ASROCK M3A785GXH/128M User manual

11

1

M3A785GXH/128M

User Manual

Version 1.0

Published July 2009

22

2

Copyright Notice:Copyright Notice:

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 regis-

tered 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:

Specifications and information contained in this manual are furnished for informa-

tional 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 warran-

ties 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

33

3

ContentsContents

Contents

1.1.

1.

IntroductionIntroduction

Introduction

......................................................................................................................

...........................................................

5 5

5

1.1 Package Contents ..................................................................... 5

1.2 Specifications ............................................................................ 6

1.3 Two CrossFireX

TM

Graphics Card Support List ........................... 11

1.4 Three CrossFireX

TM

Graphics Card Support List ........................ 11

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

HD-DVD Playback Support ......................................................... 12

1.6 1080p Blu-ray (BD) / HD-DVD Films Which Pass Our Lab Test . 13

1.7 Motherboard Layout ................................................................... 14

1.8 I/O Panel .................................................................................... 15

2.2.

2.

InstallationInstallation

Installation

..........................................................................................................................

.............................................................

16 16

16

Pre-installation Precautions ................................................................ 16

2.1 CPU Installation ......................................................................... 17

2.2 Installation of CPU Fan and Heatsink ......................................... 17

2.3 Installation of Memory Modules (DIMM) .................................... 18

2.4 Expansion Slots (PCI and PCI Express Slots) ........................... 20

2.5 Dual Monitor and Surround Display Features ............................. 22

2.6 CrossFireX

TM

and 3-Way CrossFireX

TM

Operation Guide ............ 25

2.7 Hybrid CrossFireX

TM

Operation Guide ........................................ 32

2.8 Jumpers Setup .......................................................................... 34

2.9 Onboard Headers and Connectors ............................................. 35

2.10 HDMI_SPDIF Header Connection Guide .................................... 41

2.11 SATAII Hard Disk Setup Guide ................................................... 42

2.12 eSATAII Interface Introduction .................................................... 43

2.13 Serial ATA (SATA) / Serial ATAII (SATAII) Hard Disks

Installation ................................................................................. 46

2.14 Hot Plug and Hot Swap Functions for SATA / SATAII HDDs ....... 46

2.15 SATA / SATAII HDD Hot Plug Feature and Operation Guide ....... 47

2.16 Driver Installation Guide ............................................................. 49

2.17 Installing Windows

®

XP / XP 64-bit / Vista

TM

/ Vista

TM

64-bit

With RAID Functions ................................................................. 49

2.17.1 Installing Windows

®

XP / XP 64-bit With RAID

Functions ................................................................ 49

2.17.2 Installing Windows

®

Vista

TM

/ Vista

TM

64-bit With RAID

Functions ...................................................................... 50

2.18 Installing Windows

®

XP / XP 64-bit / Vista

TM

/ Vista

TM

64-bit

Without RAID Functions ............................................................ 51

2.18.1 Installing Windows

®

XP / XP 64-bit Without RAID

Functions ...................................................................... 51

44

4

2.18.2 Installing Windows

®

Vista

TM

/ Vista

TM

64-bit Without RAID

Functions ...................................................................... 52

2.19 Untied Overclocking Technology .............................................. 53

3.3.

3.

BIOS SBIOS S

BIOS S

ETUP UTILITYETUP UTILITY

ETUP UTILITY

......................................................................................................

...................................................

54 54

54

3.1 Introduction ............................................................................... 54

3.1.1 BIOS Menu Bar ............................................................... 54

3.1.2 Navigation Keys ............................................................. 55

3.2 Main Screen .............................................................................. 55

3.3 OC Tweaker Screen ................................................................. 56

3.4 Advanced Screen .................................................................... 63

3.4.1 CPU Configuration .......................................................... 64

3.4.2 Chipset Configuration ..................................................... 65

3.4.3 ACPI Configuration ......................................................... 67

3.4.4 IDE Configuration ............................................................ 68

3.4.5 PCIPnP Configuration ...................................................... 70

3.4.6 Floppy Configuration ...................................................... 71

3.4.7 Super IO Configuration ................................................... 71

3.4.8 USB Configuration .......................................................... 72

3.5 Hardware Health Event Monitoring Screen ............................. 73

3.6 Boot Screen .............................................................................. 74

3.6.1 Boot Settings Configuration ........................................... 74

3.7 Security Screen ........................................................................ 75

3.8 Exit Screen ............................................................................... 76

4.4.

4.

Software SupportSoftware Support

Software Support

......................................................................................................

...................................................

77 77

77

4.1 Install Operating System ........................................................... 77

4.2 Support CD Information ............................................................. 77

4.2.1 Running Support CD ....................................................... 77

4.2.2 Drivers Menu .................................................................. 77

4.2.3 Utilities Menu ................................................................... 77

4.2.4 Contact Information ........................................................ 77

55

5

1.1.

1.

IntroductionIntroduction

Introduction

Thank you for purchasing ASRock M3A785GXH/128M motherboard, a reliable

motherboard produced under ASRock’s consistently stringent quality control. It delivers

excellent performance with robust design conforming to ASRock’s commitment to qual-

ity 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

1.11.1

1.1

PP

P

ackack

ack

age Contentsage Contents

age Contents

1 x ASRock M3A785GXH/128M Motherboard

(ATX Form Factor: 12.0-in x 8.8-in, 30.5 cm x 22.4 cm)

1 x ASRock M3A785GXH/128M Quick Installation Guide

2 x ASRock M3A785GXH/128M Support CD

1 x Ultra ATA 66/100/133 IDE Ribbon Cable (80-conductor)

1 x Ribbon Cable for a 3.5-in Floppy Drive

2 x Serial ATA (SATA) Data Cables (Optional)

1 x I/O Panel Shield

1 x ASRock SLI/XFire Switch Card

66

6

1.21.2

1.2

SpecificationsSpecifications

Specifications

Platform - ATX Form Factor: 12.0-in x 8.8-in, 30.5 cm x 22.4 cm

- All Solid Capacitor design (100% Japan-made high-quality

Conductive Polymer Capacitors)

CPU - Support for Socket AM3 processors: AMD Phenom

TM

II X4 /

X3 / X2 (except 920 / 940) and Athlon II X4 / X3 / X2

processors

- Supports CPU up to 140W

- Supports AMD OverDrive

TM

with ACC feature (Advanced Clock

Calibration)

- AMD LIVE!

TM

Ready

- Supports AMD’s Cool ‘n’ Quiet

TM

Technology

- FSB 2600 MHz (5.2 GT/s)

- Supports Untied Overclocking Technology (see CAUTION 1)

- Supports Hyper-Transport 3.0 (HT 3.0) Technology

Chipset - Northbridge: AMD 785G

- Southbridge: AMD SB710

Memory - Dual Channel DDR3 Memory Technology (see CAUTION 2)

- 4 x DDR3 DIMM slots

- Support DDR3 1600(OC)/1333/1066/800 non-ECC, un-buffered

memory (see CAUTION 3)

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

Expansion Slot - 3 x PCI Express 2.0 x16 slots

(green @ x16 mode, blue @ x8 mode, orange @ x4 mode)

- 1 x PCI Express 2.0 x1 slot

- 2 x PCI slots

- Supports ATI

TM

CrossFireX

TM

, Hybrid CrossFireX

TM

and 3-Way

CrossFireX

TM

(see CAUTION 5)

Graphics - Integrated AMD Radeon HD 4200 graphics

- DX10.1 class iGPU, Shader Model 4.1

- Max. shared memory 512MB (see CAUTION 6)

- Built-in 128MB DDR3 1333(OC)/1200MHz SidePort Memory

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

- Supports HDCP function

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

(see CAUTION 7)

Audio - 7.1 CH Windows

®

Vista

TM

Premium Level HD Audio

(ALC888 Audio Codec)

77

7

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

- Realtek RTL8111DL

- Supports Wake-On-LAN

Rear Panel I/O I/O Panel

- 1 x PS/2 Keyboard Port

- 1 x VGA/D-Sub Port

- 1 x VGA/DVI-D Port

- 1 x HDMI Port

- 1 x Optical SPDIF Out Port

- 1 x IEEE 1394 Port

- 1 x eSATAII Port

- 6 x Ready-to-Use USB 2.0 Ports

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

- HD Audio Jack: Side Speaker/Rear Speaker/Central/Bass/

Line in/Front Speaker/Microphone (see CAUTION 8)

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

RAID 1, RAID 10 and JBOD), NCQ, AHCI and “Hot Plug”

functions (see CAUTION 9)

- 1 x eSATAII 3.0Gb/s connector (shared with 1 SATAII

connector) (see CAUTION 10)

- 1 x ATA133 IDE connector (supports 2 x IDE devices)

- 1 x Floppy connector

- 1 x IR header

- 1 x COM port header

- 1 x IEEE 1394 header

- 1 x HDMI_SPDIF header

- CPU/Chassis/NB/Power FAN connector

- 24 pin ATX power connector

- 8 pin 12V power connector

- SLI/XFIRE power connector

- CD in header

- Front panel audio connector

- 3 x USB 2.0 headers (support 6 USB 2.0 ports)

(see CAUTION 11)

BIOS Feature - 8Mb AMI BIOS

- AMI Legal BIOS

- Supports “Plug and Play”

- ACPI 1.1 Compliance Wake Up Events

- Supports jumperfree

- SMBIOS 2.3.1 Support

- CPU, NB, mGPU, Sideport, VCCM Voltage Multi-adjustment

- Supports Smart BIOS

88

8

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 “Un-

tied Overclocking Technology” on page 53 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 18 for proper

installation.

3. Whether 1600MHz memory speed is supported depends on the AM3

CPU you adopt. If you want to adopt DDR3 1600 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

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

OverDrive

TM

Utility, AMD Live! Explorer, AMD Fusion

Unique Feature - ASRock OC Tuner (see CAUTION 12)

- Intelligent Energy Saver (see CAUTION 13)

- Instant Boot

- ASRock Instant Flash (see CAUTION 14)

- Hybrid Booster:

- CPU Frequency Stepless Control (see CAUTION 15)

- ASRock U-COP (see CAUTION 16)

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

Hardware - CPU Temperature Sensing

Monitor - Chassis Temperature Sensing

- CPU/Chassis/NB/Power Fan Tachometer

- CPU Quiet Fan

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

OS - Microsoft

®

Windows

®

XP / XP Media Center / XP 64-bit /

Vista

TM

/ Vista

TM

64-bit compliant

Certifications - FCC, CE, Microsoft

®

WHQL Certificated

- EuP Ready (EuP ready power supply is required)

(see CAUTION 17)

* For detailed product information, please visit our website: http://www.asrock.com

99

9

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

®

Vista

TM

. For Windows

®

XP 64-bit and Windows

®

Vista

TM

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

5. If you want to use CrossFireX

TM

or 3-Way CrossFireX

TM

function, please

follow the instructions on page 25 and 26 to reverse the direction of ASRock

SLI/XFire Switch Card in advance.

6. The maximum shared memory size is defined by the chipset vendor

and is subject to change. Please check AMD website for the latest

information.

7. 1080p Blu-ray (BD) / HD-DVD playback support on this motherboard re-

quires the proper hardware configuration. Please refer to page 12 and 13

for the minimum hardware requirement and the passed 1080p Blu-ray

(BD) / HD-DVD films in our lab test.

8. 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 15 for proper connection.

9. Before installing SATAII hard disk to SATAII connector, please read the “SATAII

Hard Disk Setup Guide” on page 42 to adjust your SATAII hard disk drive to

SATAII mode. You can also connect SATA hard disk to SATAII connector

directly.

10. This motherboard supports eSATAII interface, the external SATAII

specification. Please read “eSATAII Interface Introduction” on page 43

for details about eSATAII and eSATAII installation procedures.

11. Power Management for USB 2.0 works fine under Microsoft

®

Windows

®

Vista

TM

64-bit / Vista

TM

/ XP 64-bit / XP SP1 or SP2.

12. 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

13. 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

1010

10

14. ASRock Instant Flash is a BIOS flash utility embedded in Flash ROM.

This convenient BIOS update tool allows you to update system BIOS

without entering operating systems first like MS-DOS or Windows

®

. With

this utility, you can press <F6> key during the POST or press <F2> key to

BIOS setup menu to access ASRock Instant Flash. Just launch this tool

and save the new BIOS file to your USB flash drive, floppy disk or hard

drive, then you can update your BIOS only in a few clicks without prepar-

ing an additional floppy diskette or other complicated flash utility. Please

be noted that the USB flash drive or hard drive must use FAT32/16/12 file

system.

15. 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.

16. 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.

17. EuP, stands for Energy Using Product, was a provision regulated by

European Union to define the power consumption for the completed system.

According to EuP, the total AC power of the completed system shall be

under 1.00W in off mode condition. To meet EuP standard, an EuP ready

motherboard and an EuP ready power supply are required. According to

Intel’s suggestion, the EuP ready power supply must meet the standard of

5v standby power efficiency is higher than 50% under 100 mA current

consumption. For EuP ready power supply selection, we recommend you

checking with the power supply manufacturer for more details.

1111

11

1.31.3

1.3

TT

T

wo CrossFwo CrossF

wo CrossF

ireXireX

ireX

TMTM

TM

Graphics Card Suppor Graphics Card Suppor

Graphics Card Suppor

t Listt List

t List

(for Windows

®

XP / XP 64-bit / Vista

TM

/ Vista

TM

64-bit)

Chipset Model Name Chipset Name Driver

Vendor

ATI

* The PCI Express VGA card with * mark is supported under Windows

®

Vista

TM

/

Vista

TM

64-bit only.

* For the latest updates of the supported PCI Express VGA card list for

CrossFireX

TM

Mode, please visit our website for details.

ASRock website:

http://www.asrock.com/support/index.htm

MSI RX2600PRO-T2D256EZ Radeon HD 2600PRO Catalyst 8.9

Gigabyte GV-RX26T256HP-B Radeon HD 2600XT Catalyst 8.9

Powercolor AX3650 512MMD3-XP RADEON 3650 Catalyst 8.9

Gigabyte GV-RX385256H-B RADEON 3850 Catalyst 8.9

Powercolor AX3870 512MD4-H RADEON 3870 Catalyst 8.9

Powercolor AX3870X2 1GBD3-H * RADEON 3870 Catalyst 8.9

Gecube GC-HD485PG3-E3 RADEON 4850 Catalyst 8.9

Powercolor AX4870 512MD5-H RADEON 4870 Catalyst 8.9

1.41.4

1.4

Three CrossFireXThree CrossFireX

Three CrossFireX

TMTM

TM

Graphics Card Support List Graphics Card Support List

Graphics Card Support List

(for Windows

®

Vista

TM

/ Vista

TM

64-bit)

Chipset Model Name Chipset Name Driver

Vendor

ATI

* For the latest updates of the supported PCI Express VGA card list for 3-Way

CrossFireX

TM

Mode, please visit our website for details.

ASRock website:

http://www.asrock.com/support/index.htm

Gecube GC-HD485PG3-E3 RADEON 4850 Catalyst 8.12

+ Hotfix

Powercolor AX4870 512MD5-H RADEON 4870 Catalyst 8.12

+ Hotfix

1212

12

1.51.5

1.5

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

Minimum Hardware Requirement for 1080p Blu-ray

(BD) / HD(BD) / HD

(BD) / HD

-D-D

-D

VD Playback SupporVD Playback Suppor

VD Playback Suppor

tt

t

1080p Blu-ray (BD) / HD-DVD playback support on this motherboard

requires the proper hardware configuration. Please refer to below table

for the minimum hardware requirement.

CPU AM3 all series CPU

VGA Onboard VGA with DVI-D port

Memory Single Channel DDR3 1066, 1GB x 1

Suggested OS Windows

®

Vista

TM

or Windows

®

Vista

TM

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

®

Vista

TM

/ Vista

TM

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 785G VGA driver update in the future.

ASRock website

http://www.asrock.com

1313

13

1.61.6

1.6

PP

P

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

assed 1080p Blu-ray (BD) / HD

-D-D

-D

VD FVD F

VD F

ilms in Our Lilms in Our L

ilms in Our L

abab

ab

TT

T

estest

est

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 OF 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 AM3 all series CPU

VGA Onboard VGA with DVI-D port

Memory Single Channel DDR3 1066, 1GB x 1

OS Windows

®

Vista

TM

or Windows

®

Vista

TM

64

Playback Software CyberLink PowerDVD Ultra (Version 7.3 or above)

DVD Player Pioneer BDR-101A / LG GBW-H10N (BD)

HP HD100 (HD-DVD)

1414

14

1.7 Motherboard Layout1.7 Motherboard Layout

1.7 Motherboard Layout

IDE1

SOCKET AM3

FSB800

DDR3_A1 (64 bit, 240-pin module)

DDR3_B1 (64 bit, 240-pin module)

FSB800

DDR3_A2 (64 bit, 240-pin module)

DDR3_B2 (64 bit, 240-pin module)

AMD

SB710

Chipset

PS2_USB_PW1

1

ATX12V1

CPU_FAN1

8Mb

BIOS

CMOS

BATTERY

CLRCMOS1

COM1

LAN

PHY

1

AUDIO

CODEC

Super

I/O

IR1

1

CD1

HD_AUDIO1

1

PCIE1

1

HDMI_SPDIF1

FLOPPY1

HDLED RESET

PLED PWRBTN

1

PANEL1

CHA_FAN1

SPEAKER1

1

USB6_7

1

SATAII_6

22.4cm (8.8-in)

30.5cm (12.0-in)

6

7

1

2

4

3

5

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

2728

29

3031

3233

34

35

M3A785GXH/128M

SATAII_5

Top:

SIDE SPK

Center:

REAR SPK

Bottom:

CTR BASS

Top:

LINE IN

Center:

FRONT

Bottom:

MIC IN

PS2

Keyboard

USB 2.0

T: USB0

B: USB1

Top :

RJ-45

Dual Channel

PCI Express 2.0

RoHS

VGA1

DVI_CON1

HDMI1

SPDIF_O1

PCI1

NB_FAN1

PWR_FAN1

Sideport memory 128MB

Hybrid CrossFire

36

37

AMD

785G

Chipset

USB 2.0

T: U SB 4

B: USB5

USB2

USB3

IEEE 1394

eSATAII

PCIE2

PCIE3

PCIE4

PCI2

VIA

VT6803S

USB8_9

1

USB10_11

1

SLI/XFIRE_PWR1

FRONT_1394

1

SATAII_1_2

SATAII_3_4

HT3.0

FSB2.6GHz

140W CPU

AM3

CrossFireX

1394a

eSATAII_TOP

DDR3 1600

1

38

39

40

41

42

Phenom II

EuP Ready

1 ATX 12V Power Connector (ATX12V1) 23 Sixth SATAII Connector

2 PS2_USB_PW1 Jumper (SATAII_6, Orange)

3 CPU Fan Connector (CPU_FAN1) 24 Infrared Module Header (IR1)

4 SLI / XFIRE Power Connector 25 Clear CMOS Jumper (CLRCMOS1)

5 CPU Heatsink Retention Module 26 Front Panel IEEE 1394 Header

6 AM3 941-Pin CPU Socket (FRONT_1394)

7 2 x 240-pin DDR3 DIMM Slots 27 USB 2.0 Header (USB10_11, Blue)

(Dual Channel A: DDR3_A1, DDR3_B1; Blue) 28 USB 2.0 Header (USB6_7, Blue)

8 2 x 240-pin DDR3 DIMM Slots 29 USB 2.0 Header (USB8_9, Blue)

(Dual Channel B: DDR3_A2, DDR3_B2; White) 30 Chassis Fan Connector (CHA_FAN1)

9 ATX Power Connector (ATXPWR1) 31 Floppy Connector (FLOPPY1)

10 North Bridge Fan Connector (NB_FAN1) 32 Serial Port Connector (COM1)

11 Northbridge Controller 33 Front Panel Audio Header

12 Primary IDE Connector (IDE1, Blue) (HD_AUDIO1, Lime)

13 SLI/XFire Switch Card Retention Slot 34 Internal Audio Connector: CD1 (Black)

14 Southbridge Controller 35 HDMI_SPDIF Header

15 SPI Flash Memory (8Mb) (HDMI_SPDIF1, Yellow)

16 System Panel Header (PANEL1, Orange) 36 PCI Express 2.0 x16 Slot

17 Primary SATAII Connector (SATAII_1, Red) (PCIE4; Orange)

18 Secondary SATAII Connector (SATAII_2, Red) 37 PCI Slots (PCI1- 2)

19 Fourth SATAII Connector (SATAII_4, Red) 38 PCI Express 2.0 x16 Slot (PCIE3; Blue)

20 Third SATAII Connector (SATAII_3, Red) 39 PCI Express 2.0 x16 Slot (PCIE2; Green)

21 Chassis Speaker Header 40 PCI Express 2.0 x1 Slot (PCIE1; Green)

(SPEAKER 1, Purple) 41 Power Fan Connector (PWR_FAN1)

22 Fifth SATAII Connector (SATAII_5, Red) 42 eSATAII Connector (eSATAII_TOP)

1515

15

1.81.8

1.8

I/O PI/O P

I/O P

anelanel

anel

** 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 Connection

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

(No. 9) (No. 6) (No. 7) (No. 5)

2 V -- -- --

4VV----

6VVV--

8VVVV

LAN Port

ACT/LINK

LED

SPEED

LED

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

indications.

LAN Port LED Indications

Activity/Link LED SPEED LED

Status Description Status Description

Off No Activity Off 10Mbps connection

Blinking Data Activity Orange 100Mbps connection

Green 1Gbps connection

1

2

4

3

5

6

7

8

9

10

11

12

13

14

15

16

17

1 PS/2 Keyboard Port (Purple) 10 Microphone (Pink)

2 VGA/D-Sub Port 11 USB 2.0 Ports (USB01)

3 USB 2.0 Ports (USB23) 12 IEEE 1394 Port

* 4 LAN RJ-45 Port 13 eSATAII Port

5 Side Speaker (Gray) 14 Optical SPDIF Out Port

6 Rear Speaker (Black) *** 15 HDMI Port

7 Central / Bass (Orange) 16 VGA/DVI-D Port

8 Line In (Light Blue) 17 USB 2.0 Ports (USB45)

** 9 Front Speaker (Lime)

*** To support AC3 or DTS audio format with HDMI Audio under Vista

TM

, please install the

HDMI audio driver in XP support CD AAX785H-10.

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.

1616

16

2.2.

2.

InstallationInstallation

Installation

This is an ATX form factor (12.0-in x 8.8-in, 30.5 cm x 22.4 cm) motherboard.

Before you install the motherboard, study the configuration of your chassis to en-

sure that the motherboard fits into it.

Pre-installation PrecautionsPre-installation Precautions

Pre-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 anti-

static 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.

1717

17

2.12.1

2.1

CPU InstallationCPU Installation

CPU Installation

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

o

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.

2.22.2

2.2

Installation of CPU Fan and HeatsinkInstallation of CPU Fan and Heatsink

Installation of CPU Fan and Heatsink

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 fas-

tened and in good contact with each other. Then connect the CPU fan to

the CPU FAN connector (CPU_FAN1, see Page 14, No. 3). For proper

installation, please kindly refer to the instruction manuals of the CPU fan

and the heatsink.

STEP 1:

Lift Up The Socket Lever

STEP 2 / STEP 3:

Match The CPU Golden Triangle

To The Socket Corner Small

Triangle

STEP 4:

Push Down And Lock

The Socket Lever

Lever 90° Up

CPU Golden Triangle

Socker Corner Small Triangle

1818

18

2.3 Installation of Memory Modules (DIMM)2.3 Installation of Memory Modules (DIMM)

2.3 Installation of Memory Modules (DIMM)

This motherboard provides four 240-pin DDR3 (Double Data Rate 3) 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)

DDR3 DIMM pair in the slots of the same color. In other words, you have to install

identical DDR3 DIMM pair in Dual Channel A (DDR3_A1 and DDR3_B1; Blue

slots; see p.14 No.7) or identical DDR3 DIMM pair in Dual Channel B (DDR3_A2

and DDR3_B2; White slots; see p.14 No.8), so that Dual Channel Memory Technol-

ogy can be activated. This motherboard also allows you to install four DDR3 DIMMs

for dual channel configuration, and please install identical DDR3 DIMMs in all four

slots. You may refer to the Dual Channel Memory Configuration Table below.

Dual Channel Memory Configurations

DDR3_A1 DDR3_B1 DDR3_A2 DDR3_B2

(Blue Slot) (Blue Slot) (White Slot) (White Slot)

(1) Populated Populated - -

(2) - - Populated Populated

(3)* Populated Populated Populated Populated

* For the configuration (3), please install identical DDR3 DIMMs 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 blue

slots (DDR3_A1 and DDR3_B1), or in the set of white slots

(DDR3_A2 and DDR3_B2).

2. If only one memory module or three memory modules are installed

in the DDR3 DIMM slots on this motherboard, it is unable to acti-

vate 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

DDR3_A1 and DDR3_A2, it is unable to activate the Dual Channel

Memory Technology .

4. It is not allowed to install a DDR or DDR2 memory module into

DDR3 slot; otherwise, this motherboard and DIMM may be

damaged.

5. If you adopt DDR3 1600 memory modules on this motherboard, it

is recommended to install them on DDR3_A2 and DDR3_B2 slots.

1919

19

notch

break

notch

break

Installing a DIMMInstalling a DIMM

Installing 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 break

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.

2020

20

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 4 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 x1 slot; Green) is used for PCI Express cards with x1 lane

width cards, such as Gigabit LAN card and SATA2 card.

PCIE2 (PCIE x16 slot; Green) is used for PCI Express x16 lane width

graphics cards, or used to install PCI Express graphics cards to support

CrossFireX

TM

function.

PCIE3 (PCIE x16 slot; Blue) is used to install PCI Express graphics

cards to support CrossFireX

TM

function.

PCIE4 (PCIE x16 slot; Orange) is used for PCI Express x1 lane width

cards, such as Gigabit LAN card, SATA2 card, etc., or used to install PCI

Express graphics cards to support 3-Way CrossFireX

TM

function.

1. If you plan to install only one PCI Express VGA card on this

motherboard, please install it on PCIE2 slot (Green). In this mode,

you do not need to adjust the default setting of ASRock SLI/XFire

Switch Card, and please do not remove or lose ASRock SLI/XFire

Switch Card when it is still in working condition.

PCIE2 slot

(x16 or x8 mode)

PCIE3 slot

(x8 mode)

PCIE4 slot

(x4 mode)

PCIE1 slot

(x1 mode)

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ASROCK M3A785GXH/128M User manual

ASROCK M3A785GXH/128M User manual

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