939A785GMH User Manual Version 1.0 Published August 2011 Copyright©2011 ASRock INC. All rights reserved.
Copyright Notice: No part of this manual may be reproduced, transcribed, transmitted, or translated in any language, in any form or by any means, except duplication of documentation by the purchaser for backup purpose, without written consent of ASRock Inc. Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners’ benefit, without intent to infringe.
Contents 1 . Introduction ........................................................... 5 1.1 1.2 1.3 1.4 Package Contents ..................................................................... Specifications ........................................................................... Motherboard Layout ................................................................. I/O Panel .................................................................................... 5 6 11 12 2 . Installation ....................
3 . BIOS SSETUP ETUP UTILITY .................................................. 36 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Introduction ................................................................................ 3.1.1 BIOS Menu Bar ............................................................... 3.1.2 Navigation Keys .............................................................. Main Screen .............................................................................. OC Tweaker Screen ......................
1. Introduction Thank you for purchasing ASRock 939A785GMH 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 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.
1.2 Specifications Platform CPU Chipset Memory Expansion Slot Graphics Audio LAN - Micro ATX Form Factor: 9.6-in x 8.6-in, 24.4 cm x 21.8 cm - Solid Capacitor for CPU power - Socket 939 for AMD AthlonTM 64FX / 64X2 / 64 processors - Supports AMD’s Cool ‘n’ QuietTM Technology - FSB 1000 MHz (2.
Rear Panel I/O Connector BIOS Feature Support CD Unique Feature I/O Panel - 1 x PS/2 Keyboard Port - 1 x D-Sub Port - 1 x DVI-D Port - 1 x HDMI Port - 1 x Optical SPDIF Out Port - 4 x Ready-to-Use USB 2.0 Ports - 1 x eSATA2 Port - 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) - HD Audio Jack: Rear Speaker/Central/Bass/Line in/ Front Speaker/Microphone (see CAUTION 5) - 5 x SATA2 3.
Hardware Monitor OS Certifications - Hybrid Booster: - CPU Frequency Stepless Control (see CAUTION 11) - ASRock U-COP (see CAUTION 12) - Boot Failure Guard (B.F.G.) - CPU Temperature Sensing - Chassis Temperature Sensing - CPU/Chassis/Power Fan Tachometer - CPU Quiet Fan - Voltage Monitoring: +12V, +5V, +3.
CAUTION! 1. This motherboard supports Untied Overclocking Technology. Please read 2. “Untied Overclocking Technology” on page 35 for details. This motherboard supports Dual Channel Memory Technology. Before you implement Dual Channel Memory Technology, make sure to read the installation guide of memory modules on page 15 for proper 3. installation. Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 7 / Vista TM / XP.
9. The software name itself – OC DNA literally tells you what it is capable of. OC DNA, an exclusive utility developed by ASRock, provides a convenient 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.
1.3 Motherboard Layout 1 3 2 5 4 6 7 21.8cm (8.6-in) Top: SIDE SPK Center: FRONT Top: LINE IN Bottom: MIC IN Center: REAR SPK Bottom: SPDIF_01 LAN IDE1 939A785GMH 9 AMD 785G Chipset PCIE1 CLRCMOS1 1 32 PCI Express 2.
1.4 I/O PPanel anel 1 3 2 4 6 5 7 8 14 1 2 *3 4 5 6 ** 7 11 12 13 USB 2.0 Ports (USB23) D-Sub Port LAN RJ-45 Port Central / Bass (Orange) Rear Speaker (Black) Line In (Light Blue) Front Speaker (Lime) 8 9 10 11 *** 12 13 14 10 9 Microphone (Pink) Optical SPDIF Out Port USB 2.0 Ports (USB01) eSATA2 Port HDMI Port DVI-D Port PS/2 Keyboard Port (Purple) * There are two LED next to the LAN port. Please refer to the table below for the LAN port LED indications.
2. Installation 939A785GMH is a Micro ATX form factor (9.6-in x 8.6-in, 24.4 cm x 21.8 cm) motherboard. Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it. 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.
2.1 CPU Installation Step 1. Step 2. Step 3. o Unlock the socket by lifting the lever up to a 90 angle. Position the CPU directly above the socket such that the CPU corner with the golden triangle matches the socket corner with a small triangle. 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.
2.3 Installation of Memor y Modules (DIMM) 939A785GMH motherboard provides four 184-pin DDR (Double Data Rate) 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) DDR DIMM pair in the slots of the same color. In other words, you have to install identical DDR DIMM pair in Dual Channel A (DDR1 and DDR2; Blue slots; see p. 11 No.
Installing a DIMM Please make sure to disconnect power supply before adding or removing DIMMs or the system components. Step 1. Step 2. Unlock a DIMM slot by pressing the retaining clips outward. Align a DIMM on the slot such that the notch on the DIMM matches the break on the slot. notch break notch break 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.
2.4 Expansion Slots (PCI and PCI Express Slots) There are 2 PCI slots and 2 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; White) is used for PCI Express cards with x1 lane width cards, such as Gigabit LAN card, SATA2 card, etc. PCIE2 (PCIE x16 slot; Blue) is used for PCI Express cards with x16 lane width graphics cards. Installing an expansion card Step 1. Step 2. Step 3. Step 4.
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.
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 ATITM PCI Express VGA cards on PCIE2 slot. Please refer to page 17 for proper expansion card installation procedures for details. 2.
G. Repeat steps C through E for the diaplay icon identified by the number one, two, three and four. For Windows® 7 / 7 64-bit / VistaTM / VistaTM 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.
2.6 ATI TM Hybrid CrossF ireX TM Operation Guide CrossFireX This motherboard supports ATITM Hybrid CrossFireXTM feature. ATITM Hybrid CrossFireXTM brings multi-GPU performance capabilities by enabling an AMD 785G integrated graphics processor and a discrete graphics processor to operate simultaneously with combined output to a single display for blisteringly-fast frame rates.
Step 7. Double-click “ATI Catalyst Control Center”. Click “View”, click “CrossFireTM”, and then select the option “Enable CrossFireTM”. View Enable CrossFireTM CrossFireTM Step 8. Click “Yes” to continue. Step 9. Click “OK” to save your change. Step 10. Reboot your system. Then you can freely enjoy the benefit of HybridTM CrossFireXTM feature. * Hybrid CrossFireX TM appearing here is a registered trademark of ATI TM Technologies Inc.
2.7 Jumpers 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 placed on pins, the jumper is “Open”. The illustration shows a 3-pin jumper whose pin1 and pin2 are “Short” when jumper cap is placed on these 2 pins. Jumper PS2_USB_PW1 Setting Short pin2, pin3 to enable +5VSB (standby) for PS/2 or +5V +5VSB USB wake up events. Note: To select +5VSB, it requires 2 Amp and higher standby current provided by power supply.
2.8 Onboard Headers and Connectors Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage of the motherboard! • Floppy Connector (33-pin FLOPPY1) FLOPPY1 Pin1 (see p.11 No. 26) 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.11 No.
USB 2.0 Headers USB_PWR P-9 P+9 GND DUMMY (9-pin USB8_9) (see p.11 No. 10) 1 GND P+8 P-8 USB_PWR Besides four default USB 2.0 ports on the I/O panel, there are three USB 2.0 headers on this motherboard. Each USB 2.0 header can support two USB 2.0 ports. USB_PWR P-7 P+7 GND DUMMY (9-pin USB6_7) (see p.11 No. 11) 1 GND P+6 P-6 USB_PWR (9-pin USB4_5) (see p.11 No. 12) USB_PWR P-5 P+5 GND DUMMY 1 GND P+4 P-4 USB_PWR Print Port Header AFD# ERROR# PINIT# SLIN# (25-pin LPT1) GND (see p.11 No.
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). D. MIC_RET and OUT_RET are for HD audio panel only.
Chassis and Power Fan Connectors GND +12V CHA_FAN_SPEED (3-pin CHA_FAN1) (see p.11 No. 16) (3-pin PWR_FAN1) (see p.11 No. 13) CPU Fan Connector (4-pin CPU_FAN1) Please connect the fan cables to the fan connectors and match the black wire to the ground pin. PWR_FAN_SPEED +12V GND +12V CPU_FAN_SPEED FAN_SPEED_CONTROL GND (see p.11 No. 5) 1 2 3 4 Please connect the CPU fan cable to this connector and match the black wire to the ground pin.
2.9 Serial A ATTA (SA (SATTA) / Serial A ATTAII (SA (SATTAII) Hard Disks Installation This motherboard adopts AMD SB710 south bridge chipset that supports Serial ATA (SATA) / Serial ATAII (SATAII) hard disks and RAID (RAID 0, RAID 1, RAID 10 and JBOD) functions. You may install SATA / SATAII hard disks on this motherboard for internal storage devices. This section will guide you to install the SATA / SATAII hard disks. STEP 1: Install the SATA / SATAII hard disks into the drive bays of your chassis.
2.11 SA eature and Operation SATTA / SA SATTAII HDD Hot Plug FFeature Guide This motherboard supports Hot Plug feature for SATA / SATAII HDD in RAID / AHCI mode. Please read below operation guide of SATA / SATAII HDD Hot Plug feature carefully. Before you process the SATA / SATAII HDD Hot Plug, please check below cable accessories from the motherboard gift box pack. A. 7-pin SATA data cable B. SATA power cable with SATA 15-pin power connector interface A. SATA data cable (Red) B.
How to Hot Plug a SATA / SATAII HDD: Points of attention, before you process the Hot Plug: Please do follow below instruction sequence to process the Hot Plug, improper procedure will cause the SATA / SATAII HDD damage and data loss. Step 1 Please connect SATA power cable 1x4-pin end Step 2 Connect SATA data cable to the motherboard’s SATAII connector. (White) to the power supply 1x4-pin cable.
2 . 1 2 Driver Installation Guide To install the drivers to your system, please insert the support CD to your optical drive first. Then, the drivers compatible to your system can be auto-detected and listed on the support CD driver page. Please follow the order from up to bottom side to install those required drivers. Therefore, the drivers you install can work properly. 2 .
STEP 3: Use “RAID Installation Guide” to set RAID configuration. Before you start to configure RAID function, you need to check the RAID installation guide in the Support CD for proper configuration. Please refer to the BIOS RAID installation guide part of the document in the following path in the Support CD: .. \ RAID Installation Guide STEP 4: Install Windows® XP / XP 64-bit OS on your system. After step 1, 2, 3, you can start to install Windows® XP / XP 64-bit OS on your system.
NOTE1. If you install Windows® 7 / 7 64-bit / VistaTM / VistaTM 64-bit on IDE HDDs and want to manage (create, convert, delete, or rebuild) RAID functions on SATA / SATAII HDDs, you still need to set up “SATA Operation Mode” to [RAID] in BIOS first. Then, please set the RAID configuration by using the Windows RAID installation guide in the following path in the Support CD: .. \ RAID Installation Guide NOTE2.
Using SATA / SATAII HDDs without NCQ and Hot Plug functions (IDE mode) STEP 1: Set up BIOS. A. Enter BIOS SETUP UTILITY Advanced screen Storage Configuration. B. Set the “SATA Operation Mode” option to [IDE]. STEP 2: Install Windows® XP / XP 64-bit OS on your system. 2.14.
2 . 1 5 Untied Overclocking TTechnology echnology This motherboard supports Untied Overclocking Technology, which means during overclocking, FSB enjoys better margin due to fixed PCI / PCIE buses. Before you enable Untied Overclocking function, please enter “Overclock Mode” option of BIOS setup to set the selection from [Auto] to [CPU, PCIE, Async.].
3. BIOS SETUP UTILITY 3.1 Introduction This section explains how to use the BIOS SETUP UTILITY to configure your system. The SPI Memory on the motherboard stores the BIOS SETUP UTILITY. You may run the BIOS SETUP UTILITY when you start up the computer. Please press or during the Power-On-Self-Test (POST) to enter the BIOS SETUP UTILITY, otherwise, POST will continue with its test routines.
3.1.2 Navigation Keys Please check the following table for the function description of each navigation key. Navigation Key(s) / / + / 3.
3.3 OC TTweak weak er Screen weaker In the OC Tweaker screen, you can set up overclocking features. Main OC Tweaker BIOS SETUP UTILITY Advanced H/W Monitor Boot CPU Configuration Exit Overclocking may cause damage to your CPU and motherboard. It should be done at your own risk and expense. Overclock Mode CPU Frequency (MHz) PCIE Frequency (MHz) Spread Spectrum [Auto] [200] [100] [Auto] Processor Maximum Multiplier Processor Maximum Voltage Multiplier/Voltage Change x12 2400 MHZ 1.
Main OC Tweaker BIOS SETUP UTILITY Advanced H/W Monitor Boot CPU Configuration Security Exit Overclocking may cause damage to your CPU and motherboard. It should be done at your own risk and expense. Overclock Mode CPU Frequency (MHz) PCIE Frequency (MHz) Spread Spectrum [Auto] [200] [100] [Auto] Processor Maximum Multiplier Processor Maximum Voltage Multiplier/Voltage Change Processor Multiplier Processor Voltage x12 2400 MHZ 1.400 V [Manual] [x12 2400 MHz] [1.
DRAM Voltage Use this to select DRAM voltage. Configuration options: [Auto], [2.60V] to [2.95V]. The default value is [Auto]. Memory Timing BIOS SETUP UTILITY OC Tweaker Memory Timing CAS Latency TRAS TRP TRCD TRRD TRC MA Timing Burst Length Bank Interleaving [Auto] [Auto] [Auto] [Auto] [Auto] [Auto] [Auto] [4 Beats] [Auto] +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc.
Bank Interleaving Interleaving allows memory accesses to be spread out over banks on the same node, or accross nodes, decreasing access contention. Chipset Settings Onboard GPU Clock Override This allows you to enable or disable the Onboard GPU Clock Override feature. Onboard GPU Clock This option only appears when you enable “Onboard GPU Clock Override”. The default value is [500]. mGPU Voltage Use this to select mGPU voltage. Configuration options: [Auto], [1.10V] to [1.45V]. The default value is [Auto].
3.4 Advanced Screen In this section, you may set the configurations for the following items: CPU Configuration, Chipset Configuration, ACPI Configuration, Storage Configuration, PCIPnP Configuration, Floppy Configuration, SuperIO Configuration, and USB Configuration. Main BIOS SETUP UTILITY Boot OC Tweaker Advanced H/W Monitor Advanced Settings Security Exit Options for CPU WARNING : Setting wrong values in below sections may cause system to malfunction.
3.4.1 CPU Configuration BIOS SETUP UTILITY Advanced Enable or disable the feature of Boot Failure Guard. CPU Configuration Boot Failure Guard Cool' n' Quiet Memory Hole [Enabled] [Auto] [Disabled] +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. Boot Failure Guard Enable or disable the feature of Boot Failure Guard.
3.4.2 Chipset Configuration BIOS SETUP UTILITY Advanced Chipset Settings Auto/Enable/Disable Onboard HD Audio. Onboard HD Audio Front Panel CD-In OnBoard Lan Primary Graphics Adapter [Auto] [Enabled] [Enabled] [Enabled] [PCI] Internal Graphics Mode Share Memory Onboard HDMI HD Audio Surround View [UMA] [Auto] [Disabled] [Disabled] +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc.
Onboard HDMI HD Audio This allows you to enable or disable the onboard HDMI HD Audio in AMD 785G. Surround View This allows you to enable or disable the Surround View feature or Hybrid CrossFireXTM feature. 3.4.
PCI Devices Power On Use this item to enable or disable PCI devices to turn on the system from the power-soft-off mode. PS/2 Keyboard Power On Use this item to enable or disable PS/2 keyboard to turn on the system from the power-soft-off mode. RTC Alarm Power On Use this item to enable or disable RTC (Real Time Clock) to power on the system. ACPI HPET Table Use this item to enable or disable ACPI HPET Table. The default value is [Disabled].
3.4.4 Storage Configuration BIOS SETUP UTILITY Advanced Configure onboard serial ATA controller. Storage Configuration Onboard SATA Controller SATA Operation Mode [Enabled] [IDE] [Hard Disk] [Not Detected] [Not Detected] [Not Detected] [Not Detected] [Not Detected] [Not Detected] [Not Detected] IDE1 Master IDE1 Slave SATAII_1 SATAII_2 SATAII_3 SATAII_4 SATAII_5 eSATAII_1 +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.
TYPE Use this item to configure the type of the IDE device that you specify. Configuration options: [Not Installed], [Auto], [CD/DVD], and [ARMD]. [Not Installed]: Select [Not Installed] to disable the use of IDE device. [Auto]: Select [Auto] to automatically detect the hard disk drive. After selecting the hard disk information into BIOS, use a disk utility, such as FDISK, to partition and format the new IDE hard disk drives. This is necessary so that you can write or read data from the hard disk.
3.4.5 PCIPnP Configuration BIOS SETUP UTILITY Advanced Value in units of PCI clocks for PCI device latency timer register. Advanced PCI / PnP Settings PCI Latency Timer PCI IDE BusMaster [32] [Enabled] +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. Setting wrong values in this section may cause the system to malfunction. PCI Latency Timer The default value is 32.
3.4.6 Floppy Configuration In this section, you may configure the type of your floppy drive. BIOS SETUP UTILITY Advanced Floppy Configuration [1.44 MB 31 2"] Floppy A Select the type of floppy drive connected to the system. +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. 3.4.
Parallel Port Address Use this item to set the address for the onboard parallel port or disable it. Configuration options: [Disabled], [378], and [278]. Parallel Port Mode Use this item to set the operation mode of the parallel port. The default value is [ECP+EPP]. If this option is set to [ECP+EPP], it will show the EPP version in the following item, “EPP Version”. Configuration options: [Normal], [Bi-Directional], and [ECP+EPP]. EPP Version Use this item to set the EPP version. Configuration options: [1.
3.4.8 USB Configuration BIOS SETUP UTILITY Advanced USB Configuration USB Controller USB 2.0 Support Legacy USB Support To enable or disable the onboard USB controllers. [Enabled] [Enabled] [Enabled] +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. USB Controller Use this item to enable or disable the use of USB controller. USB 2.0 Support Use this item to enable or disable the USB 2.
3.5 Hardware Health Event Monitoring Screen In this section, it allows you to monitor the status of the hardware on your system, including the parameters of the CPU temperature, motherboard temperature, CPU fan speed, chassis fan speed, and the critical voltage. Main OC Tweaker BIOS SETUP UTILITY Boot Advanced H/W Monitor Hardware Health Event Monitoring CPU Temperature M / B Temperature : 37 C / 98 F : 27 C / 80 F CPU Fan Speed Chassis Fan Speed Power Fan Speed : 4722 RPM : N/A : N/A Vcore + 3.
3.6 Boot Screen In this section, it will display the available devices on your system for you to configure the boot settings and the boot priority. Main OC Tweaker BIOS SETUP UTILITY Advanced H/W Monitor Boot Boot Settings Exit Configure Settings during System Boot.
Boot Logo Use this option to select logo in POST screen. This option only appears when you enable the option “Full Screen Logo”. Configuration options: [Auto], [EUP], [Scenery] and [ASRock]. The default value is [Auto]. Boot From Onboard LAN Use this item to enable or disable the Boot From Onboard LAN feature. Boot Up Num-Lock If this item is set to [On], it will automatically activate the Numeric Lock function after boot-up. 3 .
3.8 Exit Screen Main OC Tweaker BIOS SETUP UTILITY Advanced H/W Monitor Boot Exit Options Exit system setup after saving the changes. Save Changes and Exit Discard Changes and Exit Discard Changes Load Load Load Load Load Security Exit F10 key can be used for this operation.
4. Software Support 4.1 Install Operating System This motherboard supports various Microsoft® Windows® operating systems: 7 / 7 64-bit / Vista TM / VistaTM 64-bit / XP / XP Media Center / XP 64-bit. Because motherboard settings and hardware options vary, use the setup procedures in this chapter for general reference only. Refer to your OS documentation for more information. 4.
