Asus P5GC-MX User Manual

P5GC-MX/GBL

Motherboard

E3541

Second Edition V2 January 2008

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.

Contents

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

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

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

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

P5GC-MX/GBL specications summary .................................................... x

Chapter 1: Product introduction

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

1.2 Package contents .........................................................................

1.3 Special features ............................................................................

1.3.1 Product highlights ...........................................................

1.3.2 Innovative ASUS features ...............................................

1.4 Before you proceed .....................................................................

1.5 Motherboard overview .................................................................

1.5.1 Placement direction ........................................................

1.5.2 Screw holes ....................................................................

1.5.3 Motherboard layout .........................................................

1.6 Central Processing Unit (CPU) ...................................................

1.6.1 Installling the CPU ..........................................................

1.6.2 Installling the CPU heatsink and fan ..............................

1.6.3 Uninstalling the CPU heatsink and fan .........................

1.7 System memory .........................................................................

1.7.1 Overview .......................................................................

1.7.2 Memory congurations ..................................................

1.7.3 DDR2 Qualied Vendors List ........................................

1.7.4 Installing a DIMM ..........................................................

1.7.5 Removing a DIMM ........................................................

1.8 Expansion slots ..........................................................................

1.8.1 Installing an expansion card .........................................

1.8.2 Conguring an expansion card .....................................

1.8.3 Interrupt assignments ...................................................

1.8.4 PCI slots ........................................................................

1.8.5 PCI Express x1 ............................................................

1.8.6 PCI Express x16 ..........................................................

1.9 Jumpers ......................................................................................

1-2

1-4

1-5

1-6

1-7

1-8

1-11

1-13

1-15

1-16

1-20

1-21

1-22

1-23

1-24

iii

Contents

1.10 Connectors ................................................................................. 1-26

1.10.1 Rear panel connectors ..................................................

1.10.2 Internal connectors .......................................................

Chapter 2: BIOS setup

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

2.1.1 Creating a bootable oppy disk .......................................

2.1.2 ASUS EZ Flash 2 utility ...................................................

2.1.3 AFUDOS utility ................................................................

2.1.4 ASUS CrashFree BIOS 3 utility ......................................

2.1.5 ASUS Update utility ........................................................

2.2 BIOS setup program ..................................................................

2.2.1 BIOS menu screen ........................................................

2.2.2 Menu bar .......................................................................

2.2.3 Navigation keys .............................................................

2.2.4 Menu items ...................................................................

2.2.5 Sub-menu items ............................................................

2.2.6 Conguration elds .......................................................

2.2.7 Pop-up window .............................................................

2.2.8 Scroll bar .......................................................................

2.2.9 General help .................................................................

Main menu .................................................................................. 2-15

2.3

2.3.1 System Time .................................................................

2.3.2 System Date ................................................................

2.3.3 Legacy Diskette A ........................................................

2.3.4 Primary, Third and Fourth IDE Master/Slave ................

2.3.5 IDE Conguration ..........................................................

2.3.6 System Information .......................................................

2.4 Advanced menu .........................................................................

2.4.1 JumperFree Conguration ............................................

2.4.2 USB Conguration ........................................................

2.4.3 CPU Conguration ........................................................

2.4.4 Chipset ..........................................................................

2.4.5 Onboard Devices Conguration ....................................

2.4.6 PCI PnP ........................................................................

1-26

1-27

2-2

2-3

2-4

2-6

2-9

2-12

2-13

2-14

2-15

2-16

2-17

2-18

2-19

2-21

2-22

2-23

2-26

2-27

Contents

2.5 Power menu ................................................................................ 2-29

2.5.1 Suspend Mode [Auto] ...................................................

2.5.2 ACPI 2.0 Support [Disabled] .........................................

2.5.3 ACPI APIC Support [Enabled] .......................................

2.5.4 APM Conguration ........................................................

2.5.5 Hardware Monitor .........................................................

2.6 Boot menu ..................................................................................

2.6.1 Boot Device Priority ......................................................

2.6.2 Boot Settings Conguration ..........................................

2.6.3 Security .........................................................................

2.7 Tools menu .................................................................................

ASUS EZ Flash 2 ......................................................................... 2-37

2.8 Exit menu ....................................................................................

Chapter 3: Software support

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

3.2 Support CD information ..............................................................

3.2.1 Running the support CD .................................................

3.2.2 Drivers menu ...................................................................

3.2.3 Utilities menu ..................................................................

3.2.4 ASUS Contact information ..............................................

2-29

2-30

2-32

2-33

2-34

2-35

2-37

2-38

3-2

3-3

3-4

3-6

Appendix: CPU features

A.1 Intel® EM64T ..................................................................................A-2

Using the Intel® EM64T feature ...................................................... A-2

A.2 Enhanced Intel SpeedStep

A.2.1 System requirements ......................................................

A.2.2 Using the EIST ................................................................

A.3 Intel

Hyper-Threading Technology ...........................................A-4

Using the Hyper-Threading Technology ........................................ A-4

Technology (EIST) ........................A-2

A-2

A-3

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.

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 possible, disconnect all power cables from the existing system before you add a device.

•

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

•

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

•

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

•

If the power supply is broken, do not try to x it by yourself. Contact a qualied service technician or your retailer.

Operation safety

•

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

•

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

•

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

•

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

•

Place the product on a stable surface.

•

If you encounter technical problems with the product, contact a qualied

service technician or your retailer.

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

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

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

vii

About this guide

This user guide contains the information you need when installing and conguring

the motherboard.

How this guide is organized

This manual contains the following parts:

• Chapter 1: Product introduction

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

• Chapter 2: BIOS setup

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

• Chapter 3: Software support

This chapter describes the contents of the support CD that comes with the motherboard package.

Where to nd more information

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

1. ASUS websites

The ASUS website provides 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.

viii

Conventions used in this guide

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

DANGER/WARNING: 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 help you complete a

task.

Typography

Bold text Indicates a menu or an item to select

Italics

Used to emphasize a word or a phrase

<Key> Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key

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

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

key names are linked with a plus sign (+)

Example: <Ctrl+Alt+D>

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

then supply the required item or value enclosed in brackets

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

afudos /i[lename]

afudos /iP5GCMXGB.ROM

P5GC-MX/GBL specications summary

CPU LGA775 socket for Intel® Core™2 Duo / Pentium® D /

Chipset Northbridge: Intel® 945GC

Front Side Bus 1333(O.C)*/1066/800/533 MHz (* when O.C and CPU

Memory Dual-channel memory architecture

VGA Integrated Intel® Graphics Media Accelerator 950 Expansion slots 1 x PCI Express x16 slot

Storage Intel® ICH7 SouthBridge supports:

Audio High-Denition audio CODEC, 6-channel audio port

LAN Realtek® 8111C PCIe Gigabit LAN controller USB Supports up to 8 USB 2.0 ports (four ports at

Rear panel 1 x Parallel port

BIOS features 8 Mb Flash ROM, AMI BIOS, PnP, WfM2.0, DMI2.0,

Special features ASUS EZ Flash2

Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME

Pentium® 4 / Celeron® D Processors Compatible with Intel® 06/05B/05A processors Supports Intel® Enhanced Memory 64 Technology (EM64T), Enhanced Intel SpeedStep® Technology (EIST), and Intel® Hyper-Threading Technology * Refer to www.asus.com for Intel CPU support list

Southbridge: Intel® ICH7

support 1333MHz FSB)

2 x 240-pin DIMM sockets support up to 4GB of unbufferred non-ECC 667/533 MHz DDR2 DIMMs

1 x PCI Express x1 slot

2 x PCI 2.2 slots

- 1 x Ultra DMA 100/66/33

- 4 x Serial ATA 3Gb/s ports

S/PDIF out interface

mid-board, four ports at back panel)

1 x Serial port 1 x LAN (RJ-45) port 4 x USB 2.0 ports 1 x VGA port

1 x PS/2 keyboard port 1 x PS/2 mouse port 6-channel high-denition audio I/O port

SM BIOS 2.4

ASUS CrashFree BIOS 3 ASUS MyLogo2™ ASUS Q-Fan

(continued on the next page)

P5GC-MX/GBL specications summary

Internal connectors 2 x USB 2.0 connectors for 4 additional USB 2.0 ports

Power Requirement ATX power supply (with 24-pin and 4-pin 12 V plugs) Support CD contents Device drivers

Form Factor uATX form factor: 9.6 in x 7.4 in (24.5cm x 18.8cm)

*Specications are subject to change without notice.

1 x Floppy disk drive connector 1 x IDE connector for two devices 4 x Serial ATA connectors 1 x CPU fan connector 1 x Chassis fan connector

1 x 24-pin ATX power connector 1 x 4-pin ATX 12 V power connector

1 x CD audio in connector 1 x Chassis intrusion connector

1 x Front panel high-denition audio connector 1 x S/PDIF out connector

1 x System Panel connector

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

xii

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

Product

introduction

1.1 Welcome!

Thank you for buying an ASUS® P5GC-MX/GBL motherboard!

The motherboard delivers a host of new features and latest technologies, making it

another standout in the long line of ASUS quality motherboards!

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

1.2 Package contents

Check your motherboard package for the following items.

Motherboard ASUS P5GC-MX/GBL motherboard

Cables 1 x Serial ATA cable 1 x Serial ATA power cable 1 x Ultra DMA 100/66 cable 1 x Floppy disk drive cable

Accessories I/O shield

Application CDs ASUS motherboard support CD

Documentation User guide

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

1.3 Special features

1.3.1 Product highlights

In tel® Co re™2 Duo

This motherboard supports the latest powerful and energy efcient processors

from Intel®. Intel® Core™2 Duo is based on the Intel® Core™ Microarchitecture and built on the 65-nanometer (nm) process technology with copper interconnect. Intel® Core™2 Duo allows users to step up to new levels of gaming experience and multi-tasking performance. Boosting performance is a shared and multi-core

optimized L2 cache of 2 MB or 4 MB, guaranteeing enhanced user experience in the digital home and ofce. See page 1-8 for details.

Intel® Core™2 processors can run at a maximum speed of 1333 MHZ FSB on

this motherboard when using a 1333MHZ CPU. Settting Overclock to 1333MHZ when using a 1066MHZ CPU may cause some devices fail to work.

1-2 Chapter 1: Product introduction

64-bit CPU support

The motherboard supports 64-bit processors that provides high-performance

computing and faster memory access required for memory and data intensive

applications.

Intel® 945GC chipset

The Intel® 945GC graphics memory controller hub (GMCH) and the ICH7 I/O controller hub provide the vital interfaces for the motherboard. The GMCH features the Intel® Graphics Media Accelerator 950, an integrated graphics engine for

enhanced 3D, 2D, and video capabilities. The GMCH contains one 16-lane PCI

Express port intended for an external PCI Express graphics card and provides the

interface for a processor in the 775-land package with 1333(O.C)/1066/800 MHz front side bus (FSB), dual channel DDR2 at speeds of up to 667 MHz.

The Intel® ICH7 Southbridge represents the seventh generation I/O controller hub

that provides the interface for PCI Express and high denition audio.

DDR2 memory support

The motherboard supports DDR2 memory which features data transfer rates of 667/533 MHz to meet the higher bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications. The dual-channel DDR2 architecture

doubles the bandwidth of your system memory to boost system performance,

eliminating bottlenecks with peak bandwidths of up to 10.7 GB/s. See pages 1-15

to 1-19 for details.

PCI Express™ interface

The motherboard fully supports PCI Express, the latest I/O interconnect technology

that speeds up the PCI bus. PCI Express features point-to-point serial interconnections between devices and allows higher clockspeeds by carrying data in packets. This high speed interface is software compatible with existing PCI

specications. See page 1-23 for details.

Serial ATA 3.0 Gb/s technology

The motherboard supports the Serial ATA technology through the Serial ATA interfaces and the Intel® ICH7 chipset. The SATA specication allows for thinner,

more exible cables with lower pin count, reduced voltage requirement, and up to 300 MB/s data transfer rate.

ASUS P5GC-MX/GBL 1-3

High Denition Audio

Enjoy high-end sound quality on your PC! The onboard HD audio (High Denition Audio, previously codenamed Azalia) CODEC enables high-quality 192KHz/24-bit

audio output, and multi-streaming technology that simultaneously sends different audio streams to different destinations. You can now talk to your partners on the headphone while playing multi-channel network games.

1.3.2 Innovative ASUS features

ASUS CrashFree BIOS 3

The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data from a

USB ash disk containing the BIOS le. See page 2-6 for details.

ASUS EZ Flash 2

EZ Flash 2 is a user-friendly BIOS update utility. Simply press the predened

hotkey to launch the utility and update the BIOS without entering the OS. Update

your BIOS easily without preparing a bootable diskette or using an OS-based ash utility. See page 2-3 for details.

ASUS MyLogo2™

This feature allows you to convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen. See page 2-34 for details.

ASUS Q-Fan technology

The ASUS Q-Fan technology smartly adjusts the fan speeds according to the system loading to ensure quiet, cool, and efcient operation.

1-4 Chapter 1: Product introduction

1.4 Before you proceed

P5GC-MX/GBL

Onboard LED

SB_PWR

Standby

Power

OFF

Powered

Off

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

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

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

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

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

• Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. Failure to do so may cause severe damage to the motherboard,

peripherals, and/or components.

Onboard LED

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

ASUS P5GC-MX/GBL 1-5

P5GC-MX/GBL

1.5 Motherboard overview

Before you install the motherboard, study the conguration of your chassis to ensure that the motherboard ts into it.

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

1.5.1 Placement direction

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

1.5.2 Screw holes

Place six (6) screws into the holes indicated by circles to secure the motherboard to the chassis.

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

Place this side towards the rear of the chassis

1-6 Chapter 1: Product introduction

1.5.3 Motherboard layout

P5GC-MX/GBL

LGA775

Intel ICH7

Intel

MCH 945GC

18.8cm(7.4in)

24.5cm(9.6in)

DDR2 DIMM_A1(64 bit,240-pin module)

DDR2 DIMM_B1(64 bit,240-pin module)

PCI1

PCI2

PCIEX1_1

PCIEX1_16

CR2032 3V

Lithium Cell

CMOS Power

EATXPWR

ATX12V

PRI_IDE

CPU_FAN

CHA_FAN

8Mb

BIOS

F_PANEL

SPEAKER

SATA1 SATA2

SATA4SATA3

USB56

USB78

FLOPPY

AAFP

ALC662

Super I/O

SPDIF_OUT

PS2_USBPWR

RTM876-660

CLRTC

CHASSIS

PS/2KBMS

T: Mouse B: Keyboard

LAN_USB12

COM1

PARALLEL PORT

VGA1

USB34

AUDIO

SB_PWR

LAN

ASUS P5GC-MX/GBL 1-7

1.6 Central Processing Unit (CPU)

P5GC-MX/GBL

P5GC-MX/GBL CPU Socket 775

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

Core™2 Duo/Pentium® D/Pentium® 4 and Celeron

•

Your boxed Intel® Core™2 Duo/Pentium® D/Pentium® 4 or Celeron® D LGA775 processor package should come with installation instructions for the CPU, fan and heatsink assembly. If the instructions in this section do not match the CPU documentation, follow the latter.

• Upon purchase of the motherboard, make sure that the PnP cap is on the socket and the socket pins are not bent. Contact your retailer immediately

if the PnP cap is missing, or if you see any damage to the PnP cap/socket pins/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/transit-related.

• Keep the cap after installing the motherboard. ASUS will process Return

Merchandise Authorization (RMA) requests only if the motherboard comes

with the cap on the LGA775 socket.

•

The product warranty does not cover damage to the socket pins resulting

from incorrect CPU installation/removal, or misplacement/loss/incorrect

removal of the PnP cap.

1.6.1 Installling the CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

D processors.

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

1-8 Chapter 1: Product introduction

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

released from the retention tab.

Retention tab

Load lever

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

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

4. Lift the load plate with your thumb

and forenger to a 100º angle (A),

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

PnP Cap

This side of the cam box should face you.

Load plate

5. Position the CPU over the socket, making sure that the gold triangle is on the bottom-left corner of the socket. The socket

alignment key should t into

the CPU notch.

ASUS P5GC-MX/GBL 1-9

Alignment key

Gold triangle mark

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

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

The motherboard supports Intel® LGA775 processors with the Intel® Enhanced Memory 64 Technology (EM64T), Enhanced Intel SpeedStep® Technology (EIST), and Hyper-Threading Technology.

1-10 Chapter 1: Product introduction

1.6.2 Installling the CPU heatsink and fan

The Intel® Core™2 Duo/Pentium® D/Pentium® 4 and Celeron

require a specially designed heatsink and fan assembly to ensure optimum thermal

condition and performance.

• Install the motherboard to the chassis before you install the CPU fan and heatsink assembly

• When you buy a boxed Intel Celeron® D LGA775 processor, the package includes the CPU fan and heatsink assembly. If you buy a CPU separately, make sure that you use only Intel®-certied multi-directional heatsink and fan.

• Your I Intel

heatsink and fan assembly comes in a push-pin design and requires no tool

to install.

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

Core™2 Duo/Pentium® D/Pentium® 4 or Celeron® D LGA775

Core™2 Duo/Pentium® D/Pentium® 4 or

To install the CPU heatsink and fan:

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

D processors

Fastener

Motherboard hole

Make sure each fastener is oriented as shown, with the narrow groove directed outward.

ASUS P5GC-MX/GBL 1-11

2. Push down two fasteners at a time

P5GC-MX/GBL

CPU Fan Connector

CPU_FAN

GND

+12V

CPU FAN IN CPU FAN PWM

in a diagonal sequence to secure

the heatsink and fan assembly in place.

3. When the fan and heatsink assembly is in place, connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.

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

errors can occur if you fail to plug this connector.

• We recommend you to install the chassis fan for better thermal state.

1-12 Chapter 1: Product introduction

1.6.3 Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

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

2. Rotate each fastener

counterclockwise.

3. Pull up two fasteners at a

time in a diagonal sequence

to disengage the heatsink and fan assembly from the motherboard.

ASUS P5GC-MX/GBL 1-13

4. Remove the heatsink and fan assembly from the motherboard.

5. Rotate each fastener clockwise to reset the orientation.

Narrow end of the groove

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

1-14 Chapter 1: Product introduction

1.7 System memory

P5GC-MX/1333

240-pin DDR2 DIMM Sockets

128 Pins

112 Pins

DIMMB1

DIMMA1

1.7.1 Overview

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

Modules (DIMM) sockets.

A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched

differently to prevent installation on a DDR DIMM socket.

The gure illustrates the location of the DDR2 DIMM sockets:

Channel Sockets

Channel A DIMM_A1

Channel B DIMM_B1

ASUS P5GC-MX/GBL 1-15

1.7.2 Memory congurations

You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2

DIMMs into the DIMM sockets.

• For dual-channel conguration, the total size of memory module(s) installed

per channel must be the same (DIMM_A1 = DIMM_B1).

• Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the

same vendor. Refer to the DDR2 Qualied Vendors List on next page for

details.

• If you are using a Windows 32-bit operating system (e.g. 32-bit Windows XP, 32-bit Windows Vista) without the Physical Address Extension (PAE)

support, the system will allocate a certain amount of memory space for system devices.

• We recommend that you install only a maximum of 3 GB system memory

when using a Windows 32-bit version operating system without the PAE. The excess over 3GB of installed memory will not cause any problem;

however, the system can not use this excess memory space and the

system will display less than the total size of physical memory installed.

• This motherboard does not support memory modules made up of 128 Mb

chips or double-sided x16 memory modules. .

1.7.3 DDR2 Qualied Vendors List

The following table lists the memory modules that have been tested and qualied

for use with this motherboard. Visit the ASUS website (www.asus.com) for the

latest DDR2 DIMM modules for this motherboard.

Make sure to choose the right QVLs (Qualied Vendors List) from ASUS

website according to the version of your mother board. Refer to your Printed Circuit Board (PCB) for version information.

1-16 Chapter 1: Product introduction

DDR2 533 Qualied Vendors List

Size Vendor Model Brand Side(s) Part No.

256MB Kingston KVR533D2N4/256 Elpida SS E5116AB-5C-E • •

256MB Kingston KVR533D2N4/256 Elpida SS E5116AF-5C-E • •

512MB Kingston KVR533D2N4/512 Hynix DS HY5PS56821F-C4 • •

512MB Kingston KVR533D2N4/512 Inneon SS HYB18T512800AF3733336550 • •

1G Kingston KVR533D2N4/1G Kingston DS D6408TE7BL-37 • •

256MB Samsung M378T3253FG0-CD5 Samsung SS K4T56083QF-GCD5 • •

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

256MB Qimonda HYS64T32000HU-3.7-A Qimonda SS HYB18T512160AF-3.7AFSS31270 • •

512MB Qimonda HYS64T64000GU-3.7-A Qimonda SS HYB18T512800AC37SSS11511 • •

512MB Qimonda HYS64T64000HU-3.7-A Qimonda SS HYB18T512800AF37SSS12079 • •

512MB Qimonda HYS64T64000HU-3.7-A Qimonda SS HYB18T512800AF37FSS29334 • •

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

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

512MB Micron MT 16HTF6464AG-53EB2 Micron DS D9BOM • •

512MB Micron MT 16HTF6464AG-53EB2 Micron DS Z9BQT • •

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

512MB Corsair VS512MB533D2 Corsair DS MIII0052532M8CEC • •

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

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

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

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

512MB PQI MEAB-323LA PQI SS D2-E04180W025 • •

512MB AENEON AET660UD00-370A98Z AENEON SS AET93F370A G 0513 • •

256MB AENEON AET560UD00-370A98Z AENEON SS AET94F370AWVV34635G0520 • •

512MB AENEON AET660UD00-370A98Z AENEON SS AET93F370A 3VV36328G 0522 • •

512MB AENEON AET660UD00-370A98X AENEON SS AET93F370A 0518 • •

12MB AENEON AET660UD00-370A88S AENEON DS AET82F370A 0550 • •

512MB AENEON AET660UD00-370B97X AENEON SS AET93R370B 0640 • •

1G AENEON AET760UD00-370A98Z AENEON DS AET93F370A 0551 • •

1G AENEON AET760UD00-370A98S AENEON DS AET92F370A 0606 • •

1G AENEON AET760UD00-370B97X AENEON DS AET93R370B 0640 • •

1G AENEON AET760UD00-370B97S AENEON DS AET92R370B 0644 • •

2G AENEON AET860UD00-370A08X AENEON DS AET03F370AFVV26176G 0542 • •

512MB REMAXEL RML1040EG38D6F-533 Elpida SS E5108AG-5C-E • •

512MB VERITECH GTP512HLTM46DG VERITECH SS VTD264M8PC6G01A164129621 • •

256MB TAKEMS TMS25B264B161-534KQ takeMS SS MS18T51216-3.70711 • •

512MB TAKEMS TMS51B264C081-534QI takeMS SS MS18T51280-3.7 • •

512MB TAKEMS TMS51B264C081-534AP takeMS SS MS18T51280-3.7P0704D • •

512MB TAKEMS TMS51B264C081-534AE takeMS SS MS18T51280-3.7EA07100 • •

1G TAKEMS TMS1GB264C081-534AE takeMS DS MS18T51280-3.7EA0651D • •

1G TAKEMS TMS1GB264C081-534QI takeMS DS MS18T51280-3.7 • •

1G TAKEMS TMS1GB264C081-534AP takeMS DS MS18T51280-3.7P0645D • •

DIMM support

A* B*

ASUS P5GC-MX/GBL 1-17

DDR2 667 Qualied Vendors List

Size Vendor Model Brand Side(s) Part No.

256MB Kingston KVR667D2N5/256 Elpida SS E2508AB-6E-E • •

512MB Kingston KVR667D2N5/512 Kingston SS D6408TE8WL-27 • •

1G Kingston KVR667D2N5/1G Kingston DS D6408TE8WL-3 • •

512MB Samsung KR M378T6553CZ0-CE6 Samsung SS K4T51083QC • •

512MB Samsung KR M378T6453FZ0-CE6 Samsung DS K4T56083QF-ZCE6 • •

512MB Samsung M378T6553CZ3-CE6 Samsung SS K4T51083QC-ZCE6 • •

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

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

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

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

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

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

2G Qimonda HYS64T256020EU-3S-B Qimonda DS HTB18T1G800BF-3S3VV10907 • •

512MB Corsair VS512MB667D2 Corsair DS MIII0052532M8CEC • •

512MB Corsair CM2X512-5400C4 Corsair SS Heat-Sink Package • •

1G Corsair VS1GB667D2 Corsair DS MID095D62864M8CEC • •

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

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

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

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

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

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

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

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

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

512MB Apacer AU512E667C5KBGC Apacer SS AM4B5708MIJS7E0627B • •

512MB Apacer AU512E667C5KBGC Apacer SS AM4B5708GQJS7E06332F • •

1G Apacer AU01GE667C5KBGC Apacer DS AM4B5708GQJS7E0636B • •

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

1G Apacer AU01GE667C5KBGC Apacer DS AM4B5708MIJS7E0627B • •

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

512MB ADATA M20AD5G3H3166I1C52 ADATA SS AD29608A8A-3EG20648 • •

1G ADATA M2OAD5G3I4176I1C52 ADATA DS AD29608A8A-3EG20645 • •

512MB VDATA M2YVD5G3H31P4I1C52 VDATA SS VD29608A8A-3EG20627 • •

512MB VDATA M2GVD5G3H166I1C52 VDATA SS VD29608A8A-3EG20637 • •

1G VDATA M2GVD5G3I41P6I1C52 VDATA DS VD29608A8A-3EG20627 • •

1G VDATA M2GVD5G3I41C4I1C52 VDATA DS VD29608A8A-3EC20620 • •

1G VDATA M2GVD5G3I4176I1C52 VDATA DS VD29608A8A-3EG20641 • •

2G ADATA M2OAD5H3J4170I1C53 ADATA DS AD20908A8A-3EG 30724 • •

512MB PSC AL6E8E63B-6E1K PSC SS A3R12E3GEF637BLC5N • •

1G PSC AL7E8E63B-6E1K PSC DS A3R12E3GEF637BLC5N • •

2G PSC AL8E8F73C-6E1 PSC DS A3R1GE3CFF733MAA00 • •

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

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

512MB MDT MDT 512MB MDT SS 18D51280D-30648 • •

1G MDT MDT 1024MB MDT DS 18D51200D-30646 • •

1G MDT MDT 1024MB MDT DS 18D51280D-30646E • •

DIMM support

A* B*

(continued on the next page)

1-18 Chapter 1: Product introduction

DDR2 667 Qualied Vendors List

Size Vendor Model Brand Side(s) Part No.

1G PQI DDR2-667U 1G Hynix DS HY5PS12821BPF-E3A • •

512MB AENEON AET660UD00-30DA98Z AENEON SS AET93F30DA 0552 • •

512MB AENEON AET660UD00-30DB97X AENEON SS AET93R300B 0634 • •

1G AENEON AET760UD00-30DA98Z AENEON DS AET93F30DA8EE47414G 0540 • •

512MB AENEON AET660UD00-30DA98Z AENEON SS AET93F300A 0606 • •

1G AENEON AET760UD00-30DA98Z AENEON DS AET93F30DA 0604 • •

1G AENEON AET760UD00-30DB97X AENEON DS AET93R300B 0639 • •

512MB VERITECH GTP512HLTM45EG VERITECH SS VTD264M8PC6G01A164129621 • •

1G VERITECH GTP01GHLTM55EG VERITECH DS VTD264M8PC6G01A164129621 • •

512MB TEAM TVDD512M667C5 TEAM SS T2D648MT-6 • •

1G TEAM TVDD1.02M667C4 TEAM DS T2D648PT-6 • •

512MB Century CENTURY 512MB Nanya SS NT5TU64M8AE-3C • •

512MB Century CENTURY 512MB Hynix SS HY5PS12821AFP-Y5 • •

1G Century CENTURY 1G Hynix DS HY5PS12821AFP-Y5 • •

1G Century CENTURY 1G Nanya DS NT5TU64M8AE-3C • •

512MB KINGBOX 512MB 667MHz KINGBOX SS EPD264082200-4 • •

1G KINGBOX DDRII 1G 667MHz KINGBOX DS EPD264082200-4 • •

512MB TAKEMS TMS51B264C081-665QI takeMS SS MS18T51280-3 • •

512MB TAKEMS TMS51B264C081-665AP takeMS SS MS18T51280-3S0627D • •

1G TAKEMS TMS1GB264C081-665QI takeMS DS MS18T51280-3 • •

1G TAKEMS TMS1GB264C081-665AE takeMS DS MS18T51280-3SEA07100 • •

1G TAKEMS TMS1GB264C081-665AP takeMS DS MS18T51280-3SP0717 • •

DIMM support

A* B*

Side(s): SS - Single Sided DS - Double Sided DIMM Support: A*: - supports one module inserted into either slot, in a Single-channel

memory conguration.

B*: - supports one pair of modules inserted into the yellow slots as one pair of

Dual-channel memory conguration.

Visit the ASUS website (www.asus.com) for the latest memory Qualied Vendor

List (QVL). Make sure to choose the right QVLs according to the version of your mother board. Refer to your Printed Circuit Board (PCB) for version information.

ASUS P5GC-MX/GBL 1-19

1.7.4 Installing a DIMM

Unplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage to both the motherboard and the components.

To install a DIMM:

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

2. Align a DIMM on the socket

such that the notch on the DIMM matches the break on the socket.

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

• 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.

• The DDR2 DIMM sockets do not support DDR DIMMs. DO not install DDR DIMMs to the DDR2 DIMM sockets.

1.7.5 Removing a DIMM

Follow these steps to remove a DIMM.

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

DDR2 DIMM notch

Unlocked retaining clip

Support the DIMM lightly with

your ngers when pressing the

retaining clips. The DIMM might

get damaged when it ips out with

extra force.

DDR2 DIMM notch

2. Remove the DIMM from the socket.

1-20 Chapter 1: Product introduction

1.8 Expansion slots

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

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

1.8.1 Installing an expansion card

To install an expansion card:

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

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

chassis).

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

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

completely seated on the slot.

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

6. Replace the system cover.

1.8.2 Conguring an expansion card

After installing the expansion card, congure it by adjusting the software settings.

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

Chapter 2 for information on BIOS setup.

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

3. Install the software drivers for the expansion card.

ASUS P5GC-MX/GBL 1-21

1.8.3 Interrupt assignments

Standard interrupt assignments

IRQ Standard Function

0 System Timer

1 Keyboard Controller

2 Re-direct to IRQ#9

4 Communications Port (COM1)*

5 IRQ holder for PCI steering*

6 Floppy Disk Controller

7 Printer Port (LPT1)*

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

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

IRQ assignments for this motherboard

A B C D E F G H

PCI slot 1

PCI slot 2

PCI Express x16 slot

PCI Express x1 slot

Onboard USB controller 1

Onboard USB controller 2

Onboard USB controller 3

Onboard USB controller 4

Onboard USB 2.0 controller

Onboard IDE port

Onboard HD audio

Onboard LAN

— shared — — — — — —

— — — — — non-shared — —

shared — — — — — — —

— — — — shared — — —

— shared — — — — — —

— — shared — — — — —

— — — shared — — — —

— — — — shared — — —

— — — — — — shared —

— — — shared — — — —

— shared — — — — — —

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.

1-22 Chapter 1: Product introduction

1.8.4 PCI slots

The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI

specications. The gure shows a LAN

card installed on a PCI slot.

If you install a PCI graphics card, we recommend that you remove the onboard graphics card driver.

1.8.5 PCI Express x1

This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply

with the PCI Express specications. The gure shows a network card

installed on the PCI Express x1 slot.

1.8.6 PCI Express x16

This motherboard supports one PCI

Express x16 graphics card. The gure

shows a graphics card installed on the PCI Express x16 slot.

ASUS P5GC-MX/GBL 1-23

1.9 Jumpers

P5GC-MX/GBL

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 CMOS, which include system setup information such as system passwords.

To erase the RTC RAM:

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

2. Remove the onboard battery.

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

4. Re-install the battery.

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

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

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper

default position. Removing the cap will cause system boot failure!

1-24 Chapter 1: Product introduction

2. USB device wake-up (3-pin PS2_USBPWR)

P5GC-MX/GBL

P5GC-MX/GBL USB Device Wake Up

PS2_USBPWR

(Default)

+5V

+5VSB

This jumper allows you to enable or disable the keyboard wake-up feature.

Set this jumper to pins 2-3 (+5VSB) to wake up the computer when you press a key on the keyboard (the default is the Space Bar). This feature requires an ATX power supply that can supply at least 500 mA on the +5VSB lead, and a

corresponding setting in the BIOS.

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

ASUS P5GC-MX/GBL 1-25

SPEED

LED

ACT/LINK

LED

LAN port

1.10 Connectors

2 3

1.10.1 Rear panel connectors

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

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

devices.

3. LAN (RJ-45) port.

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

LAN port LED indications

ACT/LINK LED SPEED LED Status Description Status Description

OFF No link OFF 10 Mbps connection

ORANGE Linked ORANGE 100 Mbps connection

BLINKING Data activity GREEN 1 Gbps connection

This port allows Gigabit connection to a Local Area

4. Line In port (light blue). This port connects the tape, CD, DVD player, or

other audio sources.

5. 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.

6. Microphone port (pink).

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

This port connects a microphone.

1-26 Chapter 1: Product introduction

Audio 2, 4, or 6-channel conguration

P5GC-MX/GBL

Floppy Disk Drive Connector

NOTE:

Orient the red markings on

the floppy ribbon cable to PIN 1.

PIN1

FLOPPY

Port

Light Blue Line In Rear Speaker Out Rear Speaker Out

Lime Line Out Front Speaker Out Front Speaker Out

Pink Mic In Mic In Bass/Center

Headset

2-channel

4-channel 6-channel

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

are available for connecting USB 2.0 devices.

8. USB 2.0 ports 3 and 4.

These two 4-pin Universal Serial Bus (USB) ports

are available for connecting USB 2.0 devices.

9. VGA port.

Serial port. This 9-pin COM1 port is for pointing devices or other serial

10.

This port is for a VGA monitor or other VGA-compatible devices.

devices.

11. PS/2 keyboard port (purple).

This port is for a PS/2 keyboard.

1.10.2 Internal connectors

1. Floppy disk drive connector (34-1 pin FLOPPY)

This connector is for the provided oppy disk drive (FDD) signal cable. Insert

one end of the cable to this connector, then connect the other end to the

signal connector at the back of the oppy disk drive.

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

ASUS P5GC-MX/GBL 1-27

2. IDE connectors (40-1 pin PRI_IDE)

P5GC-MX/GBL

IDE Connector

PRI_IDE

The onboard IDE connectors are for Ultra DMA 100/66/33 signal cables. 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 Mode of device(s) Cable connector

Single device Cable-Select or Master - Black

Two devices Cable-Select Master

Slave

Master Slave

• 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.

Black Gray

Black or gray

If any device jumper is set as “Cable-Select,” make sure all other device jumpers have the same setting.

1-28 Chapter 1: Product introduction

3. Serial ATA connectors

P5GC-MX/GBL

P5GC-MX/GBL SATA Connectors

GND

RSATA_TXP1

RSATA_TXN1

GND

RSATA_RXN1

RSATA_RXP1

GND

SATA1

GND

RSATA_TXP2

RSATA_TXN2

GND

RSATA_RXN2

RSATA_RXP2

GND

SATA2

GND RSATA_TXP3 RSATA_TXN3

GND RSATA_RXN3 RSATA_RXP3

GND

SATA3

GND RSATA_TXP4 RSATA_TXN4

GND RSATA_RXN4 RSATA_RXP4

GND

SATA4

P5GC-MX/GBL

Speaker Connectors

SPEAKER

+5V

GND GND

Speaker Out

(7-pin SATA1, SATA2, SATA3, SATA4)

These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives.

When using the connectors in Standard IDE mode, connect the primary (boot)

hard disk drive to the SATA1/2 connector. Refer to the table below for the

recommended SATA hard disk drive connections.

Serial ATA hard disk drive connection

Connector Color Setting Use

SATA1/2 Red Master Boot disk

SATA3/4 Black Slave Data Disk

4. Speaker connector (4-pin SPEAKER)

This 4-pin connector is for the chasis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings.

ASUS P5GC-MX/GBL 1-29

5. CPU and Chassis fan connectors

P5GC-MX/GBL

Fan Connectors

CPU_FAN

GND

+12V

CPU FAN IN CPU FAN PWM

CHA_FAN

GND

Rotation

+12V

P5GC-MX/GBL

P5GC-MX/GBL Digital Audio Connector

+5V

SPDIFOUT

GND

SPDIF_OUT

(4-pin CPU_FAN, 3-pin CHA_FAN)

The fan connectors support cooling fans of a total of 1A~2.2A (26.4W max.) at +12V. Connect the fan cables to the fan connectors on the motherboard,

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

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.

6. Digital Audio connector (4-1 pin SPDIF_OUT)

This connector is for the S/PDIF audio module to allow digital sound output. Connect one end of the S/PDIF audio cable to this connector and the other end to the S/PDIF module.

The S/PDIF out module is purchased separately.

1-30 Chapter 1: Product introduction

7. ATX power connectors

P5GC-MX/GBL

ATX Power Connector

EATXPWR

+3 Volts

Ground

+5 Volts

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

ATX12V

GND

+12V DC

GND

+12V DC

(24-pin EATXPWR and 4-pin ATX12V)

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

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.

•

If you intent to use a PSU with 20-pin and 4-pin power plugs, make sure that the 20-pin power plug can provide at least 15A on +12V and that the PSU has a minimum power rating of 350 W. The system may become unstable or may not boot up if the power is inadequate.

• The ATX 12 V Specication 2.0-compliant PSU passed the motherboard power requirement test with the following conguration:

CPU : Intel

Memory : 512 MB DDR (x 4) Graphics card : PCI Express x16 Nvidia EN5900 Parallel ATA devices : IDE hard disk drive (x 2)

Serial ATA device : SATA hard disk drive Optical drive : CD-ROM (x2) SCSI devices : SCSI card and SCSI hard disk drive

• You must install a PSU with a higher power rating if you intend to install additional devices.

Pentium® 4 3.6 GHz

ASUS P5GC-MX/GBL 1-31

8. Optical drive audio connector (4-pin CD)

P5GC-MX/GBL

Internal Audio Connector

(black)

Right Audio Channel

Left Audio Channel

Ground

P5GC-MX/GBL

USB 2.0 Connectors

USB78

USB+5V

USB_P8-

USB_P8+

GND

USB+5V

USB_P7-

USB_P7+

GND

USB56

USB+5V

USB_P6-

USB_P6+

GND

USB+5V

USB_P5-

USB_P5+

GND

This connector allows 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.

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

These connectors are for USB 2.0 ports. Connect the USB 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.

1-32 Chapter 1: Product introduction

10. Front panel audio connector (10-1 pin AAFP)

P5GC-MX/GBL

P5GC-MX/GBL Front Panel Audio Connector

HP_HD

MIC2_L

HP_R

HP_L

MIC2_JD

Jack_Sense

MIC2_R

PRESENSE#

AGND

AAFP

Legacy AC’97-compliant

pin definition

MIC2_L

Line out_R

Line out_L

MIC2_R

AGND

Azalia-compliant

pin definition

P5GC-MX/GBL

P5GC-MX/GBL Intrusion Connector

CHASSIS

+5VSB_MB

Chassis Signal

GND

(Default)

This connector is for a chassis-mounted front panel audio I/O module that

supports either HD Audio or legacy AC’97 audio standard.

•

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.

• By default, this connector is set to AC97 Audio. If you want to connect a

High Denition front panel audio module to this connector, set the Front Panel Support Type item in the BIOS to [HD Audio]. See section “2.4.5

Onboard Devices Conguration” for details.

11. Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event.

By default, the pins labeled “Chassis Signal” and “Ground” are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature.

ASUS P5GC-MX/GBL 1-33

12. System panel connector (10-1 pin F_PANEL)

P5GC-MX/GBL

System Panel Connector

F_PANEL

Ground

PLED-

PWR

PLED+

GND

Reset

IDELED+

IDELED-

HD LED

RESET

PWR LED

PWR BTN

This connector supports several chassis-mounted functions.

• System power LED (2-pin PWRLED)

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 LED (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.

• ATX power button/soft-off button (2-pin PWRBTN)

This connector is for the system power button. Pressing the power button

turns the system on or puts the system in sleep or soft-off mode depending on the BIOS settings. Pressing the power switch for more than four seconds while the system is ON turns the system OFF.

• Reset button (2-pin RESET)

This 2-pin connector is for the chassis-mounted reset button for system

reboot without turning off the system power.

1-34 Chapter 1: Product introduction

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

BIOS setup

2.1 Managing and updating your BIOS

The following utilities allow you to manage and update the motherboard Basic

Input/Output System (BIOS) setup.

ASUS EZ Flash 2 (Updates the BIOS in DOS mode using a oppy disk or USB ash disk.)

2. ASUS AFUDOS (Updates the BIOS in DOS mode using a bootable oppy

disk.)

ASUS CrashFree BIOS 3 (Updates the BIOS using a bootable oppy disk,

USB ash disk or the motherboard support CD when the BIOS le fails or

gets corrupted.)

ASUS Update (Updates the BIOS in Windows® environment.)

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.

2.1.1 Creating a bootable oppy disk

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

DOS environment

a. Insert a 1.44MB oppy disk into the drive.

b. At the DOS prompt, type format

Windows® XP environment

a. Insert a 1.44 MB oppy disk to the oppy disk drive.

b. Click

Start from the Windows® desktop, then select My Computer.

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

d. Click

File from the menu, then select Format. A Format 3 1/2 Floppy

Disk window appears.

e. Select

Create an MS-DOS startup disk from the format options eld,

then click Start.

Windows® 2000 environment

To create a set of boot disks for Windows® 2000:

a. Insert a formatted, high density 1.44 MB oppy disk into the drive.

b. Insert the Windows

c. Click

Start, then select Run.

2000 CD to the optical drive.

d. From the Open eld, type

D:\bootdisk\makeboot a:

assuming that D: is your optical drive.

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

A:/S then press <Enter>.

2-2 Chapter 2: BIOS setup

Windows® Vista environment

a. Insert a formatted, high density 1.44 MB oppy disk to the oppy disk

drive.

b. Click

c. Right-click

from the Windows® desktop, then select Computer.

Floppy Disk Drive then click Format to display the Format 3

1/2 Floppy dialog box.

d. Select the

e. Click

Create an MS-DOS startup disk check box.

Start.

2. Copy the original or the latest motherboard BIOS le to the bootable oppy disk.

2.1.2 ASUS EZ Flash 2 utility

The ASUS EZ Flash 2 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 2 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 2:

1. Visit the ASUS website (www.asus.com) to download the latest BIOS le for

the motherboard.

2. Save the BIOS le to a oppy disk or a USB ash disk, then restart the

system.

3. You can launch the EZ Flash 2 by two methods.

Insert the oppy disk / USB ash disk that contains the BIOS le to the

(1)

oppy disk drive or the USB port.

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

ASUSTek EZ Flash 2 BIOS ROM Utility V3.20

FLASH TYPE: MXIC 25L8005

Current ROM

BOARD: P5GC-MX GBL

VER: 0102 (H:00 B:00) DATE: 11/08/07

PATH: A:\

Update ROM

BOARD: Unknown

VER: Unknown DATE: Unknown

Note

[Enter] Select or Load [B] Backup [ESC] Exit

[Tab] Switch [Up/Down/Home/End] Move

ASUS P5GC-MX/GBL 2-3

(2) Enter BIOS setup program. Go to the

Tools menu then select EZ Flash2

and press <Enter>.

You can switch between drives by pressing <Tab> before the correct le

is found. Then press <Enter>.

4. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update

process and automatically reboots the system when done.

• This function can support devices such as USB ash disk, or oppy disk

with

FAT 32/16

• DO NOT shut down or reset the system while updating the BIOS to prevent

system boot failure!

format and single partition only.

2.1.3 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 1024KB free space to save the le.

• The succeeding BIOS screens are for reference only. The actual BIOS screen displays may not be 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

2-4 Chapter 2: BIOS setup

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(ASUS V2.07(03.11.24BB))

Reading ash ..... done

Write to le...... ok

A:\>

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

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.

Make sure to choose the right BIOS les from ASUS website according to the

version of your mother board. Refer to your Printed Circuit Board (PCB) for version information.

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 /iP5GCMXGB.ROM

4. The utility veries the le and starts updating the BIOS.

A:\>afudos /iP5GCMXGB.ROM

AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))

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

Reading le ....... done

Reading ash ...... done

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!

ASUS P5GC-MX/GBL 2-5

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 /iP5GCMXGB.ROM

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

Reading le ....... done

Reading ash ...... done

Advance Check ......

Erasing ash ...... done

Writing ash ...... done

Verifying ash .... done

Please restart your computer

A:\>

2.1.4 ASUS CrashFree BIOS 3 utility

The ASUS CrashFree BIOS 3 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 , the oppy disk or the USB ash disk that contains the updated BIOS le.

• Prepare the motherboard support CD, the oppy disk or the USB ash 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 or the USB ash disk to P5GCMXGB.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.

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...

2-6 Chapter 2: BIOS setup

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 “P5GCMXGB.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 “P5GCMXGB.ROM”. Completed. Start ashing...

ASUS P5GC-MX/GBL 2-7

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.

Recovering the BIOS from the USB ash disk

To recover the BIOS from the USB ash disk:

1. Insert the USB ash disk that contains BIOS le to the USB port.

2. Turn on the system.

3. The utility will automatically checks the devices for the BIOS le When found, the utility reads the BIOS le and starts ashing the corrupted BIOS le.

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

• Only the USB ash disk with FAT 32/16 format and single partition can support ASUS CrashFree BIOS 3. The device size should be smaller than 8GB.

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

2-8 Chapter 2: BIOS setup

2.1.5 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

2. Click the

Utilities tab, then click Install ASUS Update.

Drivers menu appears.

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

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

ASUS P5GC-MX/GBL 2-9

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.

2-10 Chapter 2: BIOS setup

3. Select the ASUS FTP site nearest

you to avoid network trafc, or

click Auto Select. Click Next.

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.

ASUS P5GC-MX/GBL 2-11

2.2 BIOS setup program

This motherboard supports a programmable rmware chip that you can update using the provided utility described in section “2.1 Managing and updating your

BIOS.”

Use the BIOS Setup program when you are installing a motherboard, 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 rmware hub.

The rmware hub on the motherboard stores the Setup utility. When you start up

the computer, the system provides you with the opportunity to run this program.

Press <Del> 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, restart the system by pressing <Ctrl+Alt+Delete>, or by pressing the reset button on the system chassis. You can also restart by turning the system off and then back on. Do this last option only if

the rst two failed.

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

• 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 “2.8 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. Make sure to choose the right BIOS les according to the

version of your mother board. Refer to your Printed Circuit Board (PCB) for version information.

2-12 Chapter 2: BIOS setup

2.2.1 BIOS menu screen

Menu bar

Main Advanced Power Boot Tools Exit

System Time [19:34:30]

System Date [Mon 11/19/2007] Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[Not Detected] Primary IDE Slave :[Not Detected] Third IDE Master :[Not Detected]

Third IDE Slave :[Not Detected]

Fourth IDE Master :[Not Detected]

Fourth IDE Slave :[Not Detected]

IDE Conguration

System Information

Sub-menu items

Conguration eldsMenu items

BIOS SETUP UTILITY

General help

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

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

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

Navigation keys

2.2.2 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

Tools For conguring options for special functions

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.

2.2.3 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.

ASUS P5GC-MX/GBL 2-13

2.2.4 Menu items

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

Advanced Chipset settings

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

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

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

ICH Delayed Transaction [Enabled]

MPS Revision [1.4]

The highlighted item on the menu bar

Main Advanced Power Boot Tools Exit

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 [19:34:30]

System Date [Mon 11/19/2007] Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[Not Detected] Primary IDE Slave :[Not Detected] Third IDE Master :[Not Detected]

Third IDE Slave :[Not Detected]

Fourth IDE Master :[Not Detected]

Fourth IDE Slave :[Not Detected]

IDE Conguration

System Information

Main menu items

BIOS SETUP UTILITY

Use [ENTER], [TAB] or [SHIFT-TAB] to select a eld. Use [+] or [-] to congure system time.

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

Select Screen

2.2.5 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>.

2.2.6 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 “2.2.7 Pop-up window.”

2.2.7 Pop-up window

Select a menu item then press <Enter> to display a pop-up window with the

conguration options for that item.

2.2.8 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.

2.2.9 General help

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

2-14 Chapter 2: BIOS setup

Pop-up window

Scroll bar

2.3 Main menu

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

Refer to section “2.2.1 BIOS menu screen” for information on the menu screen

items and how to navigate through them.

Main Advanced Power Boot Tools Exit

System Time [19:34:30]

System Date [Mon 11/19/2007] Legacy Diskette A [1.44M, 3.5 in]

Primary IDE Master :[Not Detected] Primary IDE Slave :[Not Detected] Third IDE Master :[Not Detected]

Third IDE Slave :[Not Detected]

Fourth IDE Master :[Not Detected]

Fourth IDE Slave :[Not Detected]

IDE Conguration

System Information

BIOS SETUP UTILITY

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

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

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

2.3.1 System Time [xx:xx:xx]

Allows you to set the system time.

2.3.2 System Date [Day xx/xx/xxxx]

Allows you to set the system date.

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

Sets the type of oppy drive installed. Conguration options: [Disabled] [360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]

ASUS P5GC-MX/GBL 2-15

2.3.4 Primary, Third and Fourth 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.

Primary IDE Master

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

Type [Auto]

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

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 N/A 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]

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]

2-16 Chapter 2: BIOS setup

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 [Disabled]

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

2.3.5 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 wish 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]

Set [Compatible Mode] when legacy OS (i.e. WIN ME, 98, NT4.0, MS DOS) is used.

Set [Enhabced Mode] when native OS (i.e. WIN2000, WIN XP) is used.

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/Vista.

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

ASUS P5GC-MX/GBL 2-17

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 (Sec) [35]

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

2.3.6 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 : 0102

Build Date : 11/08/07

Processor

Type : Intel(R) Core(TM)2 Duo CPU 6300 @ 1.86GHz

Speed : 1866MHz

Count : 2

System Memory

Total : 512MB

Appropriated : 8MB

Available : 504MB

AMI BIOS

Displays the auto-detected BIOS information

Processor

Displays the auto-detected CPU specication

System Memory

Displays the auto-detected system memory

2-18 Chapter 2: BIOS setup

2.4 Advanced menu

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

Take caution when changing the settings of the Advanced menu items. Incorrect

eld values can cause the system to malfunction.

Main Advanced Power Boot Tools Exit

JumperFree Conguration

USB Conguration

CPU Conguration Chipset Onboard Devices Conguration PCIPnP

BIOS SETUP UTILITY

Adjust system frequency/voltage

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

2.4.1 JumperFree Conguration

Congure System Frequency/Voltage

AI Overclocking [Auto]

Allows selection of CPU frequency and auto adjustment of relevant parameters. Frequencies higher than CPU manufacturer recommends are not guaranteed to be stable. If the system becomes unstable, return to the default. Conguration options: [Manual] [Auto]

ASUS P5GC-MX/GBL 2-19

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 1066 266 MHz

FSB 800 200 MHz

FSB 667 133 MHz

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency. Conguration options: [Auto] [400MHz] [533 MHz] [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] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104]

2-20 Chapter 2: BIOS setup

2.4.2 USB Conguration

The items in this menu allows you to change the USB-related features. Select an

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

USB Conguration

Module Version - 2.24.3-13.4

USB Devices Enabled:

None

USB Function [Disabled]

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

USB Function [Disabled]

Allows you to enable or disable the USB function.

Conguration options: [Disabled] [Enabled]

The following items show when the USB Function item is set to [Enabled].

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: [Enabled] [Disabled]

USB 2.0 Controller Mode [HiSpeed]

Allows you to congure the USB 2.0 controller in HiSpeed (480 Mbps) or Full Speed (12 Mbps). Conguration options: [FullSpeed] [HiSpeed]

BIOS EHCI Hand-Off [Enabled]

Allows you to enable support for operating systems without an EHCI hand-off

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

ASUS P5GC-MX/GBL 2-21

2.4.3 CPU Conguration

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

Advanced

Congure advanced CPU settings

Manufacturer: Intel Brand String: Intel(R) Core(TM)2 Duo CPU @ 1.86GHz Frequency : 1.86MHz FSB Speed : 1066MHz

Cache L1 : 64 KB Cache L2 : 2048 KB

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

CPU ratio adjustment [Auto]

C1E Support [Enabled]

Max CPUID Value Limit: [Disabled] Vanderpool Technology [Enabled] CPU TM function [Enabled] Execute Disable Bit [Enabled]

PECI [Disabled]

BIOS SETUP UTILITY

Options

Auto

Manual

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

CPU ratio adjustment [Auto]

Allows you to enable or disable the CPU ratio adjustment function.

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

The following items appear only when this item is set to [Manual].

Ratio CMOS Setting: [7]

Sets the ratio between CPU Core Clock and the FSB Frequency.

C1E Support [Enabled]

Enables or disables Intel® CPU Enhanced Halt (C1E) function, a CPU power-

saving function in system halt state. When enabled, the CPU core frequency and

voltage is reduced during system halt state to decrease power consumption.

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].

2-22 Chapter 2: BIOS setup

Vanderpool Technology [Enabled]

Enables or disables Intel® Virtualization Technology. Virtualization enhanced by Intel® Virtualization Technology allows a platform to fun multiple operation systems

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

CPU TM function [Enabled]

Enables or disables Intel® CPU Thermal Monitor (TM) function. When enabled, the

CPU core frequency and voltage is reduced when the CPU overheats. Conguration options: [Enabled] [Disabled].

Execute Disable Bit [Enabled]

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: [Enabled] [Disabled].

PECI [Disabled]

Allows you to enable or disable PECI interface.

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

2.4.4 Chipset

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

Advanced

Advanced Chipset Settings

Congure DRAM Timing by SPD [Enabled]

Hyper Path 3 [Auto] DRAM Throttling Threshold [Auto]

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

DVMT Mode Select [DVMT Model] DVMT/FIXED Memory [128MB] Boot Display Device [Auto] TV Connector [Auto] HDTV Output [Auto] TV Standard [VBIOS-Default]

PEG Buffer Length [Auto] Link Latency [Auto]

PEG Root Control [Auto] Slot Power [Auto] High Priority Port Select [Disabled]

BIOS SETUP UTILITY

Enable or Disable Congure DRAM Timing by SPD

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

ASUS P5GC-MX/GBL 2-23

Congure DRAM Timing by SPD [Enabled]

When this item is enabled, the DRAM timing parameters are set according to the DRAM SPD (Serial Presence Detect). When disabled, you can manually set the DRAM timing parameters through the DRAM sub-items. The following sub-items

appear when this item is Disabled. Conguration options: [Disabled] [Enabled]

DRAM CAS# Latency [5 Clocks]

Controls the latency between the SDRAM read command and the time the data actually becomes available.

Conguration options: [6 Clocks] [5 Clocks] [4 Clocks] [3 Clocks]

DRAM RAS# Precharge [4 Clocks]

Controls the idle clocks after issuing a precharge command to the DDR

SDRAM. Conguration options: [2 Clocks] [3 Clocks] [4 Clocks] [5 Clocks] [6 Clocks]

DRAM RAS# to CAS# Delay [4 Clocks]

Controls the latency between the DDR SDRAM active command and the

read/write command. Conguration options: [2 Clocks] [3 Clocks] [4 Clocks] [5 Clocks] [6 Clocks]

DRAM RAS# Activate to Precharge [15 Clocks]

Sets the RAS Activate timing to Precharge timing.

Conguration options: [4 Clock] [5 Clocks] ~ [18 Clocks]

DRAM Write Recovery Time [4 Clocks]

Sets the DRAM Write Recover Time. Conguration options: [2 Clocks] [3 Clocks] [4 Clocks] [5 Clocks] [6 Clocks]

Hyper Path 3 [Auto]

Sets this item to enabled to reduce bottlenecks of memory bandwidth. Sets it to

disabled for safe mode. Conguration options: [Disabled] [Enabled] [Auto]

DRAM Throttling Threshold [Auto]

Allows you to enable DRAM Thermal Throttling to make your system more stable.

Conguration options: [Disabled] [Auto]

Boot Graphic Adapter Priority [PCI Express/Int-VGA]

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

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

Internal Graphics Mode Select [Enabled, 8MB]

Sets the internal graphics mode.

Conguration options: [Disabled] [Enabled, 1MB] [Enabled, 8MB]

2-24 Chapter 2: BIOS setup

DVMT Mode Select [DVMT Mode]

Allows you to select the graphics memory type.

Conguration options: [Fixed MODE] [DVMT Mode] [Combo Mode]

DVMT/FIXED Memory [128MB] Configuration options: [64MB] [128MB] [Maximum DVMT]

Boot Display Device [Auto]

Conguration options: [Auto] [CRT on Port 0] [LFP on Port 2] [LFP on Port 3] [DFP on Port 2] [DFP on Port 3] [TV on Port 2] [TV on Port 3] [CRT-Port 0 & CRT-Port 2] [CRT-Port 0 & CRT-Port 3] [CRT-Port 0 & LFP-Port 2] [CRT-Port 0 & LFP-Port 3] [CRT-Port 0 & DFP-Port 2] [CRT-Port 0 & DFP-Port 3] [DFP-Port 2 & DFP-Port 3]

TV Connector [Auto]

Conguration options: [Auto] [Composite] [Component] [Composite & RGB] [SVideo] [SCART Composite] [SCART Compos.&RGB] [SCART Compos & S-Vdo] [SMPTE2353 Compon. RGB]

HDTV Output [Auto]

Conguration options: [Auto] [480i60] [480p60] [576i50] [576p50] [720p60] [1080i50] [1080i60] [1080p24] [1080p25] [1080p30] [1080p50] [1080p60]

TV Standard [VBIOS-Default]

Conguration options: [VBIOS-Default] [NTSC] [PAL] [SECAM] [SMPTE240M] [ITU-R television] [SMPTE295M] [SMPTE296M] [ETA-770.2] [EIA-770.3]

PEG Buffer Length [Auto]

Sets PCI Express graphics card buffer length. Conguration options: [Auto] [Long] [Short]

Link Latency [Auto]

Sets link latency. Conguration options: [Auto] [Slow] [Normal]

PEG Root Control [Auto]

Enables, disables or set to Auto of the link latency.

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

Slot Power [Auto]

Sets the slot power. Conguration options: [Auto] [Light] [Normal] [Heavy] [Heavier]

High Priority Port Select [Disabled]

Selects the high priority port. Conguration options: [Disabled] [PCI Express Port 2]

ASUS P5GC-MX/GBL 2-25

2.4.5 Onboard Devices Conguration

Congure Win627DHG Super IO Chipset

HD Audio Controller [Enabled]

Front Panel Support Type [HD Audio] Onboard PCIEX Gigabit LAN [Enabled] LAN Option ROM [Disabled]

Serial Port1 Address [3F8/IRQ4] Parallel Port Address [378] Parallel Port Mode [ECP] ECP Mode DMA Channel [DMA3] Parallel Port IRQ [IRQ7]

Enable or Disable High Denition Audio Controller

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

HD Audio Controller [Enabled]

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

Front Panel Support Type [AC97]

Allows you to set the front panel audio connector (AAFP) mode to legacy

AC’97 or high-denition audio depending on the audio standard that the front panel audio module supports. Conguration options: [AC97][HD Audio]

Onboard PCIEX Gigabit LAN [Enabled]

Allows you to enable or disable the onboard PCIe Gigabit LAN controller.

Conguration options: [Enabled] [Disabled]

LAN Option ROM [Disabled]

Allows you to enable or disable the option 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]

Parallel Port Address [378]

Allows you to select the Parallel Port base addresses.

Conguration options: [Disabled] [378] [278] [3BC]

2-26 Chapter 2: BIOS setup

Parallel Port Mode [ECP]

Allows you to select the Parallel Port mode.

Conguration options: [Normal] [Bi-Directional] [EPP] [ECP]

ECP Mode DMA Channel [DMA3]

Appears only when the Parallel Port Mode is set to [ECP]. This item

allows you to set the Parallel Port ECP DMA.

Conguration options: [DMA0] [DMA1] [DMA3]

Parallel Port IRQ [IRQ7]

Conguration options: [IRQ5] [IRQ7]

2.4.6 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

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]

BIOS SETUP UTILITY

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.

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

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]

ASUS P5GC-MX/GBL 2-27

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 pallete 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]

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]

2-28 Chapter 2: BIOS setup

2.5 Power menu

The Power menu items allow you to change the settings for the Advanced

Conguration and Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then press <Enter> to display the conguration options.

Main Advanced Power Boot Tools Exit

Suspend Mode [Auto]

ACPI 2.0 Support [Disabled] ACPI APIC support [Enabled]

APM Conguration Hardware Monitor

BIOS SETUP UTILITY

Select the ACPT state used for System Suspend.

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

2.5.1 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] [S3 Only] [Auto]

2.5.2 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]

2.5.3 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]

ASUS P5GC-MX/GBL 2-29

2.5.4 APM Conguration

Power

APM Conguration

Restore on AC Power Loss [Power Off]

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

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 [Enabled]

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]

BIOS SETUP UTILITY

Go into On/Off or

Suspend when Power button is pressed.

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

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 power on.

2-30 Chapter 2: BIOS setup

Power On By PCI Devices [Disabled]

When set to [Enabled], this parameter allows you to turn on the system through a PCI LAN or modem card. This feature requires an ATX power supply that provides

at least 1A on the +5VSB lead.

Conguration options: [Disabled] [Enabled]

Power On By PCIE Devices [Disabled]

When set to [Enabled], this parameter allows you to turn on the system through a PCI Express LAN card. This feature requires an ATX power supply that provides at

least 1A on the +5VSB lead.

Conguration options: [Disabled] [Enabled]

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]

ASUS P5GC-MX/GBL 2-31

2.5.5 Hardware Monitor

Power

Hardware Monitor

CPU Temperature [49.5ºC/121ºF]

CPU Fan Speed [2909RPM] CPU Q-Fan Control [Disabled] Chassis Fan Speed (RPM) [N/A]

VCORE Voltage [ 1.288V]

3.3V Voltage [ 3.184V] 5V Voltage [ 4.948V] 12V Voltage [11.985V]

CPU Temperature [xxxC/xxxF]

The onboard hardware monitor automatically detects and displays the motherboard

and CPU temperatures. Select [Ignored] if you do not wish to display the detected

temperatures.

Conguration options: [Ignored] [xxxC/xxxF]

CPU Fan Speed [xxxxRPM] or [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. Conguration options: [Ignored] [xxxRPM]

BIOS SETUP UTILITY

CPU Temperature

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

CPU Q-Fan Control [Disabled]

Allows you to enable or disable the ASUS Q-Fan feature that smartly adjusts the

fan speeds for more efcient system operation. Conguration options: [Disabled] [Enabled]

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

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

specic eld shows N/A. Conguration options: [Ignored] [N/A]

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

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

2-32 Chapter 2: BIOS setup

2.6 Boot menu

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

Main Advanced Power Boot Tools Exit

Boot Settings

Boot Device Priority

Boot Settings Conguration Security

BIOS SETUP UTILITY

Species the Boot Device Priority sequence.

A virtual oppy disk drive (Floppy Drive B:) may appear when you set the CD-ROM drive as the rst boot device.

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

2.6.1 Boot Device Priority

Boot

Boot Device Priority

1st Boot Device [1st FLOPPY DRIVE]

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

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

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: [xxxxx Drive] [ATAPI CD-ROM] [Disabled]

BIOS SETUP UTILITY

Species the Boot Device Priority sequence.

A device enclosed in parenthesis has

ASUS P5GC-MX/GBL 2-33

2.6.2 Boot Settings Conguration

Boot Settings Conguration

Quick Boot [Enabled]

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

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.

Add On ROM Display Mode [Force BIOS]

Sets the display mode for option ROM.

Conguration options: [Force BIOS] [Keep Current]

Bootup Num-Lock [On]

Allows you to select the power-on state for the NumLock.

Conguration options: [Off] [On]

PS/2 Mouse Support [Auto]

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

Wait for ‘F1’ If Error [Enabled]

When set to Enabled, the system waits for the F1 key to be pressed when error

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

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]

2-34 Chapter 2: BIOS setup

Interrupt 19 Capture [Disabled]

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

2.6.3 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 Change Supervisor Password item and press <Enter>.

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

3. 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.

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

ASUS P5GC-MX/GBL 2-35

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

Security Settings

Supervisor Password : Not Installed

User Password : Not Installed

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

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.

2-36 Chapter 2: BIOS setup

Password Check [Setup]

When set to [Setup], BIOS checks for user password when accessing the Setup utility. When set to [Always], BIOS checks for user password both when accessing

Setup and booting the system.

Conguration options: [Setup] [Always]

2.7 Tools menu

The Tools menu items allow you to launch special functions. Select an item then press <Enter> to display the sub-menu.

Main Advanced Power Boot Tools Exit

ASUS EZ Flash 2

Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation message appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to conrm your choice. See section 2.1.2 for details.

BIOS SETUP UTILITY

Press ENTER to run the utility to select and update BIOS. This utility doesn't

support :

1.NTFS format

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

FLASH TYPE: MXIC 25L8005

PATH: A:\

ASUSTek EZ Flash 2 BIOS ROM Utility V3.20

Current ROM

BOARD: P5GC-MX GBL

VER: 0102 (H:00 B:00) DATE: 11/08/07

Note

[Enter] Select or Load [B] Backup [ESC] Exit

[Tab] Switch [Up/Down/Home/End] Move

Update ROM

BOARD: Unknown

VER: Unknown DATE: Unknown

ASUS P5GC-MX/GBL 2-37

• This function can not support IDE CD-ROM, IDE DVD-ROM, or External SATA devices.

• This function only supports FAT 32/16 format.

2.8 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.

Main Advanced Power Boot Tools Exit

Exit Options

Exit & Save Changes

Exit & Discard Changes Discard Changes

Load Setup Defaults

BIOS SETUP UTILITY

Exit system setup after saving the changes.

F10 key can be used for this operation.

Select Screen

Select Item

Change Field

Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit

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.

2-38 Chapter 2: BIOS setup

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.

ASUS P5GC-MX/GBL 2-39

2-40 Chapter 2: BIOS setup

This chapter describes the contents of the support CD that comes with the motherboard package.

Software

support

3.1 Installing an operating system

This motherboard supports Windows® 2000/XP/Vista operating systems (OS).

Always install the latest OS version and corresponding updates to maximize the

features of your hardware.

• Motherboard settings and hardware options vary. Use the setup procedures presented in this chapter for reference only. Refer to your OS documentation for detailed information.

• Make sure that you install Windows XP Service Pack 1 or later versions before installing the drivers for better compatibility and system stability.

2000 Service Pack 4 or the Windows®

3.2 Support CD information

The support CD that came with the motherboard package contains the drivers, software applications, and utilities that you can install to avail all motherboard features.

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

3.2.1 Running the support CD

Place the support CD to the 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.

3-2 Chapter 3: Software support

3.2.2 Drivers menu

The drivers menu shows the available device drivers if the system detects installed devices. Install the necessary drivers to activate the devices.

ASUS InstAll - Installation Wizard for Drivers

Launches the ASUS InstallAll driver installation wizard.

Intel Chipset Inf Update Program

This item installs the Intel® Chipset INF Update Program. This driver enables Plug-n-Play INF support for the Intel® chipset components on the motherboard.

When installed to the target system, this driver provides the method for conguring

the chipset components.

You can install this utility using three different modes: interactive, silent, or

unattended preload. Installing the driver in interactive mode requires user input during installation. User input is not required when installing the driver in silent or unattended preload modes. Refer to the online help or readme le that came with

the utility for details.

Intel Graphics Accelerator Driver

Installs the Intel Graphics Accelerator driver.

Realtek Audio Driver

Installs the Realtek Audio driver.

Atheros RTL8111B/C 10/100/1000M LAN Driver

Installs the RTL8111B/C 10/100/1000M LAN Driver.

ASUS P5GC-MX/GBL 3-3

3.2.3 Utilities menu

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

ASUS InstAll - Installation Wizard for Utilities

Launches the ASUS InstallAll utilities installation wizard.

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).

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.

You can also install the following utilities from the ASUS Superb Software Library CD.

3-4 Chapter 3: Software support

Anti-Virus Utility

The anti-virus application detects and protects your computer from viruses that destroys data.

Anti-Virus Utility

Downloads Anti-Virus Utility from the Internet.

Corel Snapre Plus SE

Installs the Corel Snapre Plus SE software.

DVD Copy5 Trial

Installs the WinDVD Copy5 Trial version.

ADOBE Acrobat Reader V7.0

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

Microsoft DirectX 9.0c

Installs the Microsoft® DirectX 9.0c driver. The Microsoft DirectX® 9.0c is a multimedia technology that enhances computer graphics and sound. DirectX® improves the multimedia features of you computer so you can enjoy watching TV and movies, capturing videos, or playing games in your computer. Visit the Microsoft website (www.microsoft.com) for updates.

ASUS Motherboard Installation Guide

Click to open the ASUS Motherboard Installation Guide.

The installation guide is in Portable Document Format (PDF). Install the

Adobe® Acrobat® Reader from the ASUS Superb Software Library CD before

opening the guide.

ASUS P5GC-MX/GBL 3-5

3.2.4 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.

3-6 Chapter 3: Software support

The Appendix describes the CPU features that the motherboard supports.

CPU features

A.1 Intel® EM64T

• The motherboard is fully compatible with Intel® Pentium® 4 LGA775

processors running on 32-bit operating systems.

• The motherboard comes with a BIOS le that supports EM64T. You can download the latest BIOS le from the ASUS website (www.asus.com/ support/download/) if you need to update the BIOS le.

• Visit www.intel.com for more information on the EM64T feature.

• Visit www.microsoft.com for more information on Windows

Make sure to choose the right BIOS les according to the version of your

mother board. Refer to your Printed Circuit Board (PCB) for version information.

Using the Intel® EM64T feature

To use the Intel® EM64T feature:

1. Install an Intel

2. Install a 64-bit operating system (Windows

3. Install the 64-bit drivers for the motherboard components and devices from the support CD.

4. Install the 64-bit drivers for expansion cards or add-on devices, if any.

Pentium® 4 CPU that supports the Intel® EM64T.

XP Professional x64 Edition).

Refer to the expansion card or add-on device(s) documentation, or visit the

related website, to verify if the card/device supports a 64-bit system.

64-bit OS.

A.2 Enhanced Intel SpeedStep®

Technology (EIST)

• The motherboard comes with a BIOS le that supports EIST. You can download the latest BIOS le from the ASUS website (www.asus.com/ support/download/) if you need to update the BIOS. See Chapter 2 for

details.

• Visit www.intel.com for more information on the EIST feature.

A.2.1 System requirements

Before using EIST, check your system if it meets the following requirements:

• Intel

• BIOS le with EIST support

• Operating system with EIST support (Windows

A-2 Appendix: CPU features

Pentium® 4 processor with EIST support

later versions)

XP SP2/Linux 2.6 kernel or

A.2.2 Using the EIST

To use the EIST feature:

1. Turn on the computer, then enter the BIOS Setup.

2. Go to the Advanced Menu, highlight CPU Conguration, then press <Enter>.

3. Set the Intel(R) SpeedStep Technology item to [Automatic],

then press <Enter>.

4. Press <F10> to save your changes and exit the BIOS setup.

5. After the computer restarts, right click on a blank space on the desktop, then select Properties from the pop-up menu.

6. When the Display Properties window appears, click the Screen Saver tab.

7. Click the Power button on the Monitor power section to open the Power Options Properties window.

8. On the Power schemes section,

click , then select any option except Home/Ofce Desktop or Always On.

9. Click Apply, then click OK.

10. Close the Display Properties

window.

After you adjust the power scheme,

the CPU internal frequency slightly

decreases when the CPU loading is low.

The screen displays and procedures may vary depending on the operating system.

ASUS P5GC-MX/GBL

A-3

A.3 Intel® Hyper-Threading Technology

• The motherboard supports Intel® Pentium® 4 LGA775 processors with Hyper-Threading Technology.

• Hyper-Threading Technology is supported under Windows

2.4.x (kernel) and later versions only. Under Linux, use the Hyper-

Threading compiler to compile the code. If you are using any other operating systems, disable the Hyper-Threading Techonology item in the BIOS to ensure system stability and performance.

• Installing Windows

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

• For more information on Hyper-Threading Technology, visit www.intel.

com/info/hyperthreading.

XP Service Pack 1 or later version is recommended.

Using the Hyper-Threading Technology

To use the Hyper-Threading Technology:

1. Install an Intel

2. Power up the system and enter the BIOS Setup. Under the Advanced Menu,

make sure that the item Hyper-Threading Technology is set to Enabled.

The BIOS item appears only if you installed a CPU that supports

Hyper-Threading Technology.

3. Restart the computer.

Pentium® 4 CPU that supports Hyper-Threading Technology.

XP and Linux

A-4 Appendix: CPU features

Asus P5GC-MX User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual