G31M-GS / G31M-S User Manual
Version 1.1 Published September 2008 Copyright2008 ASRock INC. All rights reserved.

Copyright Notice:

No part of this manual may be reproduced, transcribed, transmitted, or translated in any language, in any form or by any means, except duplication of documentation by the purchaser for backup purpose, without written consent of ASRock Inc. Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners benefit, without intent to infringe.

Disclaimer:

Specifications and information contained in this manual are furnished for informational use only and subject to change without notice, and should not be constructed as a commitment by ASRock. ASRock assumes no responsibility for any errors or omissions that may appear in this manual. With respect to the contents of this manual, ASRock does not provide warranty of any kind, either expressed or implied, including but not limited to the implied warranties or conditions of merchantability or fitness for a particular purpose. In no event shall ASRock, 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 data, interruption of business and the like), even if ASRock has been advised of the possibility of such damages arising from any defect or error in the manual or product.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. CALIFORNIA, USA ONLY The Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance controlled in Perchlorate Best Management Practices (BMP) regulations passed by the California Legislature. When you discard the Lithium battery in California, USA, please follow the related regulations in advance. Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/perchlorate ASRock Website: http://www.asrock.com

Contents

1 Introduction... 5
1.1 1.2 1.3 1.4 Package Contents... Specifications... Motherboard Layout... I/O Panel... 10 11

2 Installation... 12

2.1 Screw Holes.. 12 2.2 Pre-installation Precautions.. 12 2.3 CPU Installation.. 13 2.4 Installation of Heatsink and CPU fan. 15 2.5 Installation of Memory Modules (DIMM).. 16 2.6 Expansion Slots (PCI and PCI Express Slots). 17 2.7 Jumpers Setup... 18 2.8 Onboard Headers and Connectors.. 20 2.9 SATAII Hard Disk Setup Guide.. 24 2.10 Serial ATA (SATA) / Serial ATAII (SATAII) Hard Disks Installation... 25 2.11 Driver Installation Guide... 25 2.12 Untied Overclocking Technology. 25
SETUP 3 BIOS S ETUP UTILITY.. 26
3.1 Introduction... 3.1.1 BIOS Menu Bar... 3.1.2 Navigation Keys.. 3.2 Main Screen.. 3.3 Smart Screen... 3.4 Advanced Screen.. 3.4.1 CPU Configuration.. 3.4.2 Chipset Configuration.. 3.4.3 ACPI Configuration.. 3.4.4 IDE Configuration.. 3.4.5 PCIPnP Configuration.. 3.4.6 Floppy Configuration.. 3.4.7 Super IO Configuration.. 3.4.8 USB Configuration.. 3.5 Hardware Health Event Monitoring Screen.. 3.6 Boot Screen.. 3.6.1 Boot Settings Configuration.. 3.7 Security Screen.. 3.8 Exit Screen... 44

4 Software Support.. 45

4.1 Install Operating System.. 4.2 Support CD Information... 4.2.1 Running Support CD.. 4.2.2 Drivers Menu.. 4.2.3 Utilities Menu... 4.2.4 Contact Information.. 45 45

Chapter 1 Introduction

Thank you for purchasing ASRock G31M-GS / G31M-S motherboard, a reliable motherboard produced under ASRocks consistently stringent quality control. It delivers excellent performance with robust design conforming to ASRocks commitment to quality and endurance. In this manual, chapter 1 and 2 contain introduction of the motherboard and step-by-step guide to the hardware installation. Chapter 3 and 4 contain the configuration guide to BIOS setup and information of the Support CD.
Because the motherboard specifications and the BIOS software might be updated, the content of this manual will be subject to change without notice. In case any modifications of this manual occur, the updated version will be available on ASRock website without further notice. You may find the latest VGA cards and CPU support lists on ASRock website as well. ASRock website http://www.asrock.com If you require technical support related to this motherboard, please visit our website for specific information about the model you are using. www.asrock.com/support/index.asp

Pack ackage 1.1 P ack age Contents
ASRock G31M-GS / G31M-S Motherboard (Micro ATX Form Factor: 9.6-in x 7.5-in, 24.4 cm x 19.1 cm) ASRock G31M-GS / G31M-S Quick Installation Guide ASRock G31M-GS / G31M-S Support CD One 80-conductor Ultra ATA 66/100 IDE Ribbon Cable (Optional) One Serial ATA (SATA) Data Cable (Optional) One Serial ATA (SATA) HDD Power Cable (Optional) One I/O Panel Shield

Specifications

- Micro ATX Form Factor: 9.6-in x 7.5-in, 24.4 cm x 19.1 cm - LGA 775 for Intel CoreTM 2 Extreme / CoreTM 2 Quad / CoreTM 2 Duo / Pentium Dual Core / Celeron Dual Core / Celeron, supporting Penryn Quad Core Yorkfield and Dual Core Wolfdale processors - Compatible with all FSB1600/1333/1066/800MHz CPUs (see CAUTION 1) - Supports Hyper-Threading Technology (see CAUTION 2) - Supports Untied Overclocking Technology (see CAUTION 3) - Supports EM64T CPU - Northbridge: Intel G31 - Southbridge: Intel ICH7 - Dual Channel DDR2 Memory Technology (see CAUTION 4) - 2 x DDR2 DIMM slots - Supports DDR2 800/667 non-ECC, un-buffered memory (see CAUTION 5) - Max. capacity of system memory: 8GB (see CAUTION 6) - 1 x PCI Express x16 slot - 1 x PCI Express x1 slot - 2 x PCI slots - Intel Graphics Media Accelerator 3100 - Pixel Shader 2.0, DirectX 9.0 - Max. shared memory 384MB (see CAUTION 7) - 5.1 CH Windows VistaTM Premium Level HD Audio (Realtek ALC662 Audio Codec) - G31M-GS Realtek PCIE x 1 Gigabit LAN RTL8111DL, speed 10/100/1000 Mb/s - G31M-S Realtek PCIE x1 LAN 8102EL, speed 10/100 Mb/s - Supports Wake-On-LAN I/O Panel - 1 x PS/2 Mouse Port - 1 x PS/2 Keyboard Port - 1 x Serial Port: COM1 - 1 x VGA Port - 4 x Ready-to-Use USB 2.0 Ports - 1 x RJ-45 LAN Port - HD Audio Jack: Line in / Front Speaker / Microphone

Platform CPU

Chipset Memory

Expansion Slot

Graphics

Audio LAN

Rear Panel I/O

Connector

BIOS Feature
Support CD Unique Feature

Hardware Monitor

OS Certifications
- 4 x SATAII 3.0 Gb/s connectors (No Support for RAID and Hot Plug functions) (see CAUTION 8) - 1 x ATA100 IDE connector (supports 2 x IDE devices) - 1 x Floppy connector - 1 x Print port header - CPU/Chassis FAN connector - 24 pin ATX power connector - 4 pin 12V power connector - CD in header - Front panel audio connector - 2 x USB 2.0 headers (support 4 USB 2.0 ports) (see CAUTION 9) - 4Mb AMI BIOS - AMI Legal BIOS - Supports Plug and Play - ACPI 1.1 Compliance Wake Up Events - Supports jumperfree - AMBIOS 2.3.1 Support - Supports Smart BIOS - Drivers, Utilities, AntiVirus Software (Trial Version) - ASRock OC Tuner (see CAUTION 10) - Intelligent Energy Saver (see CAUTION 11) - Hybrid Booster: - CPU Frequency Stepless Control (see CAUTION 12) - ASRock U-COP (see CAUTION 13) - Boot Failure Guard (B.F.G.) - CPU Temperature Sensing - Chassis Temperature Sensing - CPU Fan Tachometer - Chassis Fan Tachometer - CPU Quiet Fan - Voltage Monitoring: +12V, +5V, +3.3V, Vcore - Microsoft Windows 2000 / XP / XP 64-bit / VistaTM / VistaTM 64-bit compliant - FCC, CE

* For detailed product information, please visit our website: http://www.asrock.com
WARNING Please realize that there is a certain risk involved with overclocking, including adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using the thirdparty overclocking tools. Overclocking may affect your system stability, or even cause damage to the components and devices of your system. It should be done at your own risk and expense. We are not responsible for possible damage caused by overclocking.

CAUTION!

1. FSB1600-CPU will operate in overclocking mode. Under this situation, PCIE frequency will also be overclocked to 120MHz. Besides, if you want to overclock the CPU you adopt from FSB800 to FSB1066, you need to 2. 3. 4. adjust the jumpers. Please refer to page 19 for proper jumper settings. About the setting of Hyper Threading Technology, please check page 32. This motherboard supports Untied Overclocking Technology. Please read Untied Overclocking Technology on page 25 for details. This motherboard supports Dual Channel Memory Technology. Before you implement Dual Channel Memory Technology, make sure to read the installation guide of memory modules on page 16 for proper installation. Please check the table below for the CPU FSB frequency and its corresponding memory support frequency. CPU FSB Frequency Memory Support Frequency 6. DDRDDR2 667, DDRDDR2 667, DDRDDR2 667, DDR2 800
Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows XP and Windows VistaTM. For Windows XP 64-bit and Windows VistaTM 64bit with 64-bit CPU, there is no such limitation.
The maximum shared memory size is defined by the chipset vendor and is subject to change. Please check Intel website for the latest information. Before installing SATAII hard disk to SATAII connector, please read the SATAII Hard Disk Setup Guide on page 24 to adjust your SATAII hard disk drive to SATAII mode. You can also connect SATA hard disk to SATAII connector directly.
Power Management for USB 2.0 works fine under Microsoft Windows VistaTM 64-bit / VistaTM / XP 64-bit / XP SP1 or SP2 / 2000 SP4.
10. It is a user-friendly ASRock overclocking tool which allows you to surveil your system by hardware monitor function and overclock your hardware devices to get the best system performance under Windows environment. Please visit our website for the operation procedures of ASRock OC Tuner. ASRock website: http://www.asrock.com
11. Featuring an advanced proprietary hardware and software design, Intelligent Energy Saver is a revolutionary technology that delivers unparalleled power savings. In other words, it is able to provide exceptional power saving and improve power efficiency without sacrificing computing performance. Please visit our website for the operation procedures of Intelligent Energy Saver. ASRock website: http://www.asrock.com 12. Although this motherboard offers stepless control, it is not recommended to perform over-clocking. Frequencies other than the recommended CPU bus frequencies may cause the instability of the system or damage the CPU. 13. While CPU overheat is detected, the system will automatically shutdown. Before you resume the system, please check if the CPU fan on the motherboard functions properly and unplug the power cord, then plug it back again. To improve heat dissipation, remember to spray thermal grease between the CPU and the heatsink when you install the PC system.

1.3 Motherboard Layout

19.1cm (7.5 in)

PS2 Keyboard

PS2 Mouse

PS2_USB_PWR1

CPU_FAN1

Dual Channel

DDR2 800

FSB1600

DDRII_1 (64 bit, 240-pin module)
DDRII_2 (64 bit, 240-pin module)

FSB800

USB 2.0 T: USB2 B: USB3 USB 2.0 T: USB0 Top: RJ-45 B: USB1

ATX12V1

OC 800 FSB0 FSB1
Center: Line Out Bottom: Mic In Top: Line In

Intel G31 Chipset

24.4cm (9.6 in)

COM1 VGA1

LAN PHY

CLRCMOS1

Super IO

CMOS Battery

SATAII_3 SATAII_4

Intel ICH7

PANEL 1 PLED PWRBTN

AUDIO CODEC

HD_AUDIO1

FLOPPY1

USB4_5

USB6_7

SPEAKER1

4Mb BIOS

CHA_FAN1

HDLED RESET

SATAII_1
PS2_USB_PWR1 Jumper 775-Pin CPU Socket North Bridge Controller CPU Fan Connector (CPU_FAN1) 2 x 240-pin DDR2 DIMM Slots (Dual Channel: DDRII_1, DDRII_2; Yellow) ATX Power Connector (ATXPWR1) IDE1 Connector (IDE1, Blue) Clear CMOS Jumper (CLRCMOS1) South Bridge Controller Third SATAII Connector (SATAII_3; Orange) Fourth SATAII Connector (SATAII_4; Orange) Secondary SATAII Connector (SATAII_2; Red) Primary SATAII Connector (SATAII_1; Red) Chassis Speaker Header (SPEAKER 1, Purple)
USB 2.0 Header (USB6_7, Blue) USB 2.0 Header (USB4_5, Blue) System Panel Header (PANEL1, Orange) BIOS SPI Chip Chassis Fan Connector (CHA_FAN1) Floppy Connector (FLOPPY1) Front Panel Audio Header (HD_AUDIO1, Lime) PCI Slots (PCI1- 2) Internal Audio Connector: CD1 (Black) PCI Express x16 Slot (PCIE2) PCI Express x1 Slot (PCIE1) Print Port Header (LPT1, Purple) OC 800 / FSB0 / FSB1 Jumper ATX 12V Connector (ATX12V1)

SATAII_2

Panel 1.4 I/O Panel
PS/2 Mouse Port (Green) USB 2.0 Ports (USB23) RJ-45 Port Line In (Light Blue) Line Out (Lime)
Microphone (Pink) USB 2.0 Ports (USB01) VGA Port COM Port PS/2 Keyboard Port (Purple)
* To enable Multi-Streaming function, you need to connect a front panel audio cable to the front panel audio header. Please refer to below steps for the software setting of Multi-Streaming. For Windows XP: After restarting your computer, you will find Mixer tool on your system. Please select Mixer ToolBox , click Enable playback multi-streaming, and click ok. Choose 2CH or 4CH and then you are allowed to select Realtek HDA Primary output to use Rear Speaker and Front Speaker, or select Realtek HDA Audio 2nd output to use front panel audio. Then reboot your system. For Windows VistaTM: After restarting your computer, please double-click Realtek HD Audio Manager on the system tray. Set Speaker Configuration to Quadraphonic or Stereo. Click Device advanced settings, choose Make front and rear output devices playbacks two different audio streams simultaneously, and click ok. Then reboot your system.

Description Short pin2, pin3 to enable (see p.10 No. 1) +5VSB (standby) for PS/2 +5V +5VSB or USB wake up events. Note: To select +5VSB, it requires 2 Amp and higher standby current provided by power supply. Clear CMOS
(CLRCMOS1, 2-pin jumper) (see p.10 No. 8)

2-pin jumper

Note: CLRCMOS1 allows you to clear the data in CMOS. The data in CMOS includes system setup information such as system password, date, time, and system setup parameters. To clear and reset the system parameters to default setup, please turn off the computer and unplug the power cord from the power supply. After waiting for 15 seconds, use a jumper cap to short 2 pins on CLRCMOS1 for 5 seconds.
OC 800 / FSB0 / FSB1 Jumper
(OC 800 / FSB0 / FSB1, 3-pin jumper, see p.10 No. 27)

1_2 1_2

Default
Note: If you want to overclock the FSB800-CPU (e.g. Cel400, E1000, E2000, E4000, E5000, E6000 series CPU) to FSB1066 on this motherboard, you need to adjust the jumpers. Please short pin2, pin3 for OC800 jumper. Otherwise, the CPU may not work properly on this motherboard. Please refer to below jumper settings.

2_3 1_2 1_2

2.8 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage of the motherboard!

FDD connector

(33-pin FLOPPY1) (see p.10 No. 20)

Pin1 FLOPPY1

the red-striped side to Pin1
Note: Make sure the red-striped side of the cable is plugged into Pin1 side of the connector. Primary IDE connector (Blue)
(39-pin IDE1, see p.10 No. 7)
connect the black end connect the blue end to the IDE devices to the motherboard 80-conductor ATA 66/100 cable Note: Please refer to the instruction of your IDE device vendor for the details. Serial ATAII Connectors
(SATAII_1: see p.10, No. 13) (SATAII_2: see p.10, No. 12) (SATAII_3: see p.10, No. 10)
(SATAII_4: see p.10, No. 11)
Serial ATA (SATA) Data Cable

(Optional)

These Serial ATAII (SATAII) connectors support SATAII or SATA hard disk for internal storage devices. The current SATAII interface allows up to 3.0 Gb/s data transfer rate. Either end of the SATA data cable can be connected to the SATA / SATAII hard disk or the SATAII connector on the motherboard. Please connect the black end of SATA power cable to the power connector on each drive. Then connect the white end of SATA power cable to the power connector of the power supply.

SATAII_3

Serial ATA (SATA) Power Cable
connect to the SATA HDD power connector connect to the power supply

SATAII_4

USB 2.0 Headers
(9-pin USB6_7) (see p.10 No. 15)
USB_PWR P-7 P+7 GND DUMMY

GND P+6 P-6 USB_PWR

Besides four default USB 2.0 ports on the I/O panel, there are two USB 2.0 headers on this motherboard. Each USB 2.0 header can support two USB 2.0 ports.
(9-pin USB4_5) (see p.10 No. 16)
USB_PWR P-5 P+5 GND DUMMY 1 GND P+4 P-4 USB_PWR

Print Port Header

(25-pin LPT1) (see p.10 No. 26)
AFD# ERROR# PINIT# SLIN# GND
This is an interface for print port cable that allows convenient connection of printer devices.
SPD7 SPD6 ACK# SPD5 BUSY SPD4 PE SPD3 SLCT SPD2 SPD1 SPD0 STB#

Internal Audio Connector

(4-pin CD1) (CD1: see p.10 No. 23)

CD-L GND GND CD-R

This connector allows you to receive stereo audio input from sound sources such as a CD-ROM, DVD-ROM, TV tuner card, or MPEG card. This is an interface for front panel audio cable that allows convenient connection and control of audio devices.

Front Panel Audio Header

(9-pin HD_AUDIO1) (see p.10 No. 21)
GND PRESENCE# MIC_RET OUT_RET
OUT2_L J_SENSE OUT2_R MIC2_R MIC2_L
1. High Definition Audio supports Jack Sensing, but the panel wire on the chassis must support HDA to function correctly. Please follow the instruction in our manual and chassis manual to install your system. 2. If you use AC97 audio panel, please install it to the front panel audio header as below: A. Connect Mic_IN (MIC) to MIC2_L. B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L. C. Connect Ground (GND) to Ground (GND).
D. MIC_RET and OUT_RET are for HD audio panel only. You dont need to connect them for AC97 audio panel. E. Enter BIOS Setup Utility. Enter Advanced Settings, and then select Chipset Configuration. Set the Front Panel Control option from [Auto] to [Enabled]. F. Enter Windows system. Click the icon on the lower right hand taskbar to enter Realtek HD Audio Manager. For Windows 2000 / XP / XP 64-bit OS: Click Audio I/O, select Connector Settings , choose
Disable front panel jack detection, and save the change by clicking OK. For Windows VistaTM / VistaTM 64-bit OS: Click the right-top Folder icon , choose Disable front panel jack detection, and save the change by clicking OK. G. To activate the front mic. For Windows 2000 / XP / XP 64-bit OS: Please select Front Mic as default record device. If you want to hear your voice through front mic, please deselect "Mute" icon in Front Mic of Playback portion. For Windows VistaTM / VistaTM 64-bit OS: Go to the "Front Mic" Tab in the Realtek Control panel. Click "Set Default Device" to make the Front Mic as the default record device.

PLED+ PLEDPWRBTN# GND

System Panel Header
(9-pin PANEL1) (see p.10 No. 17)
This header accommodates several system front panel functions.
DUMMY RESET# GND HDLEDHDLED+

Chassis Speaker Header

(4-pin SPEAKER 1) (see p.10 No. 14)

SPEAKER DUMMY DUMMY +5V

Please connect the chassis speaker to this header.

Chassis Fan Connector

(3-pin CHA_FAN1) (see p.10 No. 19)

GND +12V CHA_FAN_SPEED

Please connect a chassis fan cable to this connector and match the black wire to the ground pin. Please connect a CPU fan cable to this connector and match the black wire to the ground pin.

CPU Fan Connector

(4-pin CPU_FAN1) (see p.10 No. 4)
GND +12V CPU_FAN_SPEED FAN_SPEED_CONTROL
Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin CPU fan still can work successfully even without the fan speed control function. If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this motherboard, please connect it to Pin 1-3.
Pin 1-3 Connected 3-Pin Fan Installation

ATX Power Connector

(24-pin ATXPWR1) (see p.10 No. 6)
Please connect an ATX power supply to this connector.
Though this motherboard provides 24-pin ATX power connector, 12 it can still work if you adopt a traditional 20-pin ATX power supply. To use the 20-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 13.
20-Pin ATX Power Supply Installation

ATX 12V Connector

(4-pin ATX12V1) (see p.10 No. 28)
Please note that it is necessary to connect a power supply with ATX 12V plug to this connector so that it can provides sufficient power. Failing to do so will cause the failure to power up.
SAT SATAII Hard Disk Setup Guide
Before installing SATAII hard disk to your computer, please carefully read below SATAII hard disk setup guide. Some default setting of SATAII hard disks may not be at SATAII mode, which operate with the best performance. In order to enable SATAII function, please follow the below instruction with different vendors to correctly adjust your SATAII hard disk to SATAII mode in advance; otherwise, your SATAII hard disk may fail to run at SATAII mode. Western Digital
If pin 5 and pin 6 are shorted, SATA 1.5Gb/s will be enabled. On the other hand, if you want to enable SATAII 3.0Gb/s, please remove the jumpers from pin 5 and pin 6. SAMSUNG
If pin 3 and pin 4 are shorted, SATA 1.5Gb/s will be enabled. On the other hand, if you want to enable SATAII 3.0Gb/s, please remove the jumpers from pin 3 and pin 4. HITACHI Please use the Feature Tool, a DOS-bootable tool, for changing various ATA features. Please visit HITACHIs website for details: http://www.hitachigst.com/hdd/support/download.htm

The above examples are just for your reference. For different SATAII hard disk products of different vendors, the jumper pin setting methods may not be the same. Please visit the vendors website for the updates.
AT (SAT AT (SAT 2. Serial ATA (SATA) / Serial ATAII (SATAII) Hard Disks Installation
This motherboard adopts Intel ICH7 south bridge chipset that supports Serial ATA (SATA) / Serial ATAII (SATAII) hard disks. You may install SATA / SATAII hard disks on this motherboard for internal storage devices. This section will guide you to install the SATA / SATAII hard disks. STEP 1: Install the SATA / SATAII hard disks into the drive bays of your chassis. STEP 2: Connect the SATA power cable to the SATA / SATAII hard disk. STEP 3: Connect one end of the SATA data cable to the motherboards SATAII connector. STEP 4: Connect the other end of the SATA data cable to the SATA / SATAII hard disk.
2. Driver Installation Guide
To install the drivers to your system, please insert the support CD to your optical drive first. Then, the drivers compatible to your system can be auto-detected and listed on the support CD driver page. Please follow the order from up to bottom side to install those required drivers. Therefore, the drivers you install can work properly.
2. Untied Overclocking Technology Technology
This motherboard supports Untied Overclocking Technology, which means during overclocking, FSB enjoys better margin due to fixed PCI / PCIE buses. Before you enable Untied Overclocking function, please enter Overclock Mode option of BIOS setup to set the selection from [Auto] to [CPU, PCIE, Async.]. Therefore, CPU FSB is untied during overclocking, but PCI / PCIE buses are in the fixed mode so that FSB can operate under a more stable overclocking environment.
Please refer to the warning on page 8 for the possible overclocking risk before you apply Untied Overclocking Technology.
Chapter 3 BIOS SETUP UTILITY

3.1 Introduction

This section explains how to use the BIOS SETUP UTILITY to configure your system. The BIOS FWH chip on the motherboard stores the BIOS SETUP UTILITY. You may run the BIOS SETUP UTILITY when you start up the computer. Please press <F2> during the Power-On-Self-Test (POST) to enter the BIOS SETUP UTILITY, otherwise, POST will continue with its test routines. If you wish to enter the BIOS SETUP UTILITY after POST, restart the system by pressing <Ctl> + <Alt> + <Delete>, or by pressing the reset button on the system chassis. You may also restart by turning the system off and then back on. Because the BIOS software is constantly being updated, the following BIOS setup screens and descriptions are for reference purpose only, and they may not exactly match what you see on your screen.

3.1.1 BIOS Menu Bar

The top of the Main Advanced PCIPnP Boot screen has a menu bar with the following selections: To set up the system time/date information To set up the advanced BIOS features To set up the PCI features To set up the default system device to locate and load the Operating System Security To set up the security features Chipset To set up the chipset features Exit To exit the current screen or the BIOS SETUP UTILITY Use < > key or < > key to choose among the selections on the menu bar, and then press <Enter> to get into the sub screen.

3. 1. 2 Navigation Keys

Please check the following table for the function description of each navigation key. Navigation Key(s) / / + / <Enter> <F1> <F9> <F10> <ESC> Function Description Moves cursor left or right to select Screens Moves cursor up or down to select items To change option for the selected items To bring up the selected screen To display the General Help Screen To load optimal default values for all the settings To save changes and exit the BIOS SETUP UTILITY To jump to the Exit Screen or exit the current screen

3.2 Main Screen

When you enter the BIOS SETUP UTILITY, the Main screen will appear and display the system overview G31M-GS
BIOS SETUP UTILITY Advanced H/W Monitor Boot

Security

System Overview
System Time System Date BIOS Version Processor Type [14:00:09] [Thu 07/31/2008]
Use [Enter], [TAB] or [SHIFT-TAB] to select a field. Use [+] or [-] to configure system Time.
: G31M-GS P1.00 : Intel(R) Core(TM) 2 Duo CPU E6540 @ 2.33GHz (64bit) : 2333MHz Processor Speed Microcode Update : 6FB/B6 : 4096KB Cache Size Total Memory DDRII 1 DDRII 2 : 1024MB with 8MB shared memory and 1MB GTT memory : 1024MB/333MHz (DDRII667) : None

+Tab F1 F9 F10 ESC

Select Screen Select Item Change Field Select Field General Help Load Defaults Save and Exit Exit
v02.54 (C) Copyright 1985-2005, American Megatrends, Inc.
System Time [Hour:Minute:Second] Use this item to specify the system time. System Date [Day Month/Date/Year] Use this item to specify the system date.

G31M-S

Main Smart BIOS SETUP UTILITY Advanced H/W Monitor Boot Security Exit
: G31M-S P1.00 : Intel(R) Core(TM) 2 Duo CPU E6540 @ 2.33GHz (64bit) : 2333MHz Processor Speed Microcode Update : 6FB/B6 : 4096KB Cache Size Total Memory DDRII 1 DDRII 2 : 1024MB with 8MB shared memory and 1MB GTT memory : 1024MB/333MHz (DDRII667) : None

3.3 Smart Screen

In the Smart screen, you can load the BIOS setup according to your requirements.
BIOS SETUP UTILITY H/W Monitor Boot

Advanced

Smart Settings
Save Changes and Exit Load BIOS Defaults Load Performance Setup Default (IDE/SATA) Load Power Saving Setup Default

3.4.4 IDE Configuration

BIOS SETUP UTILITY Advanced IDE Configuration
ATA/IDE Configuration SATAII 1 SATAII 2 SATAII 3 SATAII 4 IDE1 Master IDE1 Slave [Enhanced] [Hard Disk] [Not Detected] [Not Detected] [Not Detected] [ATAPI CDROM] [Not Detected] Set [Compatible] when Legacy OS (MS-DOS, Win NT) device is used. Set [Enhanced] when Native OS (Win2000 / XP) is used.
Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit
ATA/IDE Configuration Please select [Compatible] when you install legacy OS (Windows NT). If native OS (Windows 2000 / XP) is installed, please select [Enhanced]. When [Compatible] is selected Combined Option It allows you to select between [SATA 1, SATA 2, SATA 3, SATA 4], [SATA 1, SATA 3, IDE 1], and [IDE 1, SATA 2, SATA 4]. If it is set to [SATA 1, SATA 3, IDE 1], then SATAII_2, SATAII_4 will not work. Likewise, if it is set to [IDE 1, SATA 2, SATA 4], then SATAII_1, SATAII_3 will not work.
Because Intel ICH7 south bridge only supports four IDE devices under legacy OS (Windows NT), you have to choose [SATA 1, SATA 2, SATA 3, SATA 4], [SATA 1, SATA 3, IDE 1], or [IDE 1, SATA 2, SATA 4] when the installed device is used with legacy OS. [SATA 1, SATA 2, SATA 3, SATA 4] Master Slave SATAII 1, SATAII 2 SATAII 3, SATAII 4 [SATA 1, SATA 3, IDE 1] SATAII 1 SATAII 3 [IDE 1, SATA 2, SATA 4] SATAII 2 SATAII 4
IDE Device Configuration You may set the IDE configuration for the device that you specify. We will use the Primary IDE Master as the example in the following instruction.
BIOS SETUP UTILITY Advanced Primary IDE Master
Device Vendor Size LBA Mode Block Mode PIO Mode Async DMA Ultra DMA S.M.A.R.T. Type LBA/Large Mode Block (Multi-Sector Transfer) PIO Mode DMA Mode S.M.A.R.T. 32Bit Data Transfer :Hard Disk :ST340014A :40.0 GB :Supported :16Sectors :4 :MultiWord DMA-2 :Ultra DMA-5 :Supported [Auto] [Auto] [Auto] [Auto] [Auto] [Disabled] [Enabled]
Select the type of device connected to the system.
TYPE Use this item to configure the type of the IDE device that you specify. Configuration options: [Not Installed], [Auto], [CD/DVD], and [ARMD]. [Not Installed]: Select [Not Installed] to disable the use of IDE device. [Auto]: Select [Auto] to automatically detect the hard disk drive. After selecting the hard disk information into BIOS, use a disk utility, such as FDISK, to partition and format the new IDE hard disk drives. This is necessary so that you can write or read data from the hard disk. Make sure to set the partition of the Primary IDE hard disk drives to active. [CD/DVD]: This is used for IDE CD/DVD drives. [ARMD]: This is used for IDE ARMD (ATAPI Removable Media Device), such as MO. LBA/Large Mode Use this item to select the LBA/Large mode for a hard disk > 512 MB under DOS and Windows; for Netware and UNIX user, select [Disabled] to disable the LBA/Large mode. Block (Multi-Sector Transfer) The default value of this item is [Auto]. If this feature is enabled, it will enhance hard disk performance by reading or writing more data during each transfer. PIO Mode Use this item to set the PIO mode to enhance hard disk performance by optimizing the hard disk timing. DMA Mode DMA capability allows the improved transfer-speed and data-integrity for compatible IDE devices.

S.M.A.R.T. Use this item to enable or disable the S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) feature. Configuration options: [Disabled], [Auto], [Enabled]. 32-Bit Data Transfer Use this item to enable 32-bit access to maximize the IDE hard disk data transfer rate.
3.4.5 PCIPnP Configuration
BIOS SETUP UTILITY Advanced Advanced PCI / PnP Settings
PCI Latency Timer PCI IDE BusMaster [32] [Enabled] Value in units of PCI clocks for PCI device latency timer register.
PCI Latency Timer The default value is 32. It is recommended to keep the default value unless the installed PCI expansion cards specifications require other settings. PCI IDE BusMaster Use this item to enable or disable the PCI IDE BusMaster feature.
3.4.6 Floppy Configuration
In this section, you may configure the type of your floppy drive.
BIOS SETUP UTILITY Advanced Floppy Configuration
Floppy A [1.44 MB 31 2"] Select the type of floppy drive connected to the system.
3.4.7 Super IO Configuration
BIOS SETUP UTILITY Advanced Configure Super IO Chipset
OnBoard Floppy Controller Serial Port Address Parallel Port Address Parallel Port Mode EPP Version ECP Mode DMA Channel Parallel Port IRQ [Enabled] [3F8 / IRQ4] [378] [ECP + EPP] [1.9] [DMA3] [IRQ7] Allow BIOS to Enable or Disable Floppy Controller.
v02.54 (C) Copyright 1985-2003, American Megatrends, Inc.
OnBoard Floppy Controller Use this item to enable or disable floppy drive controller. Serial Port Address Use this item to set the address for the onboard serial port or disable it. Configuration options: [Disabled], [3F8 / IRQ4], [2F8 / IRQ3], [3E8 / IRQ4], [2E8 / IRQ3]. Parallel Port Address Use this item to set the address for the onboard parallel port or disable it. Configuration options: [Disabled], [378], and [278].
Parallel Port Mode Use this item to set the operation mode of the parallel port. The default value is [ECP+EPP]. If this option is set to [ECP+EPP], it will show the EPP version in the following item, EPP Version. Configuration options: [Normal], [Bi-Directional], and [ECP+EPP]. EPP Version Use this item to set the EPP version. Configuration options: [1.9] and [1.7]. ECP Mode DMA Channel Use this item to set the ECP mode DMA channel. Configuration options: [DMA0], [DMA1], and [DMA3]. Parallel Port IRQ Use this item to set the IRQ for the parallel port. Configuration options: [IRQ5] and [IRQ7].

3.4.8 USB Configuration

BIOS SETUP UTILITY Advanced USB Configuration
USB Controller USB 2.0 Support Legacy USB Support [Enabled] [Enabled] [BIOS Setup Only] To enable or disable the onboard USB controllers.
USB Controller Use this item to enable or disable the use of USB controller. USB 2.0 Support Use this item to enable or disable the USB 2.0 support. Legacy USB Support Use this option to select legacy support for USB devices. There are four configuration options: [Enabled], [Auto], [Disabled] and [BIOS Setup Only]. The default value is [BIOS Setup Only]. Please refer to below descriptions for the details of these four options: [Enabled] - Enables support for legacy USB. [Auto] - Enables legacy support if USB devices are connected.

Full Screen Logo Use this item to enable or disable OEM Logo. The default value is [Enabled]. AddOn ROM Display Use this option to adjust AddOn ROM Display. If you enable the option Full Screen Logo but you want to see the AddOn ROM information when the system boots, please select [Enabled]. Configuration options: [Enabled] and [Disabled]. The default value is [Enabled].
Boot From Onboard LAN Use this item to enable or disable the Boot From Onboard LAN feature. Boot Up Num-Lock If this item is set to [On], it will automatically activate the Numeric Lock function after boot-up.

3.7 Security Screen

In this section, you may set or change the supervisor/user password for the system. For the user password, you may also clear it.

Security Settings

Supervisor Password User Password : Not Installed : Not Installed
Install or Change the password.
Change Supervisor Password Change User Password
Select Screen Select Item Change General Help Load Defaults Save and Exit Exit

3.8 Exit Screen

Exit Options
Save Changes and Exit Discard Changes and Exit Discard Changes Would you like to save current setting user defaults ? Save 1st User Defaults Load 1st User Defaults Save 2nd User Defaults Load 2nd User Defaults Save 3rd User Defaults Load 3rd User Defaults
Save Changes and Exit When you select this option, it will pop-out the following message, Save configuration changes and exit setup? Select [OK] to save the changes and exit the BIOS SETUP UTILITY. Discard Changes and Exit When you select this option, it will pop-out the following message, Discard changes and exit setup? Select [OK] to exit the BIOS SETUP UTILITY without saving any changes. Discard Changes When you select this option, it will pop-out the following message, Discard changes? Select [OK] to discard all changes. Would you like to save current setting user defaults? In this option, you are allowed to load and save three user defaults according to your own requirements.
Software Support Chapter 4 Sof tware Suppor t
4. 1 Install Operating System This motherboard supports various Microsoft Windows operating systems: 2000 / XP / XP 64-bit / VistaTM / VistaTM 64-bit. Because motherboard settings and hardware options vary, use the setup procedures in this chapter for general reference only. Refer to your OS documentation for more information. 4. 2 Support CD Information The Support CD that came with the motherboard contains necessary drivers and useful utilities that enhance the motherboard features. 4. 2. 1 Running The Support CD To begin using the support CD, insert the CD into your CD-ROM drive. The CD automatically displays the Main Menu if AUTORUN is enabled in your computer. If the Main Menu did not appear automatically, locate and double click on the file ASSETUP.EXE from the BIN folder in the Support CD to display the menus. 4. 2. 2 Drivers Menu The Drivers Menu shows the available devices drivers if the system detects installed devices. Please install the necessary drivers to activate the devices. 4. 2. 3 Utilities Menu The Utilities Menu shows the applications software that the motherboard supports. Click on a specific item then follow the installation wizard to install it. 4.2.4 Contact Information If you need to contact ASRock or want to know more about ASRock, welcome to visit ASRocks website at http://www.asrock.com; or you may contact your dealer for further information.