ASROCK A785GXH128M_838 Le manuel du propriétaire

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ASRock A785GXH/128M Motherboard
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Copyright Notice:Copyright Notice:
Copyright Notice:Copyright Notice:
Copyright Notice:
No part of this installation guide may be reproduced, transcribed, transmitted, or trans-
lated in any language, in any form or by any means, except duplication of documen-
tation 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 identifica-
tion 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.
Published August 2009
Copyright©2009 ASRock INC. All rights reserved.
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
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ASRock A785GXH/128M Motherboard
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Motherboard LayoutMotherboard Layout
Motherboard LayoutMotherboard Layout
Motherboard Layout
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)
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ASRock A785GXH/128M Motherboard
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I/O PI/O P
I/O PI/O P
I/O P
anelanel
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. 8) (No. 5) (No. 6) (No. 4)
2 V -- -- --
4VV----
6 VVV--
8 VVVV
1 PS/2 Mouse Port (Green) 9 Microphone (Pink)
2 VGA/D-Sub Port 10 USB 2.0 Ports (USB01)
* 3 LAN RJ-45 Port 11 USB 2.0 Ports (USB23)
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)
** 8 Front Speaker (Lime)
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 Link Off 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
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ASRock A785GXH/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
®
XP / XP 64-bit OS:
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
®
Vista
TM
/ Vista
TM
64-bit OS:
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 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.
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ASRock A785GXH/128M Motherboard
1.1.
1.1.
1.
IntroductionIntroduction
IntroductionIntroduction
Introduction
Thank you for purchasing ASRock A785GXH/128M motherboard, a reliable
motherboard produced under ASRock’s consistently stringent quality control. It de-
livers excellent performance with robust design conforming to ASRock’s commit-
ment 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
1.11.1
1.11.1
1.1
Package ContentsPackage Contents
Package ContentsPackage Contents
Package Contents
1 x ASRock A785GXH/128M Motherboard
(ATX Form Factor: 12.0-in x 8.4-in, 30.5 cm x 21.3 cm)
1 x ASRock A785GXH/128M Quick Installation Guide
2 x ASRock A785GXH/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
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1.21.2
1.21.2
1.2
SpecificationsSpecifications
SpecificationsSpecifications
Specifications
Platform - ATX Form Factor: 12.0-in x 8.4-in, 30.5 cm x 21.3 cm
- Solid Capacitor for CPU power
CPU - Support for Socket AM2+ / AM2 processors: AMD Phenom
TM
FX / Phenom / Athlon 64 FX / Athlon 64 X2 Dual-Core / Athlon
X2 Dual-Core / Athlon 64 / Sempron
processor
- Support for AM3 processors: AMD Phenom
TM
II X4 / X3 / X2
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 DDR2 Memory Technology (see CAUTION 2)
- 4 x DDR2 DIMM slots
- Support DDR2 1066/800/667/533 non-ECC, un-buffered
memory (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 ATI
TM
CrossFireX
TM
and Hybrid CrossFireX
TM
Graphics - Integrated AMD Radeon HD 4200 graphics
- DX10.1 class iGPU, Shader Model 4.1
- Max. shared memory 512MB (see CAUTION 5)
- Integrated 128MB side port memory for iGPU
- 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 6)
Audio - 7.1 CH Windows
®
Vista
TM
Premium Level HD Audio
(VIA
®
VT1708S Audio Codec)
LAN - PCIE x1 Gigabit LAN 10/100/1000 Mb/s
- Realtek RTL8111DL
- Supports Wake-On-LAN
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Rear Panel I/O I/O Panel
- 1 x PS/2 Mouse Port
- 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
- 4 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 7)
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 8)
- 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 HDMI_SPDIF header
- CPU/Chassis/NB/Power FAN connector
- 24 pin ATX power connector
- 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 Wake Up Events
- Supports jumperfree
- SMBIOS 2.3.1 Support
- CPU, VCCM, NB Voltage Multi-adjustment
- Supports Smart BIOS
Support CD - Drivers, Utilities, AntiVirus Software (Trial Version), AMD
OverDrive
TM
Utility, AMD Live! Explorer, AMD Fusion
Unique Feature - ASRock OC Tuner (see CAUTION 10)
- Intelligent Energy Saver (see CAUTION 11)
- Instant Boot
- ASRock Instant Flash (see CAUTION 12)
- ASRock OC DNA (see CAUTION 13)
- Hybrid Booster:
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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 34 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 15 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
®
Vista
TM
. For Windows
®
XP 64-bit and Windows
®
Vista
TM
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.
- CPU Frequency Stepless Control (see CAUTION 14)
- ASRock U-COP (see CAUTION 15)
- Boot Failure Guard (B.F.G.)
- ASRock AM2 Boost: ASRock Patented Technology to boost
memory performance up to 12.5% (see CAUTION 16)
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 / Win7 compliant
Certifications - FCC, CE, WHQL
- EuP Ready (EuP ready power supply is required)
(see CAUTION 17)
* For detailed product information, please visit our website: http://www.asrock.com
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6. 1080p Blu-ray (BD) / HD-DVD playback support on this motherboard requires
the proper hardware configuration. Please refer to page 11 and 12 for the
minimum hardware requirement and the passed 1080p Blu-ray (BD) / HD-DVD
films in our lab test.
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 SATAII hard disk to SATAII connector, please read the “SATAII
Hard Disk Setup Guide” on page 37 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
®
Vista
TM
64-bit / Vista
TM
/ 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. 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.
13. The software name itself – OC DNA literally tells you what it is capable of.
OC DNA, an exclusive utility developed by ASRock, provides a conve-
nient way for the user to record the OC settings and share with others. It
helps you to save your overclocking record under the operating system
and simplifies the complicated recording process of overclocking settings.
With OC DNA, you can save your OC settings as a profile and share with
your friends! Your friends then can load the OC profile to their own system
to get the same OC settings as yours! Please be noticed that the OC
profile can only be shared and worked on the same motherboard.
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14. 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.
15. 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.
16. 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.
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 manu-
facturer for more details.
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ASRock A785GXH/128M Motherboard
1.31.3
1.31.3
1.3
Minimum Hardware Requirement for 1080p Blu-rayMinimum Hardware Requirement for 1080p Blu-ray
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(BD) / HD
(BD) / HD
-D-D
-D-D
-D
VD Playback SupporVD Playback Suppor
VD Playback SupporVD Playback Suppor
VD Playback Suppor
tt
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 AMD Sempron Dual Core 2100
VGA Onboard VGA with DVI-D port
Memory Dual Channel DDR2 533, 1GB x 2
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
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1.41.4
1.41.4
1.4
PP
PP
P
assed 1080p Blu-ray (BD) / HDassed 1080p Blu-ray (BD) / HD
assed 1080p Blu-ray (BD) / HDassed 1080p Blu-ray (BD) / HD
assed 1080p Blu-ray (BD) / HD
-D-D
-D-D
-D
VD FVD F
VD FVD F
VD F
ilms in Our Lilms in Our L
ilms in Our Lilms in Our L
ilms in Our L
abab
abab
ab
TT
TT
T
estest
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 AMD Sempron Dual Core 2100
VGA Onboard VGA with DVI-D port
Memory Dual Channel DDR2 533, 1GB x 2
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)
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ASRock A785GXH/128M Motherboard
2.2.
2.2.
2.
InstallationInstallation
InstallationInstallation
Installation
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 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.
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2.12.1
2.12.1
2.1
CPU InstallationCPU Installation
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
2.22.2
2.2
Installation of CPU Fan and HeatsinkInstallation of CPU Fan and Heatsink
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 2, No. 5). 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
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ASRock A785GXH/128M Motherboard
2.3 Installation of Memor2.3 Installation of Memor
2.3 Installation of Memor2.3 Installation of Memor
2.3 Installation of Memor
y Modules (DIMM)y Modules (DIMM)
y Modules (DIMM)y Modules (DIMM)
y Modules (DIMM)
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 Channel A (DDRII_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 activated. This motherboard also allows you to install four DDR2 DIMMs for
dual channel configuration, and please install identical DDR2 DIMMs in all four
slots. You may refer to the Dual Channel Memory Configuration Table below.
Dual Channel Memory Configurations
DDRII_1 DDRII_2 DDRII_3 DDRII_4
(Yellow Slot) (Yellow Slot) (Orange Slot) (Orange Slot)
(1) Populated Populated - -
(2) - - Populated Populated
(3)* Populated Populated Populated Populated
* For the configuration (3), please install identical DDR2 DIMMs in all four slots.
1. If you want to install two memory modules, for optimal compatibil-
ity 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 in-
stalled 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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ASRock A785GXH/128M Motherboard
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Installing a DIMMInstalling a DIMM
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.
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ASRock A785GXH/128M Motherboard
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 Express x16 lane width
graphics cards, or used to install PCI Express graphics cards to support
CrossFireX
TM
function.
PCIE2 (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 CrossFireX
TM
function.
PCIE3 (PCIE x1 slot; Green) is used for PCI Express cards with x1 lane
width cards, such as Gigabit LAN card and SATA2 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 CrossFireX
TM
Mode PCI
Express VGA cards and CrossFireX
TM
setup procedures, please
refer to “CrossFireX
TM
Operation Guide” on page 21.
Installing an expansion cardInstalling an expansion card
Installing an expansion cardInstalling an expansion card
Installing an expansion card
Step 1. Before installing the expansion card, please make sure that the power
supply is switched off or the power cord is unplugged. Please read the
documentation of the expansion card and make 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 facing 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.
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ASRock A785GXH/128M Motherboard
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VGA/D-Sub port
VGA/DVI-D port
HDMI port
2. If you have installed onboard VGA 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 VGA driver from our support CD to your system and 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.
2.5 Dual Monitor and Surround Display Features2.5 Dual Monitor and Surround Display Features
2.5 Dual Monitor and Surround Display Features2.5 Dual Monitor and Surround Display Features
2.5 Dual Monitor and Surround Display Features
Dual Monitor Feature
This motherboard supports dual monitor feature. With the internal VGA output
support (DVI-D, D-Sub and HDMI), you can easily enjoy the benefits of dual monitor
feature without installing any add-on VGA card to this motherboard. This
motherboard also provides independent display controllers for DVI-D, D-Sub or
HDMI to support dual VGA output so that DVI-D, D-sub or HDMI can drive same or
different display contents.
To enable dual monitor feature, 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, or connect HDMI monitor
cable to HDMI port on the I/O panel.
DVI-D and HDMI monitors cannot display at the same time. You can only
choose the combination for dual monitor output support: DVI-D + D-Sub
or HDMI + D-Sub.
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ASRock A785GXH/128M Motherboard
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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) and external add-on PCI Express VGA
card, you can easily enjoy the benefits of surround display feature.
Please refer to the following steps to set up a surround display environment:
1. Install the ATI
TM
PCI Express VGA cards on PCIE1 and PCIE2 slots. Please refer
to page 17 for proper expansion card installation procedures for 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 cables 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 capability 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
VGA/D-Sub function when the add-on VGA card is inserted to this
motherboard.
4. Install the onboard VGA 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”, and select the “Settings” tab
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 designated 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 Resolution” and “Color Quality” as appropriate for the
second monitor. Click “Apply” or “OK” to apply these new values.
DVI-D and HDMI monitors cannot display at the same time. You can only
choose the combination: DVI-D + D-Sub or HDMI + D-Sub.
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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. Therefore, you can enjoy the superior display
quality with high-definition HDCP encryption contents. Please refer to
below instruction for more details about HDCP function.
What is HDCP?
HDCP stands for High-Bandwidth 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 as DVD players,
satellite and cable HDTV set-top-boxes, as well as few entertain-
ment PCs requires a secure connection to a compliant display. Due
to the increase in manufacturers employing HDCP in their equipment,
it is highly recommended that the HDTV or LCD monitor you purchase
is compatible.
G. Repeat steps C through E for the diaplay icon identified by the number
one, two, three, four, five and six.
For Windows
®
Vista
TM
/ Vista
TM
64-bit OS:
Right click the desktop, choose “Personalize”, and select 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 and six.
6. Use Surround Display. Click and drag the display icons to positions representing
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.
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