Page 2 - Copyright © 2009 ASUSTeK Computer Inc. All Rights Reserved.
ii Copyright © 2009 ASUSTeK Computer Inc. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kep...
Page 3 - Contents; M4A785D-M PRO specifications summary; Chapter 1: Product introduction; Innovative ASUS features
iii Contents Notices ......................................................................................................... viSafety information ..................................................................................... viiAbout this guide .................................................
Page 4 - Chapter 2: BIOS information
iv Contents 1.11 Software support ........................................................................ 1-30 1.11.1 Installing an operating system ...................................... 1-30 1.11.2 Support DVD information .............................................. 1-30 Chapter 2: BIOS informa...
Page 6 - Notices; Federal Communications Commission Statement; • Consult the dealer or an experienced radio/TV technician for help.; Canadian Department of Communications Statement; REACH; DO NOT
vi Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference, and• This device must accept any interference received including interference that may ca...
Page 7 - Operation safety; Safety information; Electrical safety; motherboard) and is defined as a CLASS 1 LASER PRODUCT.
vii Operation safety • Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package. • Before using the product, ensure that all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer...
Page 8 - Where to find more information; ASUS websites; Conventions used in this guide; B o l d t e x t; Used to emphasize a word or a phrase.; About this guide; How this guide is organized; • Chapter 1: Product introduction
viii Where to find more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. 2. Optional documentation ...
Page 11 - Package contents; x Serial ATA cables; Chapter 1; Product introduction; up to 5200MT/s via HyperTransportTM 3.0 based system bus, and AMD; AMD; Special features; Product highlights
ASUS M4A785D-M PRO 1-1 1.1 Welcome! Thank you for buying an ASUS ® M4A785D-M PRO motherboard! The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards! Before you start installing the motherboard, and hardware d...
Page 12 - AMD Cool ‘n’ Quiet Technology; The motherboard supports the AMD Cool ‘n’ Quiet Technology, which
1-2 Chapter 1: Product introduction AMD 785G/SB710 chipset is designed to support up to 5200MT/s HyperTransport™ 3.0 (HT3.0) interface speed and PCI Express™ 2.0 x 16 graphics. It is optimized with AMD’s latest AM3 and multi-core CPUs to provide excellent system performance and overclocking capabili...
Page 13 - ASUS Express Gate; ASUS EPU
ASUS M4A785D-M PRO 1-3 1.3.2 Innovative ASUS features ASUS Express Gate Express Gate is a unique OS built into the motherboard. Five seconds after bootup, you can instantly surf the Internet without entering the Windows ® OS. • ASUS Express Gate supports file uploading from SATA HDDs, ODDs, and USB ...
Page 14 - Before you proceed; any motherboard settings.; AI NET2; ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to; ASUS EZ Flash 2; using a bootable floppy disk or an OS-based utility.; Green ASUS; impact on the environment.
1-4 Chapter 1: Product introduction 1.4 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component.• Use a grounded wrist strap or touch a safely gr...
Page 15 - Onboard LED; Placement direction; Place this side towards; Screw holes; Motherboard overview
ASUS M4A785D-M PRO 1-5 Onboard LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard co...
Page 16 - Motherboard layout; Layout contents
1-6 Chapter 1: Product introduction 1.5.3 Motherboard layout Connectors/Jumpers/Slots Page Connectors/Jumpers/Slots Page 1. CPU, chassis, and power fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN, 3-pin PWR_FAN) 1-29 8. Onboard LED 1-5 2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-24 9. Clea...
Page 17 - Installing the CPU; Unlock the socket by pressing the lever; Socket lever; Gold triangle
ASUS M4A785D-M PRO 1-7 1.6 Central Processing Unit (CPU) The motherboard comes with an AM2+ / AM2 socket designed for Phenom™ II / Athlon™ II / Phenom™ / Athlon™/ Sempron™ family processors (AM3 / AM2+ / AM2). The AM3/AM2/AM2+ socket has a different pinout from the 940-pin socket designed for the AM...
Page 18 - When the CPU is in place, push down the
1-8 Chapter 1: Product introduction 7. Connect the CPU fan cable to the CPU_FAN connector on the motherboard. Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector. 5. When the CPU is in place, push down the socket lever to secure the...
Page 19 - Installing the heatsink and fan; To install the CPU heatsink and fan:
ASUS M4A785D-M PRO 1-9 1.6.2 Installing the heatsink and fan Ensure that you use only AMD-certified heatsink and fan assembly. To install the CPU heatsink and fan: 1. Place the heatsink on top of the installed CPU, making sure that the heatsink fits properly on the retention module base. • The reten...
Page 20 - System memory; Overview; the DDR2 DIMM sockets:; sound denotes that the retention bracket is in place.; heatsink and fan to the module base.
1-10 Chapter 1: Product introduction 1.7 System memory 1.7.1 Overview The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets. A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 D...
Page 21 - Memory configurations
ASUS M4A785D-M PRO 1-11 1.7.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC/non-ECC DDR2 DIMMs into the DIMM sockets. M4A785D-M PRO Motherboard Qualified Vendors Lists (QVL) • You may install varying memory sizes in Channel A and Channel B. The system maps the total s...
Page 28 - DDR2 DIMM notch; Installing a DIMM; unlock a DDR2 DIMM socket.; Removing a DIMM; Remove the DIMM from the socket.; Locked Retaining Clip
1-18 Chapter 1: Product introduction DDR2 DIMM notch 1 1 2 Unlocked retaining clip 1 DDR2 DIMM notch 2 1 1.7.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage to both the motherboard and the components. 1....
Page 29 - Expansion slots; Installing an expansion card; Assign an IRQ to the card.; PCI slots; comply with PCI specifications.; PCI Express x1 slot; comply with the PCI Express specifications.; PCI Express x16 slot; Express specifications.
ASUS M4A785D-M PRO 1-19 1.8 Expansion slots In the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that they support. Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury...
Page 30 - Jumpers; key during the boot process and enter BIOS setup to
1-20 Chapter 1: Product introduction 1.9 Jumpers 1. Clear RTC RAM (CLRTC) This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM d...
Page 31 - Connectors; Rear panel connectors; available for connecting USB 2.0 devices.; LAN port LED indications; LAN port
ASUS M4A785D-M PRO 1-21 1.10 Connectors 1.10.1 Rear panel connectors 1. PS/2 keyboard/mouse combo port (purple). This port is for a PS/2 keyboard/mouse. 2. Optical S/PDIF Out port. This port connects an external audio output device via an optical S/PDIF cable. 3. Video Graphics Adapter (VGA) port. T...
Page 32 - Dual display output support; supported for your motherboard:; Dual display outputs; The dual display function works only under Windows.
1-22 Chapter 1: Product introduction 12. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. 13. External SATA port. This port connects to an external Serial ATA hard disk drive. 14. DVI-D port. This port is for any DVI-D compatible d...
Page 33 - Playback of HD DVD and Blu-Ray Discs; requirements listed below.; Suggested list; DIMM; File format
ASUS M4A785D-M PRO 1-23 Playback of HD DVD and Blu-Ray Discs • For better playback quality, we recommend that you follow the system requirements listed below. Suggested list CPU AMD ® Athlon 4400+ DIMM DDR2 800 (1GB or higher) BIOS setup Frame Buffer Size--256MB or higher File format Best resolution...
Page 34 - Internal connectors; push down firmly until the connectors completely fit.
1-24 Chapter 1: Product introduction 1.10.2 Internal connectors 1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) These connectors are for an ATX power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down...
Page 35 - following modes to configure your devices:
ASUS M4A785D-M PRO 1-25 2. IDE connector (40-1 pin PRI_IDE) The onboard IDE connector is for Ultra DMA 133/100/66 signal cable. There are three connectors on each Ultra DMA 133 / 100 / 66 signal cable: blue, black, and gray. Connect the blue connector to the motherboard’s IDE connector, then select ...
Page 36 - OnChip
1-26 Chapter 1: Product introduction • The motherboard does not provides a floppy disk drive connector. You could use a USB floppy disk drive when installing Windows ® XP operating system on a hard disk drive that includes a RAID/AHCI set. • Due to Windows ® XP limitation, Windows ® XP may not recog...
Page 38 - 80 Mbps connection speed.; Front Panel Select; panel audio I/O module cable to this connector.
1-28 Chapter 1: Product introduction 7. USB connectors (10-1 pin USB78, USB910, USB1112)These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2...
Page 40 - Click an item to install; To run the Support DVD; if Autorun is enabled on your computer.; Software support; Installing an operating system; This motherboard supports Windows; Support DVD information
1-30 Chapter 1: Product introduction Click an item to install Click an icon to display Support DVD/ motherboard information To run the Support DVD Place the Support DVD to the optical drive. The DVD automatically displays the Drivers menu if Autorun is enabled on your computer. If Autorun is NOT ena...
Page 41 - Chapter 2; BIOS information; Managing and updating your BIOS; Updating the BIOS; From the dropdown list, select any of the updating process:; ASUS Update utility; Installing ASUS Update; Click the Utilities
ASUS M4A785D-M PRO 2-1 Chapter 2 BIOS information 2.1 Managing and updating your BIOS • ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP). • This utility is available in the support DVD that comes with the motherboard package. Updating the BIO...
Page 42 - ASUS EZ Flash 2 utility; EZ Flash 2. You can launch EZ Flash 2 in two ways.; Tools; Update BIOS from a file
2-2 Chapter 2: BIOS information 2.1.2 ASUS EZ Flash 2 utility The ASUS EZ Flash 2 feature allows you to update the BIOS without having to use an OS-based utility. Before using this utility, download the latest BIOS file from the ASUS website at www.asus. com. To update the BIOS using EZ Flash 2:1. I...
Page 43 - ASUS CrashFree BIOS 3 utility; Recovering the BIOS; or USB flash disk for the BIOS file.
ASUS M4A785D-M PRO 2-3 • Only the USB flash disk with FAT 32/16 format and single partition can support ASUS CrashFree BIOS 3. The device size should be smaller than 8GB. • DO NOT shut down or reset the system while updating the BIOS! Doing so can cause system boot failure! 2.1.3 ASUS CrashFree BIOS...
Page 44 - Load Setup Defaults; BIOS setup program; in the CMOS RAM of the firmware chip.; power button; available options using the navigation keys.
2-4 Chapter 2: BIOS information • The default BIOS settings for this motherboard apply for most conditions to ensure optimum performance. If the system becomes unstable after changing any BIOS settings, load the default settings to ensure system compatibility and stability. Select the Load Setup Def...
Page 45 - The menu bar on top of the screen has the following main items:
ASUS M4A785D-M PRO 2-5 2.2.1 BIOS menu screen 2.2.2 Menu bar The menu bar on top of the screen has the following main items: Main For changing the basic system configuration Advanced For changing the advanced system settings Power For changing the advanced power management (APM) configuration Boot F...
Page 46 - General help; with the configuration options for; items that do not fit on the screen.; Scroll bar
2-6 Chapter 2: BIOS information 2.2.4 Menu items The highlighted item on the menu bar displays the specific items for that menu. For example, selecting Main shows the Main menu items. The other items (Advanced, Power, Boot, Tools, and Exit) on the menu bar have their respective menu items. 2.2.5 Sub...
Page 47 - Main menu; When you enter the BIOS Setup program, the; Main; menu screen appears, giving you an; a device item then press; not user-configurable. These items show Not Detected; if no IDE/SATA device is installed in
ASUS M4A785D-M PRO 2-7 2.3 Main menu When you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system information. 2.3.1 System Time [xx:xx:xx] Allows you to set the system time. 2.3.2 System Date [Day xx/xx/xxxx] Allows you to set the system date. Refe...
Page 48 - SATA Configuration; menu allows you to configure your SATA device(s). Select an item
2-8 Chapter 2: BIOS information LBA/Large Mode [Auto] Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device supports this mode, and if the device was not previously formatted with LBA mode disabled. Configuration options: [Disabled] [Auto] Block (Multi-Sector Transfe...
Page 49 - System Information; BIOS Information; Displays the auto-detected CPU specification; System Memory; Advanced menu; Advanced; JumperFree Configuration
ASUS M4A785D-M PRO 2-9 2.3.5 System Information This menu gives you an overview of the general system specifications. The BIOS automatically detects the items in this menu. BIOS Information Displays the auto-detected BIOS information Processor Displays the auto-detected CPU specification System Memo...
Page 50 - CPU Overclocking; Allows you to set the overclock options.; PCIE Overclocking
2-10 Chapter 2: BIOS information CPU Ratio and Voltage:Processor Frequency Multiplier [Auto] Allows you to set the processor frequency multiplier. Configuration options: [Auto] [x8.0 1600MHz] [x8.5 1700MHz] [x9.0 1800MHz] [x9.5 1900MHz] [x10.0 2000MHz] [x10.5 2100MHz] [x11.0 2200 MHz] [x11.5 2300 MH...
Page 51 - Memory Clock Mode; Allows you to set the memory clock value.
ASUS M4A785D-M PRO 2-11 Hyper Transport Configuration HT Link Frequency [Auto] Allows you to set the HyperTransport link frequency. Configuration options: [Auto] [200 MHz] [400 MHz] [600 MHz] [800 MHz] [1 GMHz] [1.2 GMHz] [1.4 GMHz] [1.6 GMHz] [1.8 GMHz] [2.0 GMHz] [2.1 GMHz] [2.4 GMHz] [2.6 GMHz] H...
Page 52 - CPU Configuration; Allows you to enable or disable the microcode updation.
2-12 Chapter 2: BIOS information 2.4.2 CPU Configuration The items in this menu show the CPU-related information that the BIOS automatically detects. GART Error Reporting [Disabled] This option should remain disabled for the normal operation. The driver developer may enable it for testing purpose. C...
Page 53 - Chipset; ECC Configuration
ASUS M4A785D-M PRO 2-13 2.4.3 Chipset The Chipset menu allows you to change the advanced chipset settings. Select an item then press <Enter> to display the sub-menu. NorthBridge ConfigurationMemory Configuration Bank Interleaving [Auto] Allows you to enable the bank memory interleaving. Config...
Page 54 - Allows you to enable or disable the AMD 785 HDMI Audio.; Onboard Devices Configuration; Allows you to select the Serial Port1 base address.
2-14 Chapter 2: BIOS information AMD 785 HDMI Audio [Enabled] Allows you to enable or disable the AMD 785 HDMI Audio. Configuration options: [Disabled] [Enabled] 2.4.4 Onboard Devices Configuration Serial Port1 Address [3F8/IRQ4] Allows you to select the Serial Port1 base address. Configuration opti...
Page 55 - Auto; USB Mass Storage Device Configuration; None; USB Configuration; PCI PnP; devices, and setting the memory size block for legacy ISA devices.
ASUS M4A785D-M PRO 2-15 USB Functions [Enabled] Enables or disables the USB functions. Configuration options: [Enabled] [Disabled] USB 2.0 Controller [Enabled] Enables or disables the USB 2.0 Controller. Configuration options: [Enabled] [Disabled] Legacy USB Support [Auto] Allows you to enable or di...
Page 56 - ACPI; Power Off; Power menu
2-16 Chapter 2: BIOS information 2.5.1 Suspend Mode [Auto] Allows you to select the Advanced Configuration and Power Interface (ACPI) state to be used for system suspend. Configuration options: [S1 (POS) Only] [S3 Only] [Auto] [S1(POS) Only] - Enables the system to enter the ACPI S1 (Power on Suspen...
Page 57 - HW Monitor Configuration; Ignored; Boot menu; Boot; Enable or disable PS/2 Keyboard/Mouse to generate a wake event.; Enabled
ASUS M4A785D-M PRO 2-17 2.5.5 HW Monitor Configuration CPU Temperature [xxxºC/xxxºF] MB Temperature [xxxºC/xxxºF] The onboard hardware monitor automatically detects and displays the motherboard and CPU temperatures. Select Ignored if you do not wish to display the detected temperatures. CPU/Power/Ch...
Page 58 - Security; Change Supervisor Password; Boot Device Priority; st ~ xxth Boot Device
2-18 Chapter 2: BIOS information Set this item to [Enabled] to use the ASUS MyLogo 2™ feature. AddOn ROM Display Mode [Force BIOS] Sets the display mode for option ROM. Configuration options: [Force BIOS] [Keep Current] Bootup Num-Lock [On] Allows you to select the power-on state for the NumLock. Co...
Page 59 - View Only allows access but does not allow change to any field.; Change User Password; Confirm the password when prompted.; Confirm the password when prompted.
ASUS M4A785D-M PRO 2-19 After you have set a supervisor password, the other items appear to allow you to change other security settings. User Access Level [Full Access] This item allows you to select the access restriction to the Setup items. Configuration options: [No Access] [View Only] [Limited] ...
Page 60 - Tools menu; confirm your choice.; AI NET 2; first screen of Express Gate for user action.
2-20 Chapter 2: BIOS information 2.7 Tools menu 2.7.1 ASUS EZ Flash 2 Allows you to run ASUS EZ Flash 2. When you press <OK>, a confirmation message appears. Use the left/right arrow key to select between [Yes] or [No] , then press <OK> to confirm your choice. ASUS EZ Flash 2 Express Gat...
Page 61 - Exit & Discard Changes; Password, the BIOS asks for a confirmation before exiting.; Discard Changes; OK; Exit menu
ASUS M4A785D-M PRO 2-21 Exit & Discard Changes Select this option only if you do not want to save the changes that you made to the Setup program. If you made changes to fields other than System Date, System Time, and Password, the BIOS asks for a confirmation before exiting. Discard Changes This...