ASRock A790GXH 128M, A790GXH128M_830 Installation Guide

No part of this installation guide 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 guide 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:Disclaimer:

Disclaimer:

Disclaimer:Disclaimer:

Specifications and information contained in this guide 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 guide. With respect to the contents of this guide, 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 guide 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

Published January 2009

ASRock A790GXH/128M Motherboard

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Motherboard LayoutMotherboard Layout

Motherboard Layout

Motherboard LayoutMotherboard Layout

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1 PS2_USB_PW1 Jumper 21 Chassis Speaker Header 2 ATX 12V Power Connector (ATX12V1) (SPEAKER 1, Purple) 3 CPU Heatsink Retention Module 22 Chassis Fan Connector (CHA_FAN1) 4 AM2 940-Pin CPU Socket 23 USB 2.0 Header (USB8_9, Blue) 5 CPU Fan Connector (CPU_FAN1) 24 USB 2.0 Header (USB6_7, Blue) 6 2 x 240-pin DDR2 DIMM Slots 25 SPI Flash Memory (8Mb)

(Dual Channel A: DDRII_1, DDRII_2; Yellow) 26 USB 2.0 Header (USB10_11, Blue)

7 2 x 240-pin DDR2 DIMM Slots 27 Infrared Module Header (IR1)

(Dual Channel B: DDRII_3, DDRII_4; Orange) 28 Floppy Connector (FLOPPY1) 8 ATX Power Connector (ATXPWR1) 29 Serial Port Connector (COM1) 9 Primary IDE Connector (IDE1, Blue) 30 Front Panel Audio Header 10 North Bridge Fan Connector (NB_FAN1) (HD_AUDIO1, Lime) 11 Clear CMOS Jumper (CLRCMOS1) 31 Internal Audio Connector: CD1 (Black) 12 PCI Express x1 Slot (PCIE3; Green) 32 HDMI_SPDIF Header 13 Southbridge Controller (HDMI_SPDIF1, Yellow) 14 Fifth SATAII Connector (SATAII_5, Red) 33 PCI Slots (PCI1- 2) 15 Sixth SATAII Connector (SATAII_6, Red) 34 PCI Express 2.0 x16 Slot 16 Primary SATAII Connector (SATAII_1, Red) (PCIE2; Orange) 17 Third SATAII Connector (SATAII_3, Red) 35 PCI Express 2.0 x16 Slot (PCIE1; Green) 18 Fourth SATAII Connector (SATAII_4, Red) 36 Northbridge Controller 19 System Panel Header (PANEL1, Orange) 37 Power Fan Connector (PWR_FAN1) 20 Secondary SATAII Connector (SATAII_2, Red)

ASRock A790GXH/128M Motherboard

I/O PI/O P

I/O P

I/O PI/O P

* 3 LAN RJ-45 Port 11 USB 2.0 Ports (USB23)

** 8 Front Speaker (Lime)

* There are two LED next to the LAN port. Please refer to the table below for the LAN port LED indications.

anelanel

anel

anelanel

1 PS/2 Mouse Port (Green) 9 Microphone (Pink) 2 VGA/D-Sub Port 10 USB 2.0 Ports (US B0 1)

4 Side Speaker (Gray) 12 Optical SPDIF Out Port 5 Rear Speaker (Black) *** 13 HDMI Port 6 Central / Bass (Orange) 14 VGA/DVI-D Port 7 Line In (Light Blue) 15 PS/2 Keyboard Port (Purple)

Activity/Link LED SPEED LED

Status Description Status Description

Off No Activity Off 10Mbps connection Blinking Data Activity Orange 100Mbps connection

LAN Port LED Indications

Green 1Gbps connection

ACT/LINK LED

LAN Port

SPEED LED

** If you use 2-channel speaker, please connect the speaker’s plug into “Front Speaker Jack”.

See the table below for connection details in accordance with the type of speaker you use.

TABLE for Audio Output Conne ction

Audio Output Channels Front Speaker Rear Sp eaker Central / Bass Side Speaker

(No. 8) (No. 5) (No. 6) (No. 4) 2 V -- -- -4VV---6VVV-8VVVV

ASRock A790GXH/128M Motherboard

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To enable Multi-Streaming function, you need to connect a front panel audio cable to the front panel audio header. After restarting your computer, you will find “VIA HD Audio Deck” tool on your system. Please follow below instructions according to the OS you install. For Windows Please click “VIA HD Audio Deck” icon , and click “Speaker”. Then you are allowed to

select “2 Channel”, “4 Channel”, “6 Channel” or “8 Channel”. Click “Power” to save your change. For Windows Please click “VIA HD Audio Deck” icon , and click “Advanced Options” on the left side

on the bottom. In “Advanced Options” screen, select “Independent Headphone”, and click “OK” to save your change.

If you enable Multi-Streaming function, Side Speaker function will be disabled. You can only choose to enable either Multi-Streaming function or Side Speaker function.

*** To support AC3 or DTS audio format with HDMI Audio under VistaTM, please install the HDMI audio driver in XP support CD AAX790H-00.05. The driver is located under the path: ..\Drivers\NB Audio\REALTEK\XP64_XP(R1.68) And note for LPCM support up to stereo 2 channels only.

XP / XP 64-bit OS:

VistaTM / VistaTM 64-bit OS:

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ASRock A790GXH/128M Motherboard

1.1.

IntroductionIntroduction

Introduction

1.1.

IntroductionIntroduction

Thank you for purcha sing ASRock A790GXH/128M motherboard, a relia ble motherboard produced under ASRock’s consistently stringent quality control. It delivers excellent performance with robust design conforming to ASRock’s commitment to quality and endurance. In this manual, cha pter 1 a nd 2 contain introduction of the motherboard a nd 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

1.11.1

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1.1

1.11.1

1 x ASRock A790GXH/128M Motherboard

(ATX Form Factor: 12.0-in x 8.4-in, 30.5 cm x 21.3 cm) 1 x ASRock A790GXH/128M Quick Installation Guide 2 x ASRock A790GXH/128M Support CD 1 x Ultra A TA 66/100/133 IDE Ribbon Cable (80-conductor) 1 x Ribbon Cable for a 3.5-in Floppy Drive 2 x Serial AT A (SAT A) Data Ca bles (Optional) 1 x Serial AT A (SAT A) HDD Power Cable (Optional) 1 x I/O Panel Shield

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ASRock A790GXH/128M Motherboard

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1.21.2

SpecificationsSpecifications

1.2

Specifications

1.21.2

SpecificationsSpecifications

Platform - ATX Form Factor: 12.0-in x 8.4-in, 30.5 cm x 21.3 cm

- Solid Capa citor f or CPU power

CPU - Support for Socket AM2+ / AM2 processors: AMD Phenom

FX / Phenom / Athlon 64 FX / Athlon 64 X2 Dual-Core / Athlon X2 Dual-Core / Athlon 64 / Se mpron processor

- AM3 CPU Rea dy

- Supports CPU up to 140W

- Supports AMD OverDriveTM with ACC feature (Adva nced Clock Calibration)

- AMD LIVE!TM Ready

- Supports AMD’s Cool ‘n’ QuietTM T e chnology

- FSB 2600 MHz (5.2 GT/s)

- Supports Untied Overclocking Technology (see CAUTION 1)

- Supports Hyper-Tran sport 3.0 (HT 3.0) Technology

Chipset - Northbridge: AMD 790GX

- Southbridge: AMD SB750

Memory - Dual Channel DDR2 Memory T echnology (see CAUTION 2)

- 4 x DDR2 DIMM slots

- Support DDR2 1066/800/667/533 non-ECC, un-buffered me mory (see CAUTION 3)

- Max. capacity of system memory: 16GB (see CAUTION 4)

Expansion Slot - 2 x PCI Express 2.0 x16 slots

(green @ x16 mode, orange @ x4 mode)

- 1 x PCI Express 2.0 x1 slot

- 2 x PCI slots

- Supports A TITM CrossFireXTM and Hybrid CrossFireX

Graphics - Integrated AMD Radeon HD 3300 gra phics

- D X10 class iGPU, Pixel Shader 4.0

- Max. shared memory 512MB (see CAUTION 5)

- Integrated 128MB side port memory for iGPU

- Three VGA Output options: D-Sub, D VI-D and HDMI

- Supports HDCP function

- Supports Full HD 1080p Blu-ray (BD) / HD-DVD playback (see CAUTION 6)

Audio - 7.1 CH Windows® VistaTM Premium Level HD Audio

(VIA® VT1708S Audio Codec)

LAN - PCIE x1 Gigabit LAN 10/100/1000 Mb/s

- Realtek RTL81 1 1DL

- Supports Wa ke-On-LAN

ASRock A790GXH/128M Motherboard

Rear Panel I/O I/O Panel

- 1 x PS/2 Mouse Port

- 1 x PS/2 Keyboard Port

- 1 x V GA/D-Sub Port

- 1 x V GA/DVI-D Port

- 1 x HDMI Port

- 1 x Optical SPDIF Out Port

- 4 x Ready-to-Use USB 2.0 Ports

- 1 x RJ-45 LAN Port with LED (ACT/LINK LED a nd SPEED LED)

- HD Audio Jack: Side Spea ker/Rear Spea ker/Central/Bass/ Line in/Front Speaker/Microphone (see CAUTION 7)

Connector - 6 x Serial A TAII 3.0Gb/s connectors, support RAID (RAID 0,

RAID 1, RAID 5, RAID 10 and JBOD), NCQ, AHCI a nd “Hot Plug” functions (see CAUTION 8)

- 1 x ATA133 IDE conne ctor (supports 2 x IDE devices)

- 1 x Floppy connector

- 1 x IR header

- 1 x COM port header

- 1 x HDMI_SPDIF header

- CPU/Chassis/NB/Power F AN connector

- 24 pin A TX power conne ctor

- 8 pin 12V power connector

- CD in header

- Front panel audio connector

- 3 x USB 2.0 headers (support 6 USB 2.0 ports) (see CAUTION 9)

BIOS Feature - 8Mb AMI BIOS

- AMI Legal BIOS

- Supports “Plug and Play”

- ACPI 1.1 Compliance Wa ke Up Events

- Supports jumperfree

- SMBIOS 2.3.1 Support

- CPU, DRAM, NB Voltage Multi-adjustment

- Supports Smart BIOS

Support CD - Drivers, Utilities, AntiVirus Software (Trial Version), AMD

OverDriveTM Utility, AMD Live! Explorer , AMD Fusion

Unique Feature - ASRock OC Tuner (see CAUTION 10)

- Intelligent Energy Saver (see CAUTION 11)

- Instant Boot

- Hybrid Booster:

- CPU Frequency Stepless Control (see CAUTION 12)

- ASRock U-COP (see CAUTION 13)

ASRock A790GXH/128M Motherboard

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- Boot Failure Guard (B.F.G.)

- ASRock AM2 Boost: ASRock Patented Technology to boost

memory performance up to 12.5% (see CAUTION 14) Hardware - CPU T emperature Sensing Monitor - Chassis Temperature Sensing

- CPU/Chassis/NB/Power Fa n Ta chometer

- CPU Quiet Fan

- Voltage Monitoring: +12V, +5V, +3.3V, Vcore

OS - Microsoft® Windows® XP / XP Media Center / XP 64-bit /

Vista

/ VistaTM 64-bit compliant

Certifications - FCC, CE, Microsoft® WHQL Certificated

* 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 third-party 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. This motherboard supports Untied Overclocking Technology. Please read “Untied Overclocking Technology” on page 33 for details.

2. 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 14 for proper installation.

3. Whether 1066MHz memory speed is supported depends on the AM2+ CPU you adopt. If you want to adopt DDR2 1066 memory module on this motherboard, please refer to the memory support list on our website for the compatible memory modules. ASRock website http://www.asrock.com

4. 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® Vista 64-bit with 64-bit CPU, there is no such limitation.

5. The maximum shared memory size is defined by the chipset vendor and is subject to change. Please check AMD website for the latest information.

6. 1080p Blu-ray (BD) / HD-DVD playback support on this motherboard requires the proper hardware configuration. Please refer to page 10 and 11 for the minimum hardware requirement and the passed 1080p Blu-ray (BD) / HD-DVD films in our lab test.

ASRock A790GXH/128M Motherboard

7. For microphone input, this motherboard supports both stereo and mono modes. For audio output, this motherboard supports 2-channel, 4-channel, 6-channel, and 8-channel modes. Please check the table on page 3 for proper connection.

8. Before installing SAT AII hard disk to SATAII conne ctor, please rea d the “SATAII Hard Disk Setup Guide” on page 36 of “User Manual” in the support CD to adjust your SATAII hard disk drive to SATAII mode. You can also connect SATA hard disk to SATAII connector directly.

9. Power Management for USB 2.0 works fine under Microsoft® Windows VistaTM 64-bit / VistaTM / XP 64-bit / XP SP1 or SP2.

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. The voltage regulator can reduce the number of output phases to improve efficiency when the CPU cores are idle. In other words, it is able to provide exceptional power saving and improve power efficiency without sacrificing computing performance. To use Intelligent Energy Saver function, please enable Cool ‘n’ Quiet option in the BIOS setup in advance. 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.

14. This motherboard supports ASRock AM2 Boost overclocking technology. If you enable this function in the BIOS setup, the memory performance will improve up to 12.5%, but the effect still depends on the AM2 CPU you adopt. Enabling this function will overclock the chipset/CPU reference clock. However, we can not guarantee the system stability for all CPU/DRAM configurations. If your system is unstable after AM2 Boost function is enabled, it may not be applicative to your system. You may choose to disable this function for keeping the stability of your system.

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ASRock A790GXH/128M Motherboard

1.31.3

Minimum Hardware Requirement for 1080p Blu-rayMinimum Hardware Requirement for 1080p Blu-ray

1.3

Minimum Hardware Requirement for 1080p Blu-ray

1.31.3

Minimum Hardware Requirement for 1080p Blu-rayMinimum Hardware Requirement for 1080p Blu-ray (BD) / HD(BD) / HD

(BD) / HD

(BD) / HD(BD) / HD

1080p Blu-ray (BD) / HD-DVD playba ck support on this motherboard requires the proper hardware configuration. Plea se refer to below table for the minimum hardware requirement.

CPU AMD Sempron Dual Core 2100 VGA Onboard VGA with DVI-D port Memory Dual Channel DDR2 533, 1GB x 2 Suggested OS Windows® VistaTM or Windows® VistaTM 64

* If you need to use CyberLink PowerDVD Ultra version 7.3, we suggest to disable Hardware Acceleration function for better playback performance and compatibility. After executing CyberLink PowerDVD Ultra program, please follow below steps to disable Hardware Acceleration function. A. Right-click the main page of CyberLink PowerDVD Ultra program. B. Click “Configuration”. C. Select “Video”. D. Click “Enable hardware acceleration (ATI Avivo)” to remove the “V” mark in this item. E. Click “OK” to save the change. * Currently, 1080p Blu-ray (BD) / HD-DVD playback is only supported under Windows VistaTM / VistaTM 64-bit OS. If you install Windows® XP / XP 64-bit OS, the function of 1080p Blu-ray (BD) / HD-DVD playback is not available, please visit our website for AMD 790GX VGA driver update in the future. ASRock website http://www.asrock.com

-D-D

VD Playback SupporVD Playback Suppor

-D

VD Playback Suppor

-D-D

VD Playback SupporVD Playback Suppor

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1.41.4

1.4

1.41.4

assed 1080p Blu-ray (BD) / HDassed 1080p Blu-ray (BD) / HD

assed 1080p Blu-ray (BD) / HD

assed 1080p Blu-ray (BD) / HDassed 1080p Blu-ray (BD) / HD

estest

est

estest

DVD Film Name Format Producer Type Blu-ray SWORDFISH VC-1 WB DVD UNDERWORLD EVOLUTION MPEG-2 SONY

THE LAST STAND MPEG-4-AVC FOX CASINO ROYALE MPEG-4-AVC SONY THE LEAGUE O F MPEG-4-AVC FOX

EXTRAORDINARY GENTLEMEN HD- KING KONG VC-1 UNIVERSAL DVD NEW ORLEANS CONCERT MPEG-2 WEA

THE INTERPRETER MPEG-4-AVC UNIVERSAL

* MPEG-4-AVC mentioned above refers to the same format of H.264. * Above passed films are tested under below configuration. Items Configurations CPU AMD Sempron Dual Core 2100 V GA Onboard VGA with DVI-D port Memory Dual Channel DDR2 533, 1GB x 2 OS Windows® VistaTM or Windows® VistaTM 64 Playback Software CyberLink PowerDVD Ultra (Version 7.3 or above) DVD Player Pioneer BDR-101A / LG GBW-H10N (BD)

HP HD100 (HD-DVD)

-D-D

-D

-D-D

VD FVD F

VD F

VD FVD F

ilms in Our Lilms in Our L

ilms in Our L

ilms in Our Lilms in Our L

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ASRock A790GXH/128M Motherboard

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2.2.

InstallationInstallation

Installation

2.2.

InstallationInstallation

This is an ATX form factor (12.0-in x 8.4-in, 30.5 cm x 21.3 cm) motherboard. Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it.

Pre-installation PrecautionsPre-installation Precautions

Pre-installation Precautions

Pre-installation PrecautionsPre-installation Precautions

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

Before you install or remove any component, ensure that the power 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.

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

2. To avoid damaging the motherboard components due to static electricity, NEVER place your motherboard directly on the carpet or the like. Also remember to use a grounded wrist strap or touch a safety grounded object before you handle components.

3. Hold components by the edges and do not touch the ICs.

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

5. When placing screws into the screw holes to secure the motherboard to the chassis, please do not over-tighten the screws! Doing so may damage the motherboard.

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2.12.1

CPU InstallationCPU Installation

2.1

CPU Installation

2.12.1

CPU InstallationCPU Installation

Step 1. Unlock the socket by lifting the lever up to a 90

angle.

Step 2. Position the CPU directly above the socket such that the CPU corner with

the golden triangle matches the socket corner with a small triangle.

Step 3. Carefully insert the CPU into the socket until it fits in place.

The CPU fits only in one correct orientation. DO NOT force the CPU into the socket to avoid bending of the pins.

Step 4. When the CPU is in place, press it firmly on the socket while you push

down the socket lever to secure the CPU. The lever clicks on the side tab to indicate that it is locked.

Lever 90° Up

CPU Golden Triangle

Socker Corner Small Triangle

STEP 1: Lift Up The Socket Lever

2.22.2

Installation of CPU Fan and HeatsinkInstallation of CPU Fan and Heatsink

2.2

Installation of CPU Fan and Heatsink

2.22.2

Installation of CPU Fan and HeatsinkInstallation of CPU Fan and Heatsink

STEP 2 / STEP 3: Match The CPU Golden Triangle To The Socket Corner Small Triangle

STEP 4: Push Down And Lock The Socket Lever

After you install the CPU into this motherboard, it is necessary to install a larger heatsink and cooling fan to dissipate heat. You also need to spray thermal grease between the CPU and the heatsink to improve heat dissipation. Make sure that the CPU and the heatsink are securely fastened and in good contact with each other. Then connect the CPU fan to the CPU FAN connector (CPU_FAN1, see Page 2, No. 5). For proper installation, please kindly refer to the instruction manuals of the CPU fan and the heatsink.

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2.3 Installation of Memor2.3 Installation of Memor

2.3 Installation of Memor

2.3 Installation of Memor2.3 Installation of Memor

This motherboard provides four 240-pin DDR2 (Double Data Rate 2) DIMM slots, and supports Dual Channel Memory Technology. For dual channel configuration, you always need to install identical (the same brand, speed, size and chip-type) DDR2 DIMM pair in the slots of the same color. In other words, you have to install identical DDR2 DIMM pair in Dual Cha nnel A (DD RII_1 and DDRII_2; Yellow slots; see p.2 No.6) or identical DDR2 DIMM pair in Dual Channel B (DDRII_3 and DDRII_4; Orange slots; see p.2 No.7), so that Dual Channel Memory Technology can be a ctivated. This motherboard also allows you to install f our DD R2 DIMMs f or dual channel configuration, and please install identical DDR2 DIMMs in all four slots. Y ou may refer to the Dual Channel Memory Configuration Ta ble below .

Dual Channel Memory Configurations

DDRII_1 DDRII_2 DDRII_3 DDRII_4

(Y ellow Slot) (Yellow Slot) (Orange Slot) (Orange Slot) (1) Populated Populated - (2) - - Populated Populated (3)* Populated Populated Populated Populated

y Modules (DIMM)y Modules (DIMM)

y Modules (DIMM)

y Modules (DIMM)y Modules (DIMM)

* For the configuration (3), please install identical DD R2 DIMM s in all four slots.

1. If you want to install two memory modules, for optimal compatibility and reliability, it is recommended to install them in the slots of the same color. In other words, install them either in the set of yellow slots (DDRII_1 and DDRII_2), or in the set of orange slots (DDRII_3 and DDRII_4).

2. If only one memory module or three memory modules are installed in the DDR2 DIMM slots on this motherboard, it is unable to activate the Dual Channel Memory Technology.

3. If a pair of memory modules is NOT installed in the same Dual Channel, for example, installing a pair of memory modules in DDRII_1 and DDRII_3, it is unable to activate the Dual Channel Memory Technology .

4. It is not allowed to install a DDR memory module into DDR2 slot; otherwise, this motherboard and DIMM may be damaged.

5. If you adopt DDR2 1066 memory modules on this motherboard, it is recommended to install them on DDRII_3 and DDRII_4 slots.

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Installing a DIMMInstalling a DIMM

Installing a DIMM

Installing a DIMMInstalling a DIMM

Please make sure to disconnect power supply before adding or removing DIMMs or the system components.

Step 1. Unlock a DIMM slot by pressing the retaining clips outward. Step 2. Align a DIMM on the slot such that the notch on the DIMM matches the brea k

on the slot.

The DIMM only fits in one correct orientation. It will cause permanent damage to the motherboard and the DIMM if you force the DIMM into the slot at incorrect orientation.

Step 3. Firmly insert the DIMM into the slot until the retaining clips at both ends fully

snap back in place and the DIMM is properly seated.

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2.4 Expansion Slots (PCI and PCI Express Slots)2.4 Expansion Slots (PCI and PCI Express Slots)

2.4 Expansion Slots (PCI and PCI Express Slots)

2.4 Expansion Slots (PCI and PCI Express Slots)2.4 Expansion Slots (PCI and PCI Express Slots)

There are 2 PCI slots and 3 PCI Express slots on this motherboard. PCI Slots: PCI slots are used to install expansion cards that have the 32-bit PCI

interface.

PCIE Slots:

PCIE1 (PCIE x16 slot; Green) is used for PCI Expre ss x16 lane width graphics cards, or used to install PCI Expre ss graphics cards to support CrossFireXTM function. PCIE2 (PCIE x16 slot; Orange) is used for PCI Express x1 lane width cards, such as Gigabit LAN card, SAT A2 card, etc., or used to install PCI Express graphics cards to support CrossFireXTM function. PCIE3 (PCIE x1 slot; Green) is used for PCI Expre ss cards with x1 lane width cards, such as Gigabit LAN card a nd SAT A2 card.

1. If you plan to install only one PCI Express VGA card on this motherboard, please install it on PCIE1 slot (Green).

2. For the information of the compatible CrossFireXTM Mode PCI Express VGA cards and CrossFireXTM setup procedures, please refer to “CrossFireX

Installing an expansion cardInstalling an expansion card

Installing an expansion card

Installing an expansion cardInstalling an expansion card

Step 1. Before installing the expansion card, ple ase make sure that the power

supply is switched off or the power cord is unplugged. Plea se re a d the documentation of the expansion card a nd ma ke necessary hardware settings for the card before you start the installation.

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

chassis).

Step 3. Remove the bracket fa cing the slot that you intend to use. Keep the screws

for later use.

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

completely seated on the slot. Step 5. Fasten the card to the chassis with screws. Step 6. Replace the system cover.

Operation Guide” on page 20.

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2.5 Multi Monitor and Surround Display Features2.5 Multi Monitor and Surround Display Features

2.5 Multi Monitor and Surround Display Features

2.5 Multi Monitor and Surround Display Features2.5 Multi Monitor and Surround Display Features

Multi Monitor Feature

This motherboard supports multi monitor feature. With the internal VGA output support (DVI-D, D-Sub and HDMI), you ca n easily enjoy the benefits of multi monitor feature without installing any add-on VGA card to this motherboard. This motherboard also provides independent display controllers for D VI-D, D-Sub and HDMI to support multi VGA output so that D VI-D, D-sub and HDMI ca n drive same or different display contents. T o en able multi monitor fe ature, please follow the below steps:

1. Connect DVI-D monitor cable to VGA/DVI-D port on the I/O panel, connect D-Sub monitor cable to VGA/D-Sub port on the I/O panel, and connect HDMI monitor cable to HDMI port on the I/O panel.

VGA/D-Sub port

VGA/D VI-D port

2. If you have installed onboard V GA driver from our support CD to your system already , you can freely enjoy the benefits of multi monitor function after your system boots. If you haven’t installed onboard VGA driver yet, please install onboard V GA driver from our support CD to your system a nd restart your computer. Then you can start to use multi monitor function on this motherboard.

When you playback HDCP-protected video from Blu-ray (BD) or HD-DVD disc, the content will be displayed only in one of the three monitors instead of all monitors.

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Surround Display Feature

This motherboard supports surround display upgrade. With the internal VGA output support (DVI-D, D-Sub and HDMI) a nd external a dd-on PCI Express V GA cards, you can easily enjoy the benefits of surround display feature. Plea se refer to the following ste ps to set up a surround display environment:

1. Install the ATITM PCI Express VGA cards on PCIE1 and PCIE2 slots. Please refer to page 16 for proper expansion card in stallation procedures f or details.

2. Connect DVI-D monitor cable to VGA/DVI-D port on the I/O panel, connect D-Sub monitor cable to VGA/D-Sub port on the I/O panel, and connect HDMI monitor cable to HDMI port on the I/O panel. Then connect other monitor ca ble s to the corresponding connectors of the add-on PCI Express VGA cards on PCIE1 and PCIE2 slots.

3. Boot your system. Press <F2> to enter BIOS setup. Enter “Share Memory” option to adjust the memory ca pability to [32MB], [64MB], [128MB] [256MB] or [512MB] to enable the function of VGA/D-sub. Please make sure that the value you select is less than the total capability of the system memory. If you do not adjust the BIOS setup, the default value of “Share Memory”, [Auto], will disable V GA/D-Sub function when the a dd-on VGA card is inserted to this motherboard.

4. Install the onboard V GA driver and the add-on PCI Express VGA card driver to your system. If you have installed the drivers already, there is no need to install them again.

5. Set up a multi-monitor display.

For Windows® XP / XP 64-bit OS:

Right click the desktop, choose “Properties”, a nd sele ct the “Settings” ta b so that you can adjust the parameters of the multi-monitor according to the steps below. A. Click the “Identify” button to display a large number on each monitor. B. Right-click the display icon in the Display Properties dialog that you wish to be your primary monitor, and then select “Primary”. When you use multiple monitors with your card, one monitor will always be Primary, and all additional monitors will be de sign ated as Secondary. C. Select the display icon identified by the number 2. D. Click “Extend my Windows desktop onto this monitor”. E. Right-click the display icon and select “Attached”, if necessary. F . Set the “Screen Re solution” a nd “Color Quality” as appropri ate f or the second monitor. Click “Apply” or “OK” to apply these new values. G. Repeat steps C through E for the diaplay icon identified by the number one, two, three, four , five, six and seven.

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For Windows® VistaTM / VistaTM 64-bit OS:

Right click the desktop, choose “Personalize”, a nd sele ct the “Display Settings” tab so that you can adjust the parameters of the multi-monitor according to the steps below. A. Click the number ”2” icon. B. Click the items “This is my main monitor” and “Extend the desktop onto this monitor”. C. Click “OK” to save your change. D. Repeat steps A through C for the display icon identified by the number three, four , five, six and seven.

6. Use Surround Display. Click and drag the display icons to positions re presenting the physical setup of your monitors that you would like to use. The placement of display icons determines how you move items from one monitor to another.

HDCP Function

HDCP function is supported on this motherboard. To use HDCP function with this motherboard, you need to adopt the monitor that supports HDCP function as well. Theref ore, you ca n enjoy the superior display quality with high-definition HDCP encryption contents. Plea se refer to below instruction for more details about HDCP function.

What is HDCP?

HDCP stands f or High-Ba ndwidth Digital Content Protection, a specification developed by Intel® for protecting digital entertainment content that uses the DVI interface. HDCP is a copy protection scheme to eliminate the possibility of intercepting digital data midstream between the video source, or transmitter - such as a computer, DVD player or set-top box - and the digital display, or receiver - such as a monitor, television or projector. In other words, HDCP specification is designed to protect the integrity of content as it is being transmitted.

Products compatible with the HDCP scheme such a s DVD players, satellite and cable HDTV set-top-boxe s, as well as few entertainment PCs requires a secure connection to a complia nt display. Due to the increase in manufacturers employing HDCP in the ir equipment, it is highly recommended that the HDTV or LCD monitor you purchase is compatible.

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TMTM

2.6 CrossFireX2.6 CrossFireX

2.6 CrossFireX

2.6 CrossFireX2.6 CrossFireX

TMTM

Operation Guide Operation Guide

Operation Guide

Operation Guide Operation Guide

This motherboard supports CrossFireXTM feature. CrossFireXTM technology offers the most advantageous mea n s availa ble of combining multiple high perf ormance Graphics Processing Units (GPU) in a single PC. Combining a ra nge of different operating mode s with intelligent software design and a n innovative interconnect mecha nism, CrossFireX enables the highest possible level of performa nce a nd image quality in a ny 3D a pplication. Currently CrossFireXTM feature is supported with Windows® XP with Service Pack 2 a nd VistaTM OS. Plea se check AMD website f or AT ITM CrossFireXTM driver updates.

What graphics cards work with CrossFireXTM?

A complete CrossFireXTM system requires a CrossFireXTM Ready motherboard, a CrossFireXTM Edition graphics card and a compatible standard Radeon (CrossFireX Ready) graphics card from the same series, or two CrossFireXTM Ready cards. This applies to cards from ATITM or any of its partners. Please refer to below table for CrossFireXTM VGA card support list according to the OS you install.

For Windows® XP Vendor Chipset Model Driver

ATI Radeon 4850 Gecube GC-HD485PG3-E3 Catalyst 8.7

Radeon 3870 POWERCOLOR AX3870 512MD4-H Catalyst 8.7 Radeon 3850 Gigabyte GV-RX385256H-B Catalyst 8.7 Radeon 3650 POWERCOLOR AX3650 512MD3-XP Catalyst 8.7 Radeon HD 2600XT Gigabyte GV-RX26T256HP-B Catalyst 8.7 Radeon HD 2600PRO MSI RX2600PRO-T2D256EZ Catalyst 8.7

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2020

For Windows® Vista Vendor Chipset Model Driver

ATI Radeon 4850 Gecube GC-HD485PG3-E3 Catalyst 8.7

Radeon 3870 POWERCOLOR AX3870 512MD4-H Catalyst 8.7 Radeon 3870 POWERCOLOR AX3870X2 1GBD3-H Catalyst 8.7 Radeon 3850 Gigabyte GV-RX385256H-B Catalyst 8.7 Radeon 3650 POWERCOLOR AX3650 512MD3-XP Catalyst 8.7 Radeon HD 2600XT Gigabyte GV-RX26T256HP-B Catalyst 8.7 Radeon HD 2600PRO MSI RX2600PRO-T2D256EZ Catalyst 8.7

ASRock A790GXH/128M Motherboard

1. If a customer incorrectly configures their system they will not see the performance benefits of CrossFireXTM. All three CrossFireXTM components, a CrossFireXTM Ready graphics card, a CrossFireXTM Ready motherboard and a CrossFireXTM Edition co-processor graphics card, must be installed correctly to benefit from the CrossFireXTM multi-GPU platform.

2. If you pair a 12-pipe CrossFireTM Edition card with a 16-pipe card, both cards will operate as 12-pipe cards while in CrossFireXTM mode.

TMTM

Enjoy the benefit of CrossFireXEnjoy the benefit of CrossFireX

Enjoy the benefit of CrossFireX

Enjoy the benefit of CrossFireXEnjoy the benefit of CrossFireX

TMTM

Different CrossFireXTM cards may require different methods to enable CrossFireX feature. For other CrossFireXTM cards that ATITM has released or will release in the future, please refer to ATIXTM graphics card manuals for detailed installation guide.

Step 1. Install one Radeon graphics card to PCIE1 slot. For the proper installation

procedures, plea se refer to section “Expansion Slots”.

Step 2. Install the other Radeon graphics card to PCIE2 slot. For the proper installa-

tion procedures, plea se refer to section “Expansion Slots”.

Step 3. Connect two Radeon graphics cards by installing two CrossFireTM Bridge on

CrossFireTM Bridge Interconnects on the top of Radeon graphics cards. (CrossFireTM Bridge is provided with the graphics card you purchase, not bundled with this motherboard. Please refer to your graphics card vendor for details.)

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CrossFireTM Bridge

Step 4. Connect the D VI monitor cable to the D VI connector on the Ra deon graphics

card on PCIE1 slot. (Y ou may use the D VI to D-Sub ada pter to convert the DVI connector to D-Sub interfa ce, a nd then connect the D-Sub monitor cable to the DVI to D-Sub ada pter .)

Step 5. Power on your computer and boot into OS. Step 6. Remove the A TITM driver if you have any VGA driver in stalled in your system.

The Catalyst Uninstaller is an optional download. We recommend using this utility to uninstall any previously installed Catalyst drivers prior to installation. Please check AMD website for ATITM driver updates.

Step 7. Install the required drivers to your system.

For Windows® XP OS:

A. ATITM recommends Windows® XP Service Pack 2 or higher to be installed (If you have Windows® XP Service Pack 2 or higher installed

in your system, there is no need to download it again):

http://www.microsoft.com/windowsxp/sp2/default.mspx

B. You must have Microsoft .NET Framework in stalled prior to downloading and installing the CAT ALYST Control Center . Please check Microsoft website for details.

For Windows® VistaTM OS:

Install the CA TALYST Control Center. Plea se check AMD website f or details.

Step 8. Restart your computer. Step 9. Install the VGA card drivers to your system, and restart your computer.

Then you will find “A TI Catalyst Control Center” on your Windows® taskbar.

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ASRock A790GXH/128M Motherboard

Step 10. Double-click “ATI Catalyst Control Center”. Click “View”, and select

“Advanced View”. Click “CrossFireTM”, and then set the option “Enable CrossFireTM” to “Y e s”.

View

CrossFire

Although you have selected the option “Enable CrossFireTM”, CrossFireX function may not work actually. Your computer will automatically reboot. After restarting your computer, please confirm whether the option “Enable CrossFireTM” in “ATI Catalyst Control Center” is selected or not; if not, please select it again, and then you are able to enjoy the benefit of CrossFireX feature.

Enable CrossFire

Step 11. You can freely enjoy the benefit of CrossFireXTM feature.

* CrossFireXTM appearing here is a registered trademark of ATITM Technologies Inc., and is used only for identification or explanation and to the owners’ benefit, without intent to infringe. * For further information of ATITM CrossFireXTM technology, please check AMD website for updates and details.

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2.72.7

2.7

2.72.7

This motherboard supports ATITM Hybrid CrossFireXTM feature. A TITM Hybrid CrossFireXTM brings multi-GPU performance capabilities by ena bling an AMD 790GX integrated graphics processor and a discrete graphics proce ssor to operate simultaneously with combined output to a single display f or blisteringly-fast frame rates. Currently , ATITM Hybrid CrossFireXTM Technology is only supported with Windows® Vista Hybrid CrossFireXTM may be supported with Windows® XP OS. Plea se visit our website for updated information.

TMTM

TITI

Hybrid CrossF Hybrid CrossF

Hybrid CrossF

TITI

Hybrid CrossF Hybrid CrossF

OS, and is not available with Windows® XP OS. In the future, ATI

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What does an ATITM Hybrid CrossFireXTM system include?

An ATITM Hybrid CrossFireXTM system includes an ATITM RadeonTM 2400 or ATI RadeonTM 3450 series graphics processor and a motherboard based on an AMD 790GX integrated chipset, all operating in a Windows® VistaTM environment. Please refer to below PCI Express graphics card support list for ATITM Hybrid CrossFireXTM. For the future update of more compatible PCI Express graphics cards, please visit our website for further information.

Vendor Chipset Model Driver

ATI RADEON X2400PRO MSI RX2400 PRO-TD256EH Catalyst 8.7

RADEON HD2400XT * POWERCOLOR HD2400 XT Catalyst 8.7

256MB DDR3

RADEON HD3450 POWERCOLOR AX3450 Catalyst 8.7

256MD2-S * Currently, RADEON HD2400XT series graphics cards are only supported with AMD Phenom CPU. Please visit our website for the future driver update and the latest information.

TMTM

Enjoy the benefit of AEnjoy the benefit of A

Enjoy the benefit of A

Enjoy the benefit of AEnjoy the benefit of A

Step 1. Install one compatible PCI Express graphics card to PCIE1 slot (green). For

the proper installation procedures, plea se refer to section “Expansion Slots”.

Step 2. Connect the monitor cable to the correspondent connector on the PCI

Express graphics card on PCIE1 slot.

Step 3. Boot your system. Press <F2> to enter BIOS setup. Enter “Advanced” screen,

and enter “Chipset Settings”. Then set the option “Surround View” to [Enabled].

Step 4. Boot into OS. Please remove the ATITM driver if you have any VGA driver

installed in your system.

Step 5. Install the onboard V GA driver from our support CD to your system for both the

onboard V GA and the discrete graphics card.

Step 6. Restart your computer. Then you will find “ATI Catalyst Control Center” on

your Windows® tas kbar.

TMTM

TITI

Hybrid CrossF Hybrid CrossF

Hybrid CrossF

TITI

Hybrid CrossF Hybrid CrossF

ireXireX

ireX

ireXireX

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Step 7. Double-click “ATI Catalyst Control Center”. Click “View”, click “CrossFireTM”,

and then select the option “Ena ble CrossFireTM”.

View

CrossFire

Step 8. Click “Yes” to continue.

Step 9. Click “OK” to save your change.

Enable CrossFire

Step 10. Reboot your system. Then you can freely enjoy the benefit of Hybrid

CrossFireXTM feature.

* Hybrid CrossFireXTM appearing here is a registered trademark of ATITM Technologies Inc., and is used only for identification or explanation and to the owners’ benefit, without intent to infringe. * For further information of ATITM Hybrid CrossFireXTM technology, please check AMD website for up dates and details.

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2.82.8

Jumpers SetupJumpers Setup

2.8

Jumpers Setup

2.82.8

Jumpers SetupJumpers Setup

The illustration shows how jumpers are setup. When the jumper cap is placed on pins, the jumper is “Short”. If no jumper cap is pla ced on pins, the jumper is “Open”. The illustration shows a 3-pin jumper whose pin1 and pin2 are “Short” when jumper cap is pla ced on these 2 pins.

Jumper Setting

PS2_USB_PW1 Short pin2, pin3 to enable

(see p.2, No. 1) +5VSB (standby) for PS/2 or

USB wake up events.

Note: To select +5VSB, it requires 2 Amp and higher sta ndby current provided by

power supply.

Clear CMOS Jumper

(CLRCMOS1) (see p.2, No. 11)

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 of f the computer and unplug the power cord from the power supply. After waiting for 15 seconds, use a jumper ca p to short pin2 and pin3 on CLRCMOS1 for 5 seconds. However , please do not clear the CMOS right after you update the BIOS. If you need to clear the CMOS when you just finish updating the BIOS, you must boot up the system first, and then shut it down before you do the clearCMOS action.

Clear CMOSDefault

OpenShort

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2.9 Onboard Headers and Connectors2.9 Onboard Headers and Connectors

2.9 Onboard Headers and Connectors

2.9 Onboard Headers and Connectors2.9 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!

•

Floppy Connector

(33-pin FLOPPY1) (see p.2 No. 28)

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.2 No. 9)

connect the blue end

to the motherboard

connect the black end to the IDE devices

80-conductor ATA 66/100/133 cable

Note: Please refer to th e i n struction of your IDE device vendor for the details.

Serial AT AII Connectors These six Serial A T AII (SAT AII)

(SATAII_1: see p.2, No. 16) connectors support SA T AII (SATAII_2: see p.2, No. 20) or SATA hard disk f or internal (SATAII_3: see p.2, No. 17) storage devices. The current (SATAII_4: see p.2, No. 18) SATAII interface allows up to 3.0 (SATAII_5: see p.2, No. 14) Gb/s data transfer rate.

(SATAII_6: see p.2, No. 15)

SATAII_5 SATAII_6

SATAII_1 SATAII_3

SATAII_2 SATAII_4

Serial A TA (SAT A) Either end of the SATA data ca ble Data Cable can be connected to the SAT A /

(Optional) SATAII hard disk or the SA TAII

connector on this motherboard.

Serial ATA (SATA) Please connect the black end of Power Cable SAT A power ca ble to the power

(Optional) connector on each drive. Then

connect to the SATA

HDD power connector

connect to the power supply

connect the white end of SATA power cable to the power connector of the power supply.

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USB 2.0 Headers Besides four default USB 2.0

(9-pin USB10_11) ports on the I/O panel, there are (see p.2 No. 26) three USB 2.0 headers on this

motherboard. Each USB 2.0 header can support two USB

2.0 ports.

(9-pin USB8_9) (see p.2 No. 23)

(9-pin USB6_7) (see p.2 No. 24)

Infrared Module Header This header supports an

(5-pin IR1) optional wireless transmitting (see p.2 No. 27) and receiving infrared module.

Internal Audio Connectors This connector allows you

(4-pin CD1) to receive stereo audio input (CD1: see p.2 No. 31) from sound sources such a s

CD1

a CD-ROM, D VD-ROM, TV tuner card, or MPEG card.

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Front Panel Audio Header This is an interface for the front

(9-pin HD_AUDIO1) panel audio cable that allows (see p.2, No. 30) convenient connection and

control of audio devices.

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 AC’97 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).

ASRock A790GXH/128M Motherboard

D. MIC_RET and OUT_RET are for HD audio panel only. You don’t need to connect them for AC’97 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].

System Panel Hea der This header a ccommodate s

(9-pin PANEL1) several system front panel (see p.2 No. 19) functions.

Chassis Spea ker He ader Please connect the chassis

(4-pin SPEAKER 1) speaker to this hea der. (see p.2 No. 21)

Chassis, NB a nd Power Fa n Connectors Pleas e connect the fa n cables

(3-pin CHA_FAN1) to the fan connectors a nd (see p.2 No. 22) match the black wire to the

ground pin.

(3-pin NB_FAN1) (see p.2 No. 10)

(3-pin PWR_FAN1) (see p.2 No. 37)

CPU Fan Connector Please connect the CPU fa n

(4-pin CPU_FAN1) cable to this connector and (see p.2 No. 5) match the black wire to the

4 3 2 1

ground pin.

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

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ATX Power Conne ctor Please connect an A TX power

(24-pin ATXPWR1) supply to this connector. (see p.2 No. 8)

Though this motherboard provides 24-pin ATX power connector, it can still work if you adopt a traditional 20-pin ATX power supply.

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To use the 20-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 13.

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20-Pin ATX Power Supply Installation

ATX 12V Power Connector Please connect an A TX 12V

(8-pin ATX12V1) power supply to this connector. (see p.2 No. 2)

Though this motherboard provides 8-pin ATX 12V power connector, it can still work if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 5.

4-Pin ATX 12V Power Supply Installation

Serial port Header This COM1 header supports a

(9-pin COM1) serial port module. (see p.2 No.29)

HDMI_SPDIF Header HDMI_SPDIF header, providing

(3-pin HDMI_SPDIF1) SPDIF audio output to HDMI V GA (see p.2 No. 32) card, allows the system to

connect HDMI Digital TV/ projector/LCD devices. Ple a se connect the HDMI_SPDIF connector of HDMI V GA card to this header.

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ASRock A790GXH 128M, A790GXH128M_830 Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual