5.1 Managing and updating your BIOS ............................................ 5-2

5.1.1 ASUS EZ Flash utility ......................................................

5.1.2 AFUDOS utility ................................................................

5.1.3 ASUS CrashFree BIOS 2 utility ......................................

5.1.4 ASUS Update utility ........................................................

5.2 BIOS setup program ..................................................................

5.2.1 BIOS menu screen ........................................................

5.2.2 Menu bar .......................................................................

5.2.3 Navigation keys .............................................................

5.2.4 Menu items ...................................................................

5.2.5 Sub-menu items ............................................................

5.2.6 Conguration elds .......................................................

5.2.7 Pop-up window .............................................................

5.2.8 Scroll bar .......................................................................

5.2.9 General help .................................................................

5.3 Main menu ..................................................................................

5.3.1 System Time ................................................................

5.3.2 System Date ................................................................

5.3.3 Primary IDE Master/Slave .............................................

5.3.4 SATA1 ...........................................................................

5.3.5 IDE Conguration ..........................................................

5.3.6 System Information .......................................................

3-2

3-3

3-4

3-5

3-6

4-2

4-3

4-5

5-3

5-4

5-6

5-8

5-11

5-12

5-12

5-12

5-13

5-13

5-13

5-13

5-13

5-13

5-14

5-14

5-14

5-15

5-16

5-17

5-18

iv

Table of contents

5.4 Advanced menu ......................................................................... 5-19

5.4.1 JumperFree Conguration ............................................

5.4.2 USB Conguration ........................................................

5.4.3 CPU Conguration ........................................................

5.4.4 Chipset ..........................................................................

5.4.5 Onboard Devices Conguration ....................................

5.4.6 PCI PnP ........................................................................

5.5 Power menu ................................................................................

5.5.1 Suspend Mode .............................................................

5.5.2 ACPI 2.0 Support .........................................................

5.5.3 ACPI APIC Support ......................................................

5.5.4 APM Conguration ........................................................

5.5.5 Hardware Monitor .........................................................

5.6 Boot menu ..................................................................................

5.6.1 Boot Device Priority ......................................................

5.6.2 Boot Settings Conguration ..........................................

5.6.3 Security .........................................................................

5.7 Exit menu ....................................................................................

5-19

5-21

5-22

5-24

5-25

5-26

5-27

5-27

5-27

5-28

5-28

5-30

5-31

5-31

5-32

5-33

5-35

v

Notices

Federal 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 modications

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 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 Canadian ICES-003.

vi

Safety information

Electrical 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 the power supply is broken, do not try to x it by yourself. Contact a qualied

service technician or your retailer.

Operation safety

•

Before installing devices into the system, carefully read all the documentation
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 qualied

service technician or your retailer.

Lithium-Ion Battery Warning

CAUTION: Danger of explosion if battery is incorrectly replaced. Replace

only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer’s instructions.

VORSICHT: Explosionsgetahr bei unsachgemäßen Austausch der Batterie.

Ersatz nur durch denselben oder einem vom Hersteller empfohlenem

ähnljchen Typ. Entsorgung gebrauchter Batterien nach Angaben des
Herstellers.

LASER PRODUCT WARNING

CLASS 1 LASER PRODUCT

The symbol of the crossed out wheeled bin indicates that the product (electrical,

electronic equipment, Mercury-containing button cell battery) should not be

placed in municipal waste. Check local regulations for disposal of electronic
products.

vii

About this guide

Audience

This guide provides general information and installation instructions about ASUS

P1/P2-P5945GCX barebone system. This guide is intended for experienced users

and integrators with hardware knowledge of personal computers.

How this guide is organized

This guide contains the following parts:

1. Chapter 1: System introduction

This chapter gives a general description of ASUS P1/P2-P5945GCX. The

chapter lists the system features, including introduction on the front and rear
panel, and internal components.

2. Chapter 2: Basic installation

This chapter provides step-by-step instructions on how to install components

in the system.

3. Chapter 3: Starting up

This chapter helps you power up the system and install drivers and utilities
from the support CD.

4. Chapter 4: Motherboard information

This chapter gives information about the motherboard that comes with the
system. This chapter includes the motherboard layout, jumper settings, and
connector locations.

5. Chapter 5: BIOS information

This chapter tells how to change system settings through the BIOS Setup
menus and describes the BIOS parameters.

viii

Conventions used in this guide

WARNING: Information to prevent injury to yourself when trying to

complete a task.

CAUTION: Information to prevent damage to the components when
trying to complete a task.

IMPORTANT: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to aid in completing a task.

Where to nd more information

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

1. ASUS Websites

The ASUS websites worldwide provide updated information on ASUS
hardware and software products. Refer to the ASUS contact information.

2. Optional Documentation

Your product package may include optional documentation, such as warranty

yers, that may have been added by your dealer. These documents are not

part of the standard package.

ix

System package contents

Check your P1/P2-P5945GCX system package for the following items.

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

Item description

1. ASUS book size barebone system with

•

ASUS motherboard

• 200W power supply unit

• PCI riser card

•

10/100M PCI LAN card

• CPU fan and heatsink assembly

2. Cables

• Power cable and plug

• Serial ATA power cable and signal cable

• IDE cable (preinstalled)

4. CDs

• Support CD

• Recover PRO CD (only support 2000/XP)

5. Quick Installation Guide

x

Chapter 1

This chapter gives a general
description of the ASUS

P1/P2-P5945GCX. The chapter

lists the system features including
introduction on the front and rear panel,
and internal components.

ASUS P1/P2-P5945GCX

System introduction

1.1 Welcome!

Thank you for choosing the ASUS P1/P2-P5945GCX!

The ASUS P1/P2-P5945GCX is an all-in-one barebone system with a versatile

home entertainment feature.

The system comes in a stylish mini-tower casing and powered by the ASUS

motherboard that supports the Intel® Pentium® D, Intel

®

Pentium® 4, Intel® Conroe

®

or Intel® Celeron® processor in the 775-land package.

The system supports up to 4 GB of system memory using DDR2-667/533/400
DIMMs, high-resolution graphics via integrated graphics controller, Serial ATA,
USB 2.0, and 8-channel audio features the system takes you ahead in the world of

power computing.

1.2 Front panel

The front panel includes the optical drive bays, power button, and several I/O ports
are located at the front panel.

Close

1

2

3

4

5

6

1-2 Chapter 1: System introduction

Open

7

8

9

10

11

12

13

14

1. Optical drive eject button. Press to eject the optical drive.

2. HDD LED.

disk drive.

3. Optical drive bay cover.

4. Press to open the front panel cover.

5. Power LED.

6. Power button.

7. Reset button.

8. MS/MS Pro card slot.

9. CompactFlashTM Card slot.

10. SD/MMC card slot.

11. IEEE 1394 port.

12. USB 2.0 ports.

for connecting USB 2.0 devices such as a mouse, printer, scanner, camera,

PDA, and others.

13. Microphone port (pink).

14. Headphone port (lime).

This LED lights up when data is read from or written to the hard

Press this button to turn the system on.

Press to reset the system.

These Universal Serial Bus 2.0 (USB 2.0) ports are available

This port connects a microphone.

This port connects a headphone or a speaker.

1-3ASUS P1/P2-P5945GCX

1.3 Rear panel

SPDIF-O

KB/MS

The system rear panel includes the power connector and several I/O ports that
allow convenient connection of devices.

1

10

12

2

4

6

8

Setting the
switch to 115V

in a 230V

environment or

230V in a 115

environment
will seriously
damage the

system!

3

5

7

9

11

13

15

17

14

16

1. Power connector

2. Voltage selector.

This switch allows you to adjust the system input voltage

according to the voltage supply in your area. If the voltage supply in your

area is 100-127V, set this switch to 115V. If the voltage supply in your area is
200-240V, set this switch to 230V.

3. Center/Sub (yellow orange).

This port connects the center/subwoofer

speakers.

4. Surr-Side (black).

This port connects the side speakers in an 8-channel

audio conguration.

5. Surr-Rear (grey).

This port connects the rear speakers on a 4-channel, 6-

channel, or 8-channel audio conguration.

6. Line In port (light blue).

This port connects the tape, CD, DVD player, or

other audio sources.

7. Line Out port (lime).

This port connects a headphone or a speaker. In 4-

channel and 6-channel conguration, the function of this port becomes Front

Speaker Out.

8. Microphone port (pink).

9. PS/2 mouse port.

10. PS/2 keyboard port.

PS/2 keyboard.

This port connects a microphone.

This green 6-pin connector is for a PS/2 mouse.

This purple 6-pin connector is for a

1-4 Chapter 1: System introduction

11. LAN (RJ-45) port. This port allows 10/100M connection to a Local Area

Network (LAN) through a network hub.

12. USB 2.0 ports 1, 2, 3 and 4.

These 4-pin Universal Serial Bus (USB) ports

are available for connecting USB 2.0 devices.

SPDIF Out port. This port connects an external audio output device via an

13.

optical S/PDIF cable.

14. VGA port.

This 15-pin port is for a VGA monitor or orther VGA-compatible

devices.

15. DVI port.

This port is for any DVI-D compatible device. DVI-D can’t be

converted to output RGB Signal to CRT and isn’t compatible with DVI-I.

16. Serial port.

This 9-pin COM1 port is for serial devices.

17. PCI slot metal brackets

Refer to the audio conguration table below for the function of the audio ports in
2, 4, or 6-channel conguration.

Audio 2, 4, 6 or 8-channel conguration

Port Headset

Light Blue Line In

Lime

Pink

Gray •

Black • • • Side Speaker Out

Yellow Orange • • Center/Subwoofer Center/Subwoofer

2-channel

Line Out Front Speaker Out Front Speaker Out

Mic In Mic In Mic In Mic In

4-channel 6-channel 8-channel

Line In Line In Line In

Front Speaker Out

Rear Speaker Out Rear Speaker Out Rear Speaker Out

1-5ASUS P1/P2-P5945GCX

1.4 Internal components

The illustration below is the internal view of the system when you remove the
top cover. The installed components are labeled for your reference. Proceed to

Chapter 2 for instructions on installing additional system components.

3

1

2

4

5

6

8

7

1. 5.25-inch optical drive and

3.5 inch hard disk drive cage

2. Front panel cover

3. Power supply unit

4. PCI card riser bracket (connected

5. ASUS motherboard

6. DIMM sockets

7. LGA775 socket (under the CPU

fan and heatsink assembly)

8. CPU fan and heatsink assembly

to the motherboard PCI slot)

1-6 Chapter 1: System introduction

Chapter 2

This chapter provides step-by-step

instructions on how to install
components in the system.

ASUS P1/P2-P5945GCX

Basic installation

2.1 Preparation

R

Onboard LED

SB_PWR

ON

Standby

Power

OFF

Powered

Off

Before you proceed, make sure that you have all the components you plan to
install in the system.

Basic components to install

1. Central Processing Unit (CPU)

2. DDR2 Dual Inline Memory Module (DIMM)

3. Expansion card(s)

4. Hard disk drive

5. Optical drive

Tool

Phillips (cross) screw driver

2.2 Before you proceed

Take note of the following precautions before you install components into the
system.

•

Use a grounded wrist strap or touch a safely grounded object or 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.

The motherboard comes with an onboard standby power LED. This LED lights

up to indicate that the system is ON, in sleep mode or in soft-off mode, and not

powered OFF. Unplug the power cable from the power outlet and make sure that
the standby power LED is OFF before installing any system component.

2-2 Chapter 2: Basic installation

2.3 Removing the chassis cover

R

To remove the chassis cover:

1. Remove the cover screws. Keep
the screws for later use.

2. Pull the cover slightly toward the

rear panel.

1

2

3. Lift the cover, then set aside.

3

2.4 Removing the front panel assembly

To remove the front panel cover

1. Lift the front panel cover hooks
outward.

2. Carefully remove the front panel

cover, then set it aside.

1

2

2-3ASUS P1/P2-P5945GCX

2.5 Central Processing Unit (CPU)

2.5.1 Overview

The motherboard comes with a surface mount LGA775 socket designed for the

Intel® Pentium

2.5.2 Removing the storage drive assembly

1. Lay the system on its side, then locate and remove three storage drive
assembly screws.

2. Lift the storage drive assembly, then set aside.

®

4 processor in the 775-land package.

•

Check your motherboard to make sure that the PnP cap is on the CPU
socket and the socket contacts are not bent. Contact your retailer
immediately if the PnP cap is missing, or if you see any damage to the PnP
cap/socket contacts/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 contacts
resulting from incorrect CPU installation/removal, or misplacement/loss/
incorrect removal of the PnP cap.

2

1

1

1

2.5.3 Installing CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

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

2-4 Chapter 2: Basic installation

2. Press the load lever with your thumb

(A), then move it to the left (B) until it is
released from the retention tab.

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

Retention tab

A

B

Load lever

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

4. Lift the load plate with your thumb and

forenger to a 100º angle (4A), then

push the PnP cap from the load plate
window to remove (4B).

5. Position the CPU over the socket,
making sure that the gold triangle is on

the bottom-left corner of the socket then
t the socket alignment key into the CPU

notch.

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

PnP cap
Load plate

4B

4A

3

CPU notch

Gold
triangle
mark

Alignment key

A

B

2-5ASUS P1/P2-P5945GCX

2.5.4 Removing and Installing the CPU fan and heatsink

R

CPU FAN Connector

CPU_FAN

GND

+12V

Tachometer

assembly

The system package includes a proprietary CPU fan and heatsink assembly to
ensure optimum thermal condition and performance.

DO NOT replace the proprietary CPU fan and heatsink with other models!

To remove the CPU fan and heatsink assembly:

1. Disconnect the CPU fan cable.

2. Loosen the CPU fan and heatsink

assembly screws with a screw
driver.

3. Lift the CPU fan and heatsink
assembly, then set aside.

2

3

To reinstall the CPU fan and heatsink assembly:

Locate the CPU fan and heatsink assembly and secure it with the four

screws, then reconnect the CPU fan cable to the CPU fan connector on the
motherboard.

Refer to the gure below for the location of the CPU fan connector on the

motherboard.

Do not forget to connect the CPU fan connector! Hardware monitoring errors

can occur if you fail to plug this connector.

2-6 Chapter 2: Basic installation

2.6 Installing a DIMM

R

40-pin DDR2 DIMM Sockets

DIMM_B1

DIMM_A1

128 Pins

112 Pins

The system motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline

Memory Module (DIMM) sockets.

The following gure illustrates the location of the sockets:

2.6.1 Memory congurations

You may install up to 2 GB system memory using 256 MB, 512 MB, and 1 GB
DDR2 DIMMs.

• Install only identical (the same type and size) DDR2 memory modules.

• Install only ASUS-certied memory modules. Refer to the DDR2 Qualied

Vendors List on the next page for details.

• Always install DIMMs with the same CAS latency. For optimum
compatibility, we recommend that you obtain memory modules from the
same vendor.

2-7ASUS P1/P2-P5945GCX

Qualied Vendors Lists (QVL)

DDR2-667

Size

Vendor Model

256MB

Kingston

256MB

Kingston KVR667D2N5/256

256MB Kingston KVR667D2N5/256 SS HYB18T256800AF3SW65 33154 • •

512MB Kingston

512MB Kingston

1G

Kingston

1G

Kingston KVR667D2N5/1G

1G Kingston KVR667D2N5/1G DS E5108AGBG-6E-E • •

512MB Samsung KR M378T6553CZ0-CE6 SS K4T51083QC • •

512MB

Samsung

512MB

Samsung M378T6553CZ3-CE6

1G Samsung M378T2953CZ3-CE6 DS K4T51083QC-ZCE6 • •

1G Samsung KR M378T2953CZ0-CE6 DS K4T51083QC-ZCE6 • •

256MB Qimonda HYS64T32000HU-3S-A SS HYB18T512160AF-3SSSS17310 • •

512MB Qimonda HYS64T32000HU-3S-A SS HYB18T5128000AF-3SSSS27416 • •

512MB Qimonda HYS64T64000HU-3S-A SS HYB18T512800AF3SFSS05346 • •

1G Qimonda HYS64T128020HU-3S-A DS HYB18T512800AF3SSSS28104 • •

512MB Corsair VS512MB667D2 SS 64M8CFEGPS0900647 • •

512MB Corsair VS512MB667D2 DS MIII0052532M8CEC • •

1G Corsair VS1GB667D2 DS MID095D62864M8CEC • •

1G Corsair XMS2-5400 DS Heat-Sink Package • •

256MB HY HYMP532U64CP6-Y5 AB SS HY5PS121621CFP-Y5 • •

512MB HY HYMP564U64AP8-Y4 AA SS HY5PS12821AFP-Y4 • •

512MB HY HYMP564U64AP8-Y5 AA SS HY5PS12821AFP-Y5 • •

1G HY HYMP512U64AP8-Y5 AB DS HY5PS12821AFP-Y5 • •

1G HY HYMP512U64CP8-Y5 AB DS HY5PS12521CFP-Y5 • •

512MB Kingmax KLCC28F-A8EB5 SS E5108AE-6E-E • •

512MB Kingmax KLCC28F-A8KB5 SS KKEA88B4LAUG-29DX • •

1G Kingmax KLCD48F-A8KB5 DS KKEA88B4LAUG-29DX • •

512MB Apacer 78.91092.420 SS E5108AE-6E-E • •

512MB Apacer AU512E667C5KBGC SS AM4B5708MIJS7E0627B • •

512MB Apacer AU512E667C5KBGC SS AM4B5708GQJS7E06332F • •

1G Apacer AU01GE667C5KBGC DS AM4B5708GQJS7E0636B • •

1G Apacer 78.01092.420 DS E5108AE-6E-E • •

1G Apacer AU01GE667C5KBGC DS AM4B5708MIJS7E0627B • •

512MB ADATA M20EL5G3H3160B1C0Z SS E5108AE-6E-E • •

512MB ADATA M20AD5G3H3166I1C52 SS AD29608A8A-3EG20648 • •

512MB ADATA M20AD5G3H3166I1C52 SS AD29608A8A-3EG20718 • •

1G ADATA M2OAD5G3I4176I1C52 DS AD29608A8A-3EG20645 • •

512MB VDATA M2GVD5G3H31A4I1C52 SS VD29608A8A-3EC20615 • •

512MB VDATA M2YVD5G3H31P4I1C52 SS VD29608A8A-3EG20627 • •

512MB VDATA M2GVD5G3H166I1C52 SS VD29608A8A-3EG20637 • •

1G VDATA M2GVD5G3I41P6I1C52 DS VD29608A8A-3EG20627 • •

1G VDATA M2GVD5G3I41C4I1C52 DS VD29608A8A-3EC20620 • •

1G VDATA M2GVD5G3I4176I1C52 DS VD29608A8A-3EG20641 • •

512MB PSC AL6E8E63B-6E1K SS A3R12E3GEF637BLC5N • •

1G PSC AL7E8E63B-6E1K DS A3R12E3GEF637BLC5N • •

256MB Nanya NT256T64UH4A1FY-3C SS NT5TU32M16AG-3C • •

512MB Nanya NT512T64U88A1BY-3C SS NT5TU64M8AE-3C • •

KVR667D2N5/256 SS

KVR667D2N5/512

KVR667D2N5/512 SS

KVR667D2N5/1G DS

KR M378T6453FZ0-CE6 DS

Side(s) Component

E2508AB-6E-E •

SS

D3216TLSAKL3U •

SS D6408TE8WL-27

E5108AGBG-6E-E

D6408TE8WL-3

DS

D6408TEBGGL3U •

K4T56083QF-ZCE6

SS

K4T51083QC-ZCE6 •

DIMM support

A* B*

•

• •

• •

• •

•

•

•

•

•

2-8 Chapter 2: Basic installation

DDR2-533

DIMM

Size Vendor

1G Kingston

256MB Samsung M378T3253FG0-CD5

512MB Samsung M378T6553BG0-CD5 SS K4T51083QB-GCD5 • •

256MB

512MB Qimonda

512MB Qimonda HYS64T64000HU-3.7-A

512MB

256MB HY HYMP532U64CP6-C4 AB SS HY5PS121621CFP-C4 • •

1G HY HYMP512U64CP8-C4 AB DS HY5PS12821CFP-C4 • •

512MB

512MB Micron

1G Micron MT 16HTF12864AY-53EA1 DS D9CRZ • •

512MB Corsair VS512MB533D2 DS MIII0052532M8CEC • •

512MB Corsair VS512MB533D2 DS MI110052532M8CEC • •

1G Corsair VS1GB533D2 DS 64M8CFEGQIB0900718 • •

512MB Elpida EBE51UD8ABFA-5C-E SS E5108AB-5C-E • •

512MB Kingmax KLBC28F-A8KB4 SS KKEA88B4IAK-37 • •

256MB Kingmax KLBB68F-36EP4 SS E5116AB-5C-E • •

512MB Kingmax KLBC28F-A8EB4 SS E5108AE-5C-E • •

512MB ADATA M2OAD2G3H3166I1B52 SS AD29608A8A-37DG20719 • •

2G ADATA M20AD2H3J4170I1B53 DS AD20908A8A-37DG30721 • •

Qimonda HYS64T32000HU-3.7-A SS

Qimonda HYS64T64000HU-3.7-A SS

Micron MT 16HTF6464AG-53EB2 DS

Model

KVR533D2N4/1G DS D6408TE7BL-37

HYS64T64000GU-3.7-A SS HYB18T512800AC37SSS11511

MT 16HTF6464AG-53EB2 DS Z9BQT

Side(s) Component

SS K4T56083QF-GCD5 •

HYB18T512160AF-3.7AFSS31270 • •

SS HYB18T512800AF37SSS12079 •

HYB18T512800AF37FSS29334 • •

D9BOM • •

Side(s): SS - Single-sided DS - Double-sided

CL: CAS Latency

DIMM support:

A - Supports one module inserted into either slot, in Single-channel

memory conguration.

B - Supports one pair of modules inserted into both slots as one pair of

Dual-channel memory conguration.

support

A* B*

• •

• •

• •

•

•

2-9ASUS P1/P2-P5945GCX

2.6.2 Installing a DDR2 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 DDR2 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.

Unlocked retaining clip

A DDR2 DIMM is keyed with a notch so that it ts in only one direction. DO

NOT force a DIMM into a socket to avoid damaging the DIMM.

2

DDR2 DIMM notch

1

1

3. Firmly insert the DIMM into the

3

socket until the retaining clips snap
back in place and the DIMM is
properly seated.

Locked Retaining Clip

2.6.3 Removing a DDR2 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 ngers when pressing the retaining clips.
The DIMM might get damaged when it ips out with extra force.

1

2. Remove the DIMM from the socket.

2-10 Chapter 2: Basic installation

2

1

DDR2 DIMM notch

2.7 Expansion slots

This motherboard provides two PCI expansion slots, which locate on the PCI raiser
card that is connected to its slot on the motherboard.

2.7.1 PCI slots

The PCI slots support cards such as a LAN card, SCSI card, USB card, another

cards that comply with PCI specications.

Before installing an expansion card, read the documentation that came with it
and make the necessary hardware settings for the card.

The length of the PCI card should be less than 150mm on the system.

2.7.2 Expansion card installation

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. Lift the PCI riser card assembly to remove.

2-11ASUS P1/P2-P5945GCX

2. Remove the metal cover opposite the slot that you intend to use.

3. Insert the card connector to the slot, then press the card rmly until it ts in

place. Secure the card with a screw.

4. Reinstall the PCI riser card assembly. Make sure that the riser card connector sits
properly on the motherboard PCI slot.

2-12 Chapter 2: Basic installation

Standard interrupt assignments

IRQ

0 System Timer

1

2

3 IRQ holder for PCI steering*

4

5 IRQ holder for PCI steering*

6 Floppy Disk Controller

7

8 System CMOS/Real Time Clock

9 IRQ holder for PCI steering*

10 IRQ holder for PCI steering*

11 IRQ holder for PCI steering*

12 PS/2 Compatible Mouse Port*

13 Numeric Data Processor

14 Primary IDE Channel

15 Secondary IDE Channel

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

Standard Function

Keyboard Controller

Re-direct to IRQ#9

Communications Port (COM1)*

Printer Port (LPT1)*

IRQ assignments for this motherboard

A B C

PCI slot 1 shared — — — — — — —

PCI slot 2 —

Onboard USB controller 1

Onboard USB controller 2 — shared — — — — — —

Onboard USB controller 3 —

Onboard USB controller 4 — — — shared — — — —

Onboard USB 2.0 controller — — — — shared — — —

Onboard IDE port — — shared — — — — —

Onboard HD audio — — — shared — — — —

Onboard LAN shared — — — — — — —

shared — —

— — — —

— shared — —

D E F G

— — — —

shared — —

— — —

H

—

When using PCI cards on shared slots, ensure that the drivers support “Share

IRQ” or that the cards do not need IRQ assignments. Otherwise, conicts will

arise between the two PCI groups, making the system unstable and the card
inoperable.

2-13ASUS P1/P2-P5945GCX

2.8 Installing an optical drive and reinstalling

the storage drive assembly

Refer to the instructions in this section if you wish to install a new optical drive.

Follow these steps to install an optical drive:

1. Turn the storage drive assembly upside down with the 3.5-inch bay on top of
the 5.25-inch bay.

2. Insert the optical drive upside down to the 5.25-inch bay, then secure it with

two screws on both sides.

2

3. Turn the storage drive assembly, insert the hard disk drive upside down to the 3.5-

inch bay, then secure it with two screws on both sides.

3

2-14 Chapter 2: Basic installation

Follow these steps to reinstall the storage drive assembly:

R

R

Before reinstalling the storage drive assembly, connect the IDE/SATA and power
plugs to the IDE/SATA and power connectors at the back of the drives.

1. Connect the black plug of the IDE cable to the optical drive, then the gray
plug to the hard disk drive. If you have the SATA HDD, connect the SATA
cable to the SATA HD.

2. Connect the 4-pin power plugs to the power connectors at the back of the

drives.

3. Install the storage drive assembly to the chassis.

3

4. Secure the storage drive assembly with three screws.

4

2-15ASUS P1/P2-P5945GCX

2.9 Installing the foot stand

To install the foot stand:

1. Match the foot stand hooks to the holes on the chassis.

2. Pull the foot stand to the direction of the arrow until the lock clicks in place.

To remove the foot stand, lift the lock, then slightly push the foot stand to the
direction of the rear panel until it disengages from the chassis.

2.10 Reinstalling the chassis cover

To reinstall the front panel cover, refer to the section 2.3 Removing the chassis
cover and follow the instructions in reverse.

2.11 Reinstalling the front panel assembly

To reinstall the front panel cover, refer to the section 2.4 Removing the front
panel assembly and follow the instructions in reverse.

2-16 Chapter 2: Basic installation

Chapter 3

This chapter helps you power up the
system and install drivers and utilities
from the support CD.

ASUS P1/P2-P5945GCX

Starting up

3.1 Installing an operating system

The barebone system supports Windows® 2000/XP operating systems (OS).
Always install the latest OS version and corresponding updates so you can

maximize the features of your hardware.

Because motherboard settings and hardware options vary, use the setup
procedures presented in this chapter for general reference only. Refer to your
OS documentation for more information.

3.2 Powering up

Press the system power button (

) to enter the OS.

Press to turn ON the system

3.3 Support CD information

The support CD that came with the system contains useful software and several
utility drivers that enhance the system features.

•

Screen display and driver options may not be the same for different
operating system versions.

•

The contents of the support CD are subject to change at any time without
notice. Visit the ASUS website for updates.

3-2 Chapter 3: Starting up

3.3.1 Running the support CD

To begin using the support CD, place the CD in your optical drive. The CD
automatically displays the Drivers menu if Autorun is enabled in your computer.

Click an icon to display
support CD/motherboard
information

Click an item to install

If Autorun is NOT enabled in your computer, browse the contents of the

support CD to locate the le ASSETUP.EXE from the BIN folder. Double-click

the ASSETUP.EXE to run the CD.

ASUS InstAll - Drivers Installation Wizard

Automatically installs all the necessary drivers for this motherboard.

IntelChipset Inf Update Program

Installs the Intel® Chipset Inf Update Program. Please install Win2000 Service

Pack 4/WinXP Service Pack1 rst.

IntelGraphics Accelerator Driver

Installs Intel® Graphics Accelerator Driver.

SoundMAX ADI Audio Driver

Allows you to install the SoundMAX ADI audio driver.

Realtek RTL8139D 10/100M Fast Ethernet Adapter Driver

Installs the Realtek® RTL8139D 10/100M Fast Ethernet Adapter Driver.

3-3ASUS P1/P2-P5945GCX

3.3.2 Utilities menu

The Utilities menu shows the applications and other software that the
motherboard supports.

ASUS InstAll-Installation Wizard for Utilities

Installs the ASUS InstAll-Installation Wizard Utilities.

ASUS PC Probe II

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 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 5-8 for details.

ADOBE Acrobat Reader V7.0

Installs the Adobe® Acrobat® Reader V7.0 that allows you to open, view, and print
documents in Portable Document Format (PDF).

Microsoft DirectX 9.0c

Installs the Microsoft® DirectX 9.0c utility.

Anti-Virus Utility

Installs Anti-virus utility.

ASUS Screen Saver

Installs the ASUS Screen Saver.

3-4 Chapter 3: Starting up

3.3.3 ASUS Contact information

Click the Contact tab to display the ASUS contact information. You can also nd
this information on the inside front cover of this user guide.

3-5ASUS P1/P2-P5945GCX

3.4 Software information

Most of the applications in the support CD have wizards that will conveniently
guide you through the installation. View the online help or readme le that came

with the software for more information.

ASUS PC Probe II

PC Probe II is a utility that monitors the computer’s vital components and alerts
you of any problem with these components. PC Probe II senses fan rotations, CPU

temperature, and system voltages, among others. PC Probe II is software-based,

allowing you to start monitoring your computer the moment you turn it on. With
this utility, you are assured that your computer is always at a healthy operating
condition.

Installing PC Probe II

To install PC Probe II on your computer:

1. Place the support CD to the optical drive. The
appears if your computer has an enabled Autorun feature.

If Autorun is not enabled in your computer, browse the contents of the support

CD to locate the setup.exe le from the ASUS PC Probe II folder. Double-click
the setup.exe le to start installation.

2. Click the Utilities tab, then click ASUS PC Probe II.

3. Follow the screen instructions to complete installation.

Drivers installation tab

Launching PC Probe II

You can launch the PC Probe II right after installation or anytime from the
Windows® desktop.

To launch the PC Probe II from the Windows® desktop, click Start > All Programs
> ASUS > PC Probe II. The PC Probe II main window appears.

After launching the application, the PC Probe II icon appears in the Windows®
taskbar. Click this icon to close or
restore the application.

Using PC Probe II

Main window

The PC Probe II main window allows
you to view the current status of
your system and change the utility

conguration. By default, the main window

displays the Preference section. You can
close or restore the Preference section
by clicking on the triangle on the main
window right handle.

Click to close the
Preference panel

3-6 Chapter 3: Starting up

Button Function

Opens the Conguration window

Opens the Report window

Opens the Desktop Management Interface window

Opens the Peripheral Component Interconnect window

Opens the Windows Management Instrumentation window

Opens the hard disk drive, memory, CPU usage window

Shows/Hides the Preference section

Minimizes the application

Closes the application

Sensor alert

When a system sensor detects a problem, the main window right handle turns red,
as the illustrations below show.

When displayed, the monitor panel for that sensor also turns red. Refer to the

Monitor panels section for details.

Preferences

You can customize the application using the

Preference section in the main window. Click
the box before each preference to activate or
deactivate.

3-7ASUS P1/P2-P5945GCX

Hardware monitor panels

The hardware monitor panels display the current value of a system sensor such as
fan rotation, CPU temperature, and voltages.

The hardware monitor panels come in two display modes: hexagonal (large) and
rectangular (small). When you check the Enable Monitoring Panel option from
the Preference section, the monitor panels appear on your computer’s desktop.

Small display

Large display

Changing the monitor panels position

To change the position of the monitor panels on the desktop, click
the arrow down button of the Scheme options, then select another
position from the list box. Click OK when nished.

Moving the monitor panels

All monitor panels move together using a magnetic effect. If you want
to detach a monitor panel from the group, click
the horseshoe magnet icon. You can now move
or reposition the panel independently.

Adjusting the sensor threshold value

You can adjust the sensor threshold value in
the monitor panel by clicking the arrow buttons. You can also adjust the threshold
values using the Cong window.

You cannot adjust the sensor threshold
values in a small monitoring panel.

Click to

increase value

Click to

decrease

value

3-8 Chapter 3: Starting up

Monitoring sensor alert

The monitor panel turns red when a component value exceeds or is lower than the
threshold value. Refer to the illustrations below.

Small display

Large display

WMI browser

Click to display the
WMI (Windows Management
Instrumentation) browser. This
browser displays various Windows®
management information. Click an
item from the left panel to display on
the right panel. Click the plus sign (+)
before WMI Information to display the
available information.

You can enlarge or reduce the browser size by dragging the bottom right corner

of the browser.

DMI browser

Click to display the DMI
(Desktop Management Interface)
browser. This browser displays various
desktop and system information.
Click the plus sign (+) before DMI
Information to display the available
information.

3-9ASUS P1/P2-P5945GCX

PCI browser

Click to display the PCI
(Peripheral Component Interconnect)
browser. This browser provides
information on the PCI devices
installed on your system. Click the plus
sign (+) before the PCI Information
item to display available information.

Usage

The Usage browser displays real-time information on the CPU, hard disk drive
space, and memory usage. Click to display the Usage browser.

CPU usage

The CPU tab displays real-time CPU
usage in line graph representation.

If the CPU has an enabled Hyper-

Threading, two separate line graphs
display the operation of the two logical
processors.

Hard disk drive space usage

The Hard Disk tab displays the used
and available hard disk drive space.
The left panel of the tab lists all logical
drives. Click a hard disk drive to display
the information on the right panel. The
pie chart at the bottom of the window
represents the used (blue) and the
available HDD space.

3-10 Chapter 3: Starting up

Memory usage

The Memory tab shows both used
and available physical memory. The
pie chart at the bottom of the window
represents the used (blue) and the
available physical memory.

Conguring PC Probe II

Click to view and adjust the sensor threshold values.

The Cong window has two tabs: Sensor/Threshold and Preference. The
Sensor/Threshold tab enables you to activate the sensors or to adjust the sensor
threshold values. The Preference tab allows you to customize sensor alerts,

change temperature scale, or enable the Q-Fan feature.

Loads the default

threshold values for

each sensor

Applies your

changes

Cancels or

ignores your

changes

Loads your saved

conguration

Saves your

conguration

3-11ASUS P1/P2-P5945GCX

3-12 Chapter 3: Starting up

Chapter 4

This chapter gives information about
the motherboard that comes with the
system. This chapter includes the
motherboard layout, jumper settings,
and connector locations.

ASUS P1/P2-P5945GCX

Motherboard info

4.1 Introduction

33.0cm(13in)

LGA775

CR2032 3V

Lithium Cell

CMOS Power

BUZZER

SB_PWR

PANEL

MS_CON

RSTCON

RTS5111

VIA

VT6308P

CF_CON

26.4cm(10.4in)

SD_CON

IE1394_2

PWRSW

USB56

FP_AUDIO

(64 b

it,
240

-pin

module)

DDR2 DIMM_A1

(6
4 b

it,240

-pin m

odule)

DDR2 DIMM_B1

R

Intel ICH7

Intel

MCH945GC

4Mb

BIOS

Super I/O

CLRTC

USBPW78

USB7

PRI_IDE

SATA1

EATXPWR

PCI1

KBPWR

USBPW12

USBPW34

PS/2KBMS

T: Mouse

B: Keyboard

USB12

USB34

VGA_DVI

SPDIF_OUT

COM1

BACK_AUDIO

ADI

AD1988B

CPU_FAN

ATX12V

CD

Cypress

CY28551

The P1/P2-P5945GCX barebone system comes with an ASUS motherboard. This

chapter provides technical information about the motherboard for future upgrades

or system reconguration.

4.2 Motherboard layout

4-2 Chapter 4: Motherboard info

4.3 Jumpers

R

Clear RTC RAM

CLRTC

Normal

Clear RTC

(Default)

1 2

2 3

1. Clear RTC RAM (CLRTC)

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 the CMOS, which includes the 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 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.

4-3ASUS P1/P2-P5945GCX

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

R

USB Device Wake Up

3
2

2
1

USBPW78

+5V

(Default)

+5VSB

3
2

2
1

USBPW34

+5V

(Default)

+5VSB

3

2

2

1

USBPW12

+5V

(Default)

+5VSB

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 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.

4-4 Chapter 4: Motherboard info

3. Keyboard power (3-pin KBPWR)

R

Keyboard Power Setting

KBPWR

3

2

2

1

+5V

(Default)

+5VSB

R

SATA Connectors

GND

RSATA_TXP1

RSATA_TXN1

GND

RSATA_RXP1

RSATA_RXN1

GND

SATA1

This jumper allows you to enable or disable the keyboard wake-up feature.
Set this jumper to pins 2-3 (+5VSB) if you wish 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.

4.4 Connectors

1. Serial ATA connectors

The connector is for the Serial ATA signal cables for Serial ATA hard disk
drives.

Important notes on Serial ATA:

• You must install Windows
Service Pack1 before using Serial ATA hard disk drives.

• When using the connectors in
hard disk drive to the SATA1 connector.

®

2000 Service Pack 4 or the Windows® XP

Standard IDE mode, connect the primary (boot)

4-5ASUS P1/P2-P5945GCX

2 IDE connectors (40-1 pin PRI_IDE)

R

IDE Connector

NOTE: Orient the red markings

(usually zigzag) on the ID
ribbon cable to PIN 1.

PRI_IDE

PIN1

The onboard IDE connectors are for Ultra DMA 100/66/33 signal cable(s).
There are three connectors on each Ultra DMA 100/66/33 signal cable:

blue, black, and gray. Connect the blue connector to the motherboard’s IDE

connector, then select one of the following modes to congure your device(s).

Drive jumper
setting

Single device Cable-Select or

Master

Two devices Cable-Select Master

Master
Slave

Mode Cable of
device(s)

- Black

Slave

Master
Slave

Cable connector

Black
Gray

Black or gray

• 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 100/66/33 IDE devices.

If any device jumper is set as “Cable-Select”, make sure all other device

jumpers have the same setting.

4-6 Chapter 4: Motherboard info

3. CPU Fan connector (3-pin CPU_FAN)

R

CPU FAN Connector

CPU_FAN

GND

+12V

Tachometer

R

USB7 Connector

USB7

GND
USB LP7+
USB LP7­USBPW78

The fan connector support cooling fans of 350 mA~740 mA (8.88 W max.) or a
total of 1 A~2.22 A (26.64 W max.) at +12V. Connect the fan cable to the fan

connector on the motherboard, making sure that the black wire of each cable
matches the ground pin of the connector.

Do not forget to connect the fan cables to the fan connectors. Insufcient air
ow inside the system may damage the motherboard components. These are
not jumpers! Do not place jumper caps on the fan connectors!

4. USB connector (5-1 pin USB7)

This connector is for USB 2.0 ports. Connect the 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
specication that supports up to 480 Mbps connection speed.

Never connect a 1394 cable to the USB connectors. Doing so will damage the

motherboard!

The USB module is purchased separately.

4-7ASUS P1/P2-P5945GCX

5. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

R

ATX Power Connector

+12V DC

GND

+12V DC

GND

ATX12V

+3 Volts

+3 Volts

Ground

+5 Volts

+5 Volts

Ground

Ground

Power OK

+5V Standby

+12 Volts

-5 Volts

+5 Volts

+3 Volts

-12 Volts

Ground

Ground

Ground

PSON#

Ground

+5 Volts

+12 Volts

+3 Volts

+5 Volts

Ground

EATXPWR

R

CD Connector

CD

(black)

Right Audio Channel

Left Audio Channel

Ground

Ground

These connectors are for ATX power supply plugs. The plugs from the power

supply are designed to t these connectors in only one orientation. Find the
proper orientation and push down rmly until the connectors completely t.

•

Do not forget to connect the 4-pin ATX +12 V power plug; otherwise, the

system will not boot.

• Use of a PSU with a higher power output is recommended when

conguring a system with more power-consuming devices. The system

may become unstable or may not boot up if the power is inadequate.

• Make sure that your power supply unit (PSU) can provide at least the
minimum power required by your system.

6. Internal audio connectors (4-pin CD)

These connectors allow you to receive stereo audio input from sound sources

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

Enable the CD-IN function in the audio utility when using this connector.

4-8 Chapter 4: Motherboard info

7. Back audio connector (20-1 pin Back_Audio Connector)

R

Digital Audio Connector

+5V

SPDIFOUT

GND

SPDIF_OUT

R

Back_Audio Connector

BACK_AUDIO

BCAZ LIN1 L

BCAZ LIN1 R

SENSE LIN1

BCAZ FRONT L

BCAZ FRONTR

SENSE FRONT

BCAZ MIC1L

BCAZ MIC1R

SENSE MIC1

BCAZ CEN L

BCAZ LEF R

SENSE CN1

BCAZ SURBL

BCAZ SURBR

SENSE SURB

BCAZ SUR L

BCAZ SUR R

SENSE SUR

AGND_A

We recommend that you connect a high-denition front panel audio module to
this connector to avail of the motherboard’s high-denition audio capability.

8. Digital audio connector (4-1 pin SPDIF_OUT)

This connector is for an additional Sony/Philips Digital Interface (S/PDIF)
port(s). Connect the S/PDIF module cable to this connector, then install the
module to a slot opening at the back of the system chassis.

The S/PDIF module is purchased separately.

4-9ASUS P1/P2-P5945GCX

9. System panel connector (6-1 pin PANEL)

R

System Panel Connector

NEL

HD_LED+

PLED+

HD_LED-

PLED-

PA

Refer to the connector description below for details.

• 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.

• Hard disk drive activity (2-pin HDLED)

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 ashes when data is

read from or written to the HDD.

4-10 Chapter 4: Motherboard info

Chapter 5

This chapter tells how to change
system settings through the BIOS
Setup menus and describes the BIOS
parameters.

BIOS setup

1

5.1 Managing and updating your BIOS

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

1.

ASUS EZ Flash: Updates the BIOS using a oppy disk, or the motherboard
support CD during POST.

ASUS AFUDOS: Updates the BIOS using a bootable oppy disk in DOS

2.

mode.

ASUS CrashFree BIOS 2: Updates the BIOS using a bootable oppy disk or

3.

the motherboard support CD when the BIOS le fails or gets corrupted.

ASUS Update: Updates the BIOS in Windows® environment.

4.

Refer to the corresponding sections for details on these utilities.

Save a copy of the original motherboard BIOS le to a bootable oppy disk in

case you need to restore the BIOS in the future. Copy the original motherboard
BIOS using the ASUS Update or AFUDOS utilities.

5-2 Chapter 5: BIOS setup5-2

5.1.1 ASUS 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 oppy 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 le for
the motherboard and rename the same to P5945GCX.ROM.

2. Save the BIOS le to a oppy disk, then restart the system.

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

EZFlash starting BIOS update

Checking for oppy...

4. Insert the oppy disk that contains the BIOS le to the oppy disk drive.
When the correct BIOS le is found, EZ Flash performs the BIOS update

process and automatically reboots the system when done.

EZFlash starting BIOS update

Checking for oppy...
Floppy found!
Reading le “P5945GCX.rom”. Completed.

Start erasing.......|

Start programming...|
Flashed successfully. Rebooting.

• Do not shut down or reset the system while updating the BIOS to prevent

system boot failure!

• A “Floppy not found!” error message appears if there is no oppy disk in the
drive. A “P5945GCX.ROM not found!” error message appears if the correct
BIOS le is not found in the oppy disk. Make sure that you rename the
BIOS le to P5945GCX.ROM.

5-3ASUS P1/P2-P5945GCX

5.1.2 AFUDOS utility

The AFUDOS utility allows you to update the BIOS le in DOS environment using
a bootable oppy disk with the updated BIOS le. This utility also allows you to
copy the current BIOS le that you can use as backup when the BIOS fails or gets

corrupted during the updating process.

Copying the current BIOS

To copy the current BIOS le using the AFUDOS utility:

• Make sure that the oppy disk is not write-protected and has at least 600
KB free space to save the le.

• 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 oppy disk you created earlier.

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

afudos /o[lename]

where the [lename] is any user-assigned lename not more than eight
alphanumeric characters for the main lename and three alphanumeric

characters for the extension name.

A:\>afudos /oOLDBIOS1.ROM

Main lename

Extension name

3. Press <Enter>. The utility copies the current BIOS le to the oppy disk.

A:\>afudos /oOLDBIOS1.ROM

AMI Firmware Update Utility - Version 1.19 V2.26(06.08.28BB))

Copyright (C) 2003 American Megatrends, Inc. All rights reserved.

Reading ash ..... done

A:\>

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

5-4 Chapter 5: BIOS setup

Updating the BIOS le

To update the BIOS le using the AFUDOS utility:

1. Visit the ASUS website (www.asus.com) and download the latest BIOS le for
the motherboard. Save the BIOS le to a bootable oppy disk.

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

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

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

afudos /i[lename]

where [lename] is the latest or the original BIOS le on the bootable oppy

disk.

A:\>afudos /iP5945GCX.ROM

4. The utility reads the le and starts updating the BIOS.

A:\>afudos /iP5945GCX.ROM

AMI Firmware Update Utility - Version 1.19 V2.26(06.08.28BB))
Copyright (C) 2003 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS

Reading le ..... done

Reading ash .... done

Search bootblock version

Advance Check........

Erasing ash .... done

Writing ash .... 0x0008CC00 (9%)

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

system boot failure!

5-5ASUS P1/P2-P5945GCX

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 /iP5945GCX.ROM

AMI Firmware Update Utility - Version 1.19 V2.26(06.08.28BB)
Copyright (C) 2003 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS

Reading le ..... done

Reading ash .... done

Search bootblock version

Advance Check.........

Erasing ash ..... done

Writing ash ..... done

Verifying ash ... done

Please restart your computer

A:\>

5.1.3 ASUS CrashFree BIOS 2 utility

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

• Prepare the motherboard support CD or the oppy disk containing the

updated motherboard BIOS before using this utility.

• Make sure that you rename the original or updated BIOS le in the oppy
disk to P5945GCX.ROM.

Recovering the BIOS from a oppy disk

To recover the BIOS from a oppy disk:

1. Turn on the system.

2. Insert the oppy disk with the original or updated BIOS le to the oppy disk

drive.

5-6 Chapter 5: BIOS setup

3. The utility displays the following message and automatically checks the

oppy disk for the original or updated BIOS le.

Bad BIOS checksum. Starting BIOS recovery...

Checking for oppy...

When found, the utility reads the BIOS le and starts ashing the corrupted

BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...
Floppy found!
Reading le “P5945GCX.ROM”. Completed.
Start ashing...

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.

Recovering the BIOS from the support CD

To recover the BIOS from the support CD:

1. Remove any oppy disk from the oppy 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

oppy disk for the original or updated BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...

When no oppy disk is found, the utility automatically checks the optical drive

for the original or updated BIOS le. The utility then updates the corrupted
BIOS le.

Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...
Floppy not found!
Checking for CD-ROM...
CD-ROM found!
Reading le “P5945GCX.ROM”. Completed.
Start ashing...

5-7ASUS P1/P2-P5945GCX

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 le.

5.1.4 ASUS Update utility

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:

• Save the current BIOS le

• Download the latest BIOS le from the Internet

• Update the BIOS from an updated BIOS le

• Update the BIOS directly from the Internet, and

• View the BIOS version information.

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

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

Installing ASUS Update

To install ASUS Update:

1. Place the support CD in the optical drive. The Drivers menu appears.

2. Click the

screen menu.

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

5-8 Chapter 5: BIOS setup

Utilities tab, then click ASUS Update. See page 3-4 for the Utilities

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

Updating the BIOS through the Internet

To update the BIOS through the Internet:

1. Launch the ASUS Update utility from the Windows

> Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update
main window appears.

®

desktop by clicking Start

2. Select Update BIOS from
the Internet option from the

drop-down menu, then click Next.

3. Select the ASUS FTP site nearest

you to avoid network trafc, or

click Auto Select. Click Next.

5-9ASUS P1/P2-P5945GCX

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 le

To update the BIOS through a BIOS le:

1. Launch the ASUS Update utility from the Windows
> Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update
main window appears.

2. Select

Update BIOS from a le

option from the drop-down menu,

then click Next.

®

desktop by clicking Start

3. Locate the BIOS le from the Open
window, then click Open.

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

5-10 Chapter 5: BIOS setup

5.2 BIOS setup program

This motherboard supports a programmable Low-Pin Count (LPC) chip that you

can update using the provided utility described in section “5.1 Managing and
updating your BIOS.”

Use the BIOS Setup program when you are installing a motherboard, reconguring
your system, or prompted to“Run Setup.” This section explains how to congure

your system using this utility.

Even if you are not prompted to use the Setup program, you can change the

conguration 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 recongure your system using the BIOS Setup program so that the
computer can recognize these changes and record them in the CMOS RAM of the

LPC chip.

The LPC chip 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> during the Power-On Self-Test (POST) to enter the Setup utility. Otherwise,

POST continues with its test routines.

If you wish to enter Setup after POST, reboot the system by doing any of the
following procedures:

• Restart using the OS standard shut-down procedure.

• Press <Ctrl>+<Alt>+<Del> simultaneously.

• Press the reset button on the system chassis.

• Press the power button to turn the system off then back on.

Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to
force reset from a running operating system can cause damage to your data

or system. We recommend to always shut-down the system properly from the

operating system.

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.

• 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 Load Default Settings item under the

Exit Menu. See section “5.7 Exit 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 le for

this motherboard.

5-11ASUS P1/P2-P5945GCX

5.2.1 BIOS menu screen

Menu bar

System Time [21:01:35]
System Date [Fri 11/09/2007]

Primary IDE Master :[Not Detected]

Primary IDE Slave :[Not Detected]

SATA1 :[Not Detected]

IDE Conguration

System Information

Sub-menu items

Conguration eldsMenu items

General help

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

Use [+] or [-] to
congure the System
time.

Navigation keys

5.2.2 Menu bar

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

Main For changing the basic system conguration

Advanced For changing the advanced system settings

Power For changing the advanced power management (APM)

conguration

Boot For changing the system boot conguration

Exit For selecting the exit options and loading default

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.

5.2.3 Navigation 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.

5-12 Chapter 5: BIOS setup

5.2.4 Menu items

The highlighted item on the menu

bar displays the specic items for that

menu. For example, selecting Main
shows the Main menu items.

The other items (Advanced, Power,
Boot and Exit) on the menu bar have
their respective menu items.

System Time [16:37:21]
System Date [Wed,03/15/2007]

SATA 1 : [Not Detected]
SATA 2 : [Not Detected]
SATA 3 : [Not Detected]

IDE Conguration
System Information

Main menu items

5.2.5 Sub-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>.

5.2.6 Conguration elds

These elds show the values for the menu items. If an item is
user-congurable, you can change the value of the eld opposite the item. You
cannot select an item that is not user-congurable.

A congurable eld is enclosed in brackets, and is highlighted when selected. To
change the value of a eld, select it then press <Enter> to display a list of options.
Refer to “5.2.7 Pop-up window.”

5.2.7 Pop-up window

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

5.2.8 Scroll bar

A scroll bar appears on the right side
of a menu screen when there are items

that do not t on the screen. Press the

Up/Down arrow keys or <Page Up>
/<Page Down> keys to display the other
items on the screen.

5.2.9 General help

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

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

Pop-up window

Scroll bar

5-13ASUS P1/P2-P5945GCX

5.3 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 “5.2.1 BIOS menu screen” for information on the menu screen

items and how to navigate through them.

System Time [16:37:21]

System Date [Fri,11/09/2007]

Primary IDE Master :[Not Detected]

Primary IDE Slave :[Not Detected]

SATA1 :[Not Detected]

IDE Conguration

System Information

5.3.1 System Time [xx:xx:xx]

Allows you to set the system time.

5.3.2 System Date [Day xx/xx/xxxx]

Allows you to set the system date.

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

Use [+] or [-] to
congure the System
time.

5-14 Chapter 5: BIOS setup

5.3.3 Primary IDE Master/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.

Exit

Primary IDE Master

Device : Not Detected

Type [Auto]

LBA/Large Mode [Auto]

Block(Multi-sector Transfer) M [Auto]

PIO Mode [Auto]

DMA Mode [Auto]

Smart Monitoring [Auto]

32Bit Data Transfer [Enabled]

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-congurable. These items show

Not Detected if no IDE device is installed in the system.

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 specically conguring a
CD-ROM drive. Select ARMD (ATAPI Removable Media Device) if your device
is either a ZIP, LS-120, or MO drive. Conguration options: [Not Installed] [Auto]
[CDROM] [ARMD]

Select the type
of device connected
to the system.

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. Conguration options: [Disabled] [Auto]

Block (Multi-sector Transfer) Mode [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.

Conguration options: [Disabled] [Auto]

5-15ASUS P1/P2-P5945GCX

PIO Mode [Auto]

Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]

DMA Mode [Auto]

Selects the DMA mode. Conguration options: [Auto]

SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology.

Conguration options: [Auto] [Disabled] [Enabled]

32Bit Data Transfer [Enabled]

Enables or disables 32-bit data transfer.
Conguration options: [Disabled] [Enabled]

5.3.4 SATA1

While entering Setup, the BIOS automatically detects the presence of Serial ATA

device. There is a separate sub-menu for each SATA device. Select a device item

then press <Enter> to display the SATA device information.

Exit

SATA1

Device : Not Detected

LBA/Large Mode [Auto]

Block(Multi-sector Transfer) M [Auto]

PIO Mode [Auto]

DMA Mode [Auto]

Smart Monitoring [Auto]

32Bit Data Transfer [Enabled]

Select the type
of device connected
to the system.

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-congurable. These items show

Not Detected if no SATA device is installed in the system.

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. Conguration options: [Disabled] [Auto]

5-16 Chapter 5: BIOS setup

Block (Multi-sector Transfer) Mode [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.

Conguration options: [Disabled] [Auto]

PIO Mode [Auto]

Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]

DMA Mode [Auto]

Selects the DMA mode. Conguration options: [Auto]

SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology.

Conguration options: [Auto] [Disabled] [Enabled]

32Bit Data Transfer [Enabled]

Enables or disables 32-bit data transfer.
Conguration options: [Disabled] [Enabled]

5.3.5 IDE Conguration

The items in this menu allow you to set or change the congurations for the IDE

devices installed in the system. Select an item then press <Enter> if you want to

congure the item.

IDE Conguration

Onboard IDE Operate Mode [Enhanced Mode]

Enhanced Mode Support On [S-ATA]
IDE Detect Time Out (Sec) [35]

Select the time out
value for detecting
ATA/ATAPI device)s).

Onboard IDE Operate Mode [Enhanced Mode]

Disables or 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.

Conguration options: [Disabled] [Compatible Mode] [Enhanced Mode]

5-17ASUS P1/P2-P5945GCX

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 only if you did not install any Serial ATA device.

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-ATA. Conguration options: [S-ATA+P-ATA] [S-ATA] [P-ATA]

IDE Detect Time Out [35]

Selects the time out value for detecting ATA/ATAPI devices.

Conguration options: [0] [5] [10] [15] [20] [25] [30] [35]

5.3.6 System Information

This menu gives you an overview of the general system specications. The BIOS

automatically detects the items in this menu.

AMIBIOS

Version : 0201
Build Date : 08/22/07

Processor

Type : Intel(R) Core (TM) CPU 6300 @ 1.86 GHz
Speed : 1866 MHz
Count : 2

System Memory

Total : 512 MB
Appropriated : 8MB
Available : 512 MB

AMI BIOS

Displays the auto-detected BIOS information.

Processor

Displays the auto-detected CPU specication.

System Memory

Displays the auto-detected system memory.

5-18 Chapter 5: BIOS setup

5.4 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

eld values can cause the system to malfunction.

Exit

JumperFree Conguration

USB Conguration

CPU Conguration

Chipset

Onboard Devices Conguration
PCIPnP

5.4.1 JumperFree Conguration

Advanced

Spread Spectrum [Disabled]

AI Overclocking [Standard]
PCI Express Frequency [Auto]

BIOS SETUP UTILITY

Adjust system
frequency/voltage

CPU (PLL1) Spread
Spectrum Selection

Spread Spectrum [Disabled]

Allows you to enable or disable the clock generator spread spectrum.

Conguration options: [Disabled] [Enabled].

AI Overclocking [Standard]

Allows selection of CPU overclocking options to achieve desired CPU internal

frequency. Select either one of the preset overclocking conguration options:

Manual - allows you to individually set overclocking parameters.

Standard - loads overclocking proles with optimal parameters for stability when

overclocking.

5-19ASUS P1/P2-P5945GCX

The following item appears only when you set the AI Overclocking item to

[Manual].

CPU Frequency [XXX]

Displays the frequency sent by the clock generator to the system bus and PCI bus.

The value of this item is auto-detected by the BIOS. Use the <+> and <-> keys to

adjust the CPU frequency. You can also type the desired CPU frequency using the

numeric keypad. The values range from 133 to 400. Refer to the table below for

the correct Front Side Bus and CPU External Frequency settings.

FSB/CPU External Frequency Synchronization

Front Side Bus CPU External Frequency

FSB 1067

FSB 800

FSB 667 133 MHz

266 MHz

200 MHz

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency.
Conguration options: [Auto] [DDR2-400MHz] [DDR2-533 MHz] [DDR2-667 MHz]

Selecting a very high DRAM frequency may cause the system to become

unstable! If this happens, revert to the default setting.

PCI Express Frequency [Auto]

Allows you to select PCI express frequency. Conguration options: [Auto] [100]
[101] [102] [103] [104] [105] ~ [112] [113] [114]

5-20 Chapter 5: BIOS setup

5.4.2 USB Conguration

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

USB Conguration

Module Version - 2.24.0-F.4

USB Devices Enabled:

None

USB Function [Enabled]

Legacy USB Support [Auto]
USB 2.0 Controller [Enabled]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-off [Enabled]

The Module Version and USB Devices Enabled items show the

auto-detected values. If no USB device is detected, the item shows None.

Enables USB host
controllers.

USB Function [Enabled]

Allows you to enable or disable the USB host controllers.

Conguration options: [Enabled] [Disabled]

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.

Conguration options: [Disabled] [Enabled] [Auto]

USB 2.0 Controller [Enabled]

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

USB 2.0 Controller Mode [HiSpeed]

Allows you to set the USB 2.0 controller mode to HiSpeed (480 Mbps) or
FullSpeed (12 Mbps). Conguration options: [FullSpeed] [HiSpeed]

BIOS EHCI Hand-off [Enabled]

Allows you to enable or disable the enhanced host controller interface (EHCI)

hand-off support. This is a workaround for operating systems without EHCI hand-

off support. The ECHI ownership change should be claimed by the EHCI driver.

Congutation options: [Disabled] [Enabled]

5-21ASUS P1/P2-P5945GCX

5.4.3 CPU Conguration

Select Screen

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

Select Screen

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

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

automatically detects.

Congure advanced CPU settings

Manufacturer: Intel

Brand String:

Frequency : 1866MHz
FSB Speed : 1066MHz

Cache L1 : 32 KB
Cache L2 : 2048 KB
Cache L3 : 0 KB

Ratio Status: Unlocked (Max:07, Min: 06)
Ratio Actual Value: 7

Ratio CMOS Setting: [ 7]
VID CMOS Setting: [ 62]

Microcode Updation [Enabled]
Max CPUID Value Limit [Disabled]
Execute Disable Function [Disabled]
Enhanced C1 Control [Auto]
CPU Internal Thermal Control [Auto]

Virtualization Technology [Enabled]
EIST [Enabled]

Intel(R) Core(TM) CPU 6300 @ 1.86GHz

Sets the ratio between
CPU Core Clock and the
FSB Frequency.
NOTE: If an invalid
ratio is set in CMOS

then actual and

setpoint values may
differ.

Ratio CMOS Setting [ 7]

Sets the ratio between the CPU Core Clock and the Front Side Bus frequency. The

default value of this item is auto-detected by BIOS.

VID CMOS Setting [62]

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

Microcode Updation [Enabled]

Allows you to enable or disable the microcode updation.

Conguration options: [Disabled] [Enabled]

Max CPUID Value Limit [Disabled]

Allows you to determine whether to limit CPUID maximum value. Set this item to

[Disabled] for Windows XP operating system; set this item to [Enabled] for legacy
operating system such as Windows NT4.0..
Conguration options: [Disabled] [Enabled]

5-22 Chapter 5: BIOS setup

Execute Disable Function [Disabled]

Enables or disables Intel® Execute Disable Bit function. This function enhances
protection of your computer, reducing exposure to viruses and malicious buffer

overow attacks when working with its supporting software and system.
Conguration options: [Disabled] [Enabled]

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. Conguration options: [Auto] [Disabled]

CPU Internal Thermal 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. Conguration options: [Auto] [Disabled]

Virtualization Technology [Enabled]

Allows you to enable or disable the Virtualization Technology. Virtualization

enhanced by Intel® Virtualization Technology allows a platform to run multiple

operating systems and applications in independent partitions. With virtualization,
one computer system can function as multiple virtual systems. Conguration
options: [Disabled] [Enabled]

EIST [Enabled]

Allows you to enable or diable the Enhanced Intel SpeedStep Technology (EIST).

Conguration options: [Enabled] [Disabled]

5-23ASUS P1/P2-P5945GCX

5.4.4 Chipset

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

Congure DRAM Timing by SPD [Enabled]

DRAM Frequency [Auto]

Graphic Adapter Priority [PCI/Int-VGA]
Internal Graphics Mode Select [Enabled, 8MB]

Graphic Memory Type [Auto]

Enable or disable
Congure DRAM Timing
by SPD

Congure DRAM Timing by SPD [Enabled]

Allows you to enable or disable congure DRAM timing by SPD.
Conguration options: [Disabled] [Enabled]

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency.
Conguration options: [Auto] [DDR2-400MHz] [DDR2-533 MHz] [DDR2-667 MHz]

Selecting a very high DRAM frequency may cause the system to become

unstable! If this happens, revert to the default setting.

Graphic Adapter Priority [PCI/Int-VGA]

Allows selection of the graphics controller to use as primary boot device.

Conguration options: [Internal VGA] [PCI/Int-VGA]

Internal Graphics Mode Select [Enabled, 8MB]

Sets the internal graphics mode. Conguration options: [Disabled] [Enabled, 1MB]
[Enabled, 8MB]

Graphics memory type [Auto]

Sets the graphics memory type. Conguration options: [Auto] [DVMT] [FIX]
[DVMT+FIX]

5-24 Chapter 5: BIOS setup

5.4.5 Onboard Devices Conguration

Congure Win627EHG Super IO Chipset

HD Audio Controller [Enabled]

Onboard 1394 Controller [Enabled]
LAN Option ROM [Disabled]
Serial Port1 Address [3F8/IRQ4]

Enable or disable
High Denition Audio

Controller

HD Audio Controller [Enabled]

Enables or disables the Azalia/AC’97 CODEC.
Conguration options: [Enabled] [Disabled]

Onboard 1394 Controller [Enabled]

Enables or disables the onboard IEEE 1394a controller.
Conguration options: [Enabled] [Disabled]

LAN Option 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.

Conguration options: [Disabled] [Enabled]

Serial Port1 Address [3F8/IRQ4]

Allows you to select the Serial Port1 base address.

Conguration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

5-25ASUS P1/P2-P5945GCX

5.4.6 PCI 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

eld 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]

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]

No: lets the BIOS

congure all the
devices in the system.
YES: lets the
operating system
congure Plug and
Play (PnP) devices not
required for boot if
your system has a Plug
and Play operating
system.

Plug and Play O/S [No]

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

PCI Latency Timer [64]

Allows you to select the value in units of PCI clocks for the PCI device latency timer

register. Conguration options: [32] [64] [96] [128] [160] [192] [224] [248]

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. Conguration options: [Yes] [No]

Palette Snooping [Disabled]

When set to [Enabled], the palette snooping feature informs the PCI devices that

an ISA graphics device is installed in the system so that the latter can function

correctly. Conguration options: [Disabled] [Enabled]

5-26 Chapter 5: BIOS setup

IRQ-XX assigned to [PCI Device]

When set to [PCI Device], the specic IRQ is free for use of PCI/PnP devices.
When set to [Reserved], the IRQ is reserved for legacy ISA devices.
Conguration options: [PCI Device] [Reserved]

5.5 Power menu

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

display the conguration options.

Exit

Suspend Mode [Auto]

ACPI 2.0 Support [No]
ACPI APIC Support [Enabled]

APM Conguration
Hardware Monitor

5.5.1 Suspend Mode [Auto]

Allows you to select the Advanced Conguration and Power Interface (ACPI) state
to be used for system suspend. Conguration options:

[S1 (POS) Only] - Enables the system to enter the ACPI S1 (Power on Suspend)
sleep state. In S1 sleep state, the system appears suspended and stays in a
low power mode. The system can be resumed at any time.
[S3 Only] - Enables the system to enter the ACPI S3 (Suspend to RAM) sleep
state. In S3 sleep state, the system appears to be off and consumes less
power than in the S1 state. When signaled by a wake-up device or event, the
system resumes to its working state exactly where it was left off.
[Auto] - Detected by OS.

Select the ACPI state
used for System
Suspend.

5.5.2 ACPI 2.0 Support [Disabled]

Allows you to add more tables for Advanced Conguration and Power Interface
(ACPI) 2.0 specications.
Conguration options: [Disabled] [Enabled]

5-27ASUS P1/P2-P5945GCX

5.5.3 ACPI APIC Support [Enabled]

Allows you to enable or disable the Advanced Conguration and Power Interface
(ACPI) support in the Application-Specic Integrated Circuit (ASIC). When set

to Enabled, the ACPI APIC table pointer is included in the RSDT pointer list.

Conguration options: [Disabled] [Enabled]

5.5.4 APM Conguration

APM Conguration

Power Button Mode [On/Off]

Restore on AC Power Loss [Power Off]
Power On By RTC Alarm [Disabled]
Power On By External Modems [Disabled]
Power On By PS/2 Keyboard [Disabled]
Power On By PS/2 Mouse [Disabled]

<Enter> to select

whether or not to
restart the system
after AC power loss.

Power Button Mode [On/Off]

Allows you to set the power button mode.Conguration options: [On/Off] [Suspend]

Restore on AC Power Loss [Power Off]

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. Conguration options: [Power Off] [Power On]
[Last State]

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. Conguration options: [Disabled]
[Enabled]

5-28 Chapter 5: BIOS setup

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.
Conguration 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 rst

try. Turning an external modem off and then back on while the computer is off

causes an initialization string that turns the system on.

Power On By PS/2 Keyboard [Disabled]

Allows you to use specic 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.

Conguration options: [Disabled] [Space Bar] [Ctrl-Esc] [Power Key]

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. Conguration options: [Disabled] [Enabled]

5-29ASUS P1/P2-P5945GCX

5.5.5 Hardware Monitor

Hardware Monitor

CPU Temperature [73.5ºC/164ºF]

MB Temperature [39ºC/102ºF]

CPU Fan Speed [2896RPM]
CPU Q-Fan Control [Enabled]
CPU Fan Ratio [Auto]
CPU Target Temperature [70

VCORE Voltage [ 1.272V]

3.3V Voltage [ 3.296V]
5V Voltage [ 5.196V]
12V Voltage [12.091V]

o

]

CPU Temperature

CPU Temperature [xxxºC/xxxºF]
MB Temperature [xxxºC/xxxºF]

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 Fan Speed [xxxxRPM], [N/A], or [Ignored]

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 eld shows N/A.CPU Q-Fan Control [Enabled]

Allows you to enable or disable the ASUS Q-Fan feature that smartly adjusts the
fan speeds for more efcient system operation. When this eld is set to [Enabled],
the three succeeding items appear. Conguration options: [Disabled] [Enabled]

CPU Fan Ratio [Auto]

Allows you to select the fan speed ratio for CPU fan at low CPU temperature.

Conguration options: [Auto] [90%] [80%] [70%] [60%] [50%] [40%] [30%] [20%]

CPU Target Temperature [70o]

Allows you to set CPU target temperature. Conguration options: [60

o

[70o] ~ [86o] [90o]

] [62o] [64

o

] [66o] [68o]

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

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

5-30 Chapter 5: BIOS setup

5.6 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.

Exit

Boot Settings

Boot Device Priority

Boot Settings Conguration
Security

5.6.1 Boot Device Priority

Boot Device Priority

1st Boot Device [Netac.]

2nd Boot Device [Hard Drive]
3rd Boot Device [ATAPI CD-ROM]

1st ~ xxth Boot Device

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. Conguration options: [Netac.] [Hard Drive] [ATAPI
CD-ROM] [Disabled]

5-31ASUS P1/P2-P5945GCX

5.6.2 Boot Settings Conguration

Boot Settings Conguration

Quick Boot [Enabled]

Full Screen Logo [Enabled]
Bootup Num-Lock [On]
Hit ‘DEL’ Message Display [Enabled]
Interrupt 19 Capture [Disabled]

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

Quick Boot [Enabled]

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. Conguration options: [Disabled] [Enabled]

Full Screen Logo [Enabled]

This allows you to enable or disable the full screen logo display feature.

Conguration options: [Disabled] [Enabled]

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

Bootup Num-Lock [On]

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

Hit ‘DEL’ Message Display [Enabled]

When set to Enabled, the system displays the message “Press DEL to run Setup”

during POST. Conguration options: [Disabled] [Enabled]

Interrupt 19 Capture [Disabled]

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

5-32 Chapter 5: BIOS setup

5.6.3 Security

The Security menu items allow you to change the system security settings. Select

an item then press <Enter> to display the conguration options.

Security Settings

Supervisor Password : Not Installed
User Password : Not Installed

Change Supervisor Password

<Enter> to change

password.

<Enter> again to

disabled password.

Change Supervisor Password

Select this item to set or change the supervisor password. The Supervisor
Password item on top of the screen shows the default Not Installed. After you set
a password, this item shows Installed.

To set a Supervisor Password:

1. Select the

2. From the password box, type a password composed of at least six letters

and/or numbers, then press <Enter>.

3. Conrm 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.

Change Supervisor Password item and press <Enter>.

If you forget your BIOS password, you can clear it by erasing the CMOS Real
Time Clock (RTC) RAM. See section “4.3 Jumpers” for information on how to
erase the RTC RAM.

5-33ASUS P1/P2-P5945GCX

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

Exit

Security Settings

Supervisor Password : Installed
User Password : Not Installed

Change Supervisor Password

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

<Enter> to change

password.

<Enter> again to

disabled password.

User Access Level (Full Access]

This item allows you to select the access restriction to the Setup items.

Conguration options: [No Access] [View Only] [Limited] [Full Access]

No Access prevents user access to the Setup utility.

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

Limited allows changes only to selected elds, such as Date and Time.

Full Access allows viewing and changing all the elds in the Setup utility.

Change User Password

Select this item to set or change the user password. The User Password item on
top of the screen shows the default Not Installed. After you set a password, this
item shows 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. Conrm 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.

Clear User Password

Select this item to clear the user password.

5-34 Chapter 5: BIOS setup

5.7 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

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 Changes

Once you are nished 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 conrmation window appears. Select OK to
save changes and exit.

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 Changes

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 elds other than System Date, System
Time, and Password, the BIOS asks for a conrmation before exiting.

Discard Changes

This option allows you to discard the selections you made and restore the

previously saved values. After selecting this option, a conrmation appears. Select

OK to discard any changes and load the previously saved values.

Load 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 conrmation

window appears. Select OK to load default values. Select Exit & Save Changes

or make other changes before saving the values to the non-volatile RAM.

5-35ASUS P1/P2-P5945GCX

5-36 Chapter 5: BIOS setup