M4A785G HTPC
Series
Motherboard
E4849
First Edition V1
July 2009
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 kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK Computer Inc. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, 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 USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
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 identication or explanation and to the
owners’ benet, without intent to infringe.
ii
Contents
Contents ...................................................................................................... iii
Notices ......................................................................................................... vi
Safety information ..................................................................................... vii
About this guide ....................................................................................... viii
M4A785G HTPC Series specications summary ..................................... ix
Chapter 1 Product introduction
1.1 Welcome! ...................................................................................... 1-1
1.2 Package contents .........................................................................
1.3 Special features ............................................................................
1.3.1 Product highlights ...........................................................
1.3.2 Innovative ASUS features ...............................................
1.4 Before you proceed .....................................................................
1.5 Motherboard overview .................................................................
1.5.1 Placement direction ........................................................
1.5.2 Screw holes ....................................................................
1.5.3 Motherboard layout .........................................................
1.5.4 Layout contents ...............................................................
1.6 Central Processing Unit (CPU) ...................................................
1.6.1 Installing the CPU ...........................................................
1.6.2 Installing the heatsink and fan ........................................
1.7 System memory .........................................................................
1.7.1 Overview .......................................................................
1.7.2 Memory congurations ..................................................
1.7.3 Installing a DIMM ..........................................................
1.7.4 Removing a DIMM ........................................................
1.8 Expansion slots ..........................................................................
1.8.1 Installing an expansion card .........................................
1.8.2 Conguring an expansion card .....................................
1.8.3 PCI slot .........................................................................
1.8.4 PCI Express x1 slots .....................................................
1.8.5 PCI Express 2.0 x16 slot ...............................................
1.9 Jumpers ......................................................................................
1.10 Connectors .................................................................................
1.10.1 Rear panel connectors ..................................................
1.10.2 Internal connectors .......................................................
1-1
1-1
1-1
1-2
1-4
1-5
1-5
1-5
1-6
1-6
1-7
1-7
1-8
1-10
1-10
1-10
1-18
1-18
1-19
1-19
1-19
1-19
1-19
1-19
1-20
1-21
1-21
1-25
iii
Contents
1.11 Software support ........................................................................ 1-34
1.11.1 Installing an operating system ......................................
1.11.2 Support DVD information ..............................................
1.11.3 ASUS Home Theater Gate
Chapter 2 BIOS information
2.1 Managing and updating your BIOS ............................................ 2-1
2.1.1 ASUS Update utility ........................................................
2.1.2 ASUS EZ Flash 2 utility ...................................................
2.1.3 ASUS CrashFree BIOS 3 utility ......................................
2.2 BIOS setup program ....................................................................
2.2.1 BIOS menu screen ..........................................................
2.2.2 Menu bar .........................................................................
2.2.3 Navigation keys ...............................................................
2.2.4 Menu items .....................................................................
2.2.5 Submenu items ...............................................................
2.2.6 Conguration elds .........................................................
2.2.7 General help ...................................................................
2.2.8 Pop-up window ...............................................................
2.2.9 Scroll bar .........................................................................
2.3 Main menu ....................................................................................
2.3.1 System Time [xx:xx:xx] ...................................................
2.3.2 System Date [Day xx/xx/xxxx] .........................................
2.3.3 Language [English] .........................................................
2.3.4 Primary IDE Master/Slave ...............................................
2.3.5 SATA 1–5/ESATA ...........................................................
2.3.6 Storage Conguration .....................................................
2.3.7 System Information .........................................................
2.4 Ai Tweaker menu ..........................................................................
2.4.1 Ai Overclock Tuner [Auto] ...............................................
2.4.2 CPU Ratio [Auto] .............................................................
2.4.3 DRAM Frequency [Auto] .................................................
2.4.4 CPU/NB Frequency [Auto] ............................................
2.4.5 HT Link Frequency [Auto] .............................................
2.4.6 Memory Conguration ...................................................
2.4.7 DRAM Timing Conguration .........................................
............................................ 1-35
1-34
1-34
2-1
2-2
2-3
2-3
2-4
2-4
2-5
2-5
2-5
2-5
2-5
2-5
2-5
2-6
2-6
2-6
2-6
2-6
2-7
2-8
2-8
2-9
2-9
2-9
2-9
2-10
2-10
2-10
2-10
iv
Contents
2.4.8 CPU Voltage [Auto] ....................................................... 2-12
2.4.9 CPU/NB Voltage [Auto] .................................................
2.4.10 DRAM Voltage [Auto] ....................................................
2.4.11 NB Voltage [Auto] ..........................................................
2.4.12 HT/SB Voltage [Auto] ....................................................
2.4.13 CPU Spread Spectrum [Auto] .......................................
2.4.14 PCIE Spread Spectrum [Auto] ......................................
2.5 Advanced menu .........................................................................
2.5.1 CPU Conguration ........................................................
2.5.2 Chipset ..........................................................................
2.5.3 Onboard Devices Conguration ....................................
2.5.4 USB Conguration ........................................................
2.5.5 PCIPnP .........................................................................
2.6 Power menu ................................................................................
2.6.1 Suspend Mode [Auto] ...................................................
2.6.2 ACPI 2.0 Support [Disabled] .........................................
2.6.3 ACPI APIC support [Enabled] .......................................
2.6.4 Chassis LED [On] .........................................................
2.6.5 EuP Ready [Disabled] ...................................................
2.6.6 APM Conguration ........................................................
2.6.7 Hardware Monitor .........................................................
2.7 Boot menu ..................................................................................
2.7.1 Boot Device Priority ......................................................
2.7.2 Boot Settings Conguration ..........................................
2.7.3 Security .........................................................................
2.8 Tools menu .................................................................................
2.8.1 ASUS EZ Flash 2 ..........................................................
2.8.2 Express Gate [Auto] ......................................................
2.8.3 AI NET 2
2.9 Exit menu ....................................................................................
........................................................................ 2-21
2-12
2-12
2-12
2-12
2-12
2-12
2-13
2-13
2-14
2-15
2-15
2-16
2-16
2-17
2-17
2-17
2-17
2-17
2-17
2-18
2-19
2-19
2-19
2-20
2-21
2-21
2-21
2-22
v
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 cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with manufacturer’s instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics card is required
to assure compliance with FCC regulations. Changes or modications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://green.asus.com/english/REACH.htm.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.
vi
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not sure
about the voltage of the electrical outlet you are using, contact your local power company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
• The optical S/PDIF is an optional component (may or may not be included in your
motherboard) and is dened as a CLASS 1 LASER PRODUCT.
INVISIBLE LASER RADIATION, AVOID EXPOSURE TO BEAM.
• Never dispose of the battery in re. It could explode and release harmful substances into
the environment.
• Never dispose of the battery with your regular household waste. Take it to a hazardous
material collection point.
• Never replace the battery with an incorrect battery type.
• RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
• DISPOSE OF USED BATTERIES ACCORDING TO THE ABOVE BATTERY-RELATED
INSTRUCTIONS.
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 all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may become wet.
This motherboard should only be used in environments with ambient temperatures between
5°C (41°F) and 40°C (104°F).
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
vii
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
•
Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it supports.
• Chapter 2: BIOS setup
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself
when trying to complete a task.
CAUTION: Information to prevent damage to the components
when trying to complete a task.
IMPORTANT: Instructions that you MUST follow to complete a
task.
NOTE: Tips and additional information to help you complete a
task.
Where to nd 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
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
Typography
Bold text Indicates a menu or an item to select.
Italics
Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign means
that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1>+<Key2>+<Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl>+<Alt>+<D>
viii
M4A785G HTPC Series specications summary
CPU AMD® AM3/AM2+/AM2 Phenom™ II / Athlon™ II /
Chipset AMD® 785G / SB710
System bus Up to 5200 MT/s; HyperTransport™ 3.0 interface for
Memory Dual-channel memory architecture
Graphics Integrated ATI Radeon™ HD 4200 GPU
Expansion Slots 1 x PCIe 2.0 x16 slot
Phenom™ / Athlon™ / Sempron™ Processors
AMD® 45nm CPU support
AMD Cool’n’Quiet™ Technology
AM3 / AM2+ CPU
2000 / 1600 MT/s for AM2 CPU
- 4 x 240-pin DIMM sockets support unbufferred
ECC / non-ECC DDR2 1200(O.C)* / 1066* / 800 /
667 MHz memory modules
- Supports up to 16GB system memory
* Due to AMD® CPU limitation, DDR2 1200/1066 are
supported by AM3 / AM2+ CPUs for one DIMM per channel
only. Refer to www.asus.com or this user manual for the
Memory QVL (Qualied Vendors Lists).
** Due to OS limitation, when installing total memory of 4GB
capacity or more, Windows 32-bit operation system may
only recognize less than 3GB. Hence, a total installed
memory of less than 3GB is recommended.
- Supports HDMI™ Technology with max. resolution up
to 1920 x 1200 (1080P)
- Supports Dual-link DVI with max. resolution up to
2560 x 1600 @ 60Hz
- Supports D-Sub with max. resolution up to
2560 x 1440 @ 75Hz for 16:9 format
- Hybrid CrossFireX™ support
- Dual independent displays support with HDMI / DVI
and D-Sub)
- Supports Microsoft® DirectX 10.1, OpenGL 2.0,
Pixel Shader 4.0
- Hardware Decode Acceleration for H.264, VC-1, and
MPEG-2
- Maximum shared memory of 512MB
2 x PCIe x1 slots
1 x PCI 2.2 slot
(continued on the next page)
ix
M4A785G HTPC Series specications summary
Storage SB710 Chipset:
- 1 x Ultra DMA 133/100/66 for up to 2 PATA devices
- 5 x SATA 3.0 Gb/s ports with RAID 0, 1 and 10 support
- 1 x External SATA 3.0 Gb/s port
* Due to Window® XP/Vista™ limitation, the RAID array with
the total capacity over 2TB cannot be set as a boot disk. A
RAID array over 2TB can only be set as a data disk only.
LAN Realtek® 8112L Gigabit LAN controller featuring AI NET 2
High Denition Audio Absolute Pitch Hi-Fi featuring ENVY HD
- 9.1-channel High Denition Audio
- DTS Surround Sensation UltraPC
(supports Windows® Vista™ and Windows® 7 only)
- Lossless 192khz/24-bit BD audio
- Supports Jack-Detection and Multi-Streaming
- 2-channel gold-plated RCA output at back I/O
- Optical S/PDIF Out port at back I/O
IEEE 1394a JMicron® JMB381 controller supports 2 x IEEE 1394a ports
USB 10 x USB 2.0 /1.1 ports (6 ports at midboard; 4 ports at
back panel)
AI HTPC Unique
Features
ASUS HTPC Features:
- ASUS Absolute Pitch Hi-Fi
- ASUS Home Theater Gate
- ASUS Tranquil Mode (AM3/AM2+ CPUs only)
- DTS Surround Sensation UltraPC (supports Windows
®
Vista™ and Window® 7 only)
ASUS Express Gate
ASUS Quiet Thermal Solution
- ASUS Fanless Design: Soundwave Heat-sink
ASUS EZ DIY
- ASUS Q-Connector
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
Other Features ASUS MyLogo 2™
(continued on the next page)
x
M4A785G HTPC Series specications summary
ASUS Exclusive
Overclocking Features
Rear panel I/O ports 1 x S/PDIF Out port (Optical)
Internal I/O connectors 3 x USB connectors support 6 USB ports
Precision Tweaker:
- vCore: Adjustable CPU voltage at 0.0125V increment
SFS (Stepless Frequency Selection):
- FSB tuning from 200MHz up to 600MHz at 1MHz
increment
- GPU tuning from 500MHz up to 1500MHz
- PCIe frequency tuning from 100MHz up to 150MHz at
1MHz increment
Overclocking protection:
- ASUS C.P.R. (CPU Parameter Recall)
2-channel RCA audio output ports
1 x HDMI Out port
1 x D-Sub Out port
1 x DVI Out port
1 x IEEE 1394a port
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
1 x External SATA port
10-channel audio I/O ports
1 x IDE connector
5 x SATA connectors
1 x CPU Fan connector
2 x Chassis Fan connector
1 x Power Fan connector
1 x IEEE1394a connector
1 x Front panel audio connector
1 x S/PDIF Out Header
1 x CD audio in
1 x 24-pin ATX Power connector
1 x 4-pin ATX 12V Power connector
1 x 4-pin ATX Audio Power connector
1 x System Panel (Q-Connector)
(continued on the next page)
xi
M4A785G HTPC Series specications summary
BIOS features 16 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM2.0,
Support DVD contents Drivers
Form factor uATX form factor: 9.6 in x 9.6 in (24.4 cm x 24.4 cm)
*Specications are subject to change without notice.
SM BIOS 2.5, ACPI 2.0
ASUS Home Theater Gate
ASUS Express Gate
ASUS PC Probe II
ASUS Update
Anti-Virus Utility (OEM version)
xii
Chapter 1
Product introduction
1.1 Welcome!
Thank you for buying an ASUS® M4A785G HTPC Series 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 devices on it, check the items in
your package with the list below.
1.2 Package contents
Check your motherboard package for the following items.
Motherboard ASUS M4A785G HTPC Series motherboard
Cables 1 x Ultra DMA 133/100/66 cable
2 x Serial ATA signal cables
Accessories 1 x I/O shield
1 x 2 in 1 Q-connector (USB and system panel;
Retail version only)
1 x ASUS Home Theater Gate Remote Controller set
(RC Edition only)
Application DVD ASUS motherboard support DVD
Documentations User manual
If any of the above items is damaged or missing, contact your retailer.
1.3 Special features
1.3.1 Product highlights
AMD® Phenom™ II / Athlon™ II / Sempron™ 100 Series
Chapter 1: Product introduction 1-1
processors (AM3 CPU)
This motherboard supports AMD® AM3 multi-core processors with
unique L3 cache and delivers better overclocking capabilities with less
power consumption. It features dual-channel DDR2 1200(O.C.)/1066
memory support and accelerates data transfer rate up to 5200MT/s via
HyperTransort™ 3.0 based system bus. This motherboard also supports
AMD® CPUs in the new 45nm manufacturing process.
AMD® Phenom™ X4 / Phenom™ X3 / Athlon™ X2 / Athlon™ /
Sempron™ processors (socket AM2+ / AM2)
The motherboard supports AMD® Socket AM2+ multi-core processors.
It features dual-channel DDR2 1200(O.C.)/1066 memory support, data
transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus
and AMD® Cool ‘n’ Quiet!™ Technology.
AMD® 785G chipset
The AMD® 785G Northbridge is the latest AMD chipset designed for both
HT1.0 and 5200MT/s HyperTransport™ 3.0 (HT 3.0) interface speed and
external graphics in PCI Express 2.0 standard. It features the integrated
ATI Radeon™ HD 4200 GPU and fully Directx 10.1 compliant.
Dual channel DDR2 1200(O.C.)/1066 support
This motherboard supports DDR2 1200(O.C.)/1066, which provides faster
data transfer rate and more bandwidth to increase memory data transfer
rate and computing efciency. This enhances system performance in 3D
graphics and other memory demanding applications.
Due to AM3/AM2+ CPU limitation, only one DDR2 1200(O.C.)/1066 is supported per
channel. When four DDR2 1200(O.C.)/1066 DIMMs are installed, all DIMMs run at
800MHz frequency by default for system stability.
AMD® Hybrid CrossFireX Technology
Hybrid CrossFireX Technology is a unique multi-GPU technology
combining the onboard GPU and the discrete graphics card together to
enhance 3D graphics performance.
Visit www.amd.com for the Hybrid CrossreX selected GPUs.
1.3.2 Innovative ASUS features
ASUS HTPC Features
Absolute Pitch Hi-Fi
You can easily experience home theater enjoyment on your computer with
the revolutionary ASUS Absolute Pitch Hi-Fi technology, which features
ENVY HD, Absolute Pitch BD192/24, and DTS Surround Sensation
UltraPC. ENVY HD feaures prodigious 9.1 high denition audio and
ne-textured graphic user interface that simply brings the professional
surround acoustic level to your computer. Absolute Pitch BD192/24
delivers 192khz/24bit Hi-Fi BD lossless, extreme delity sound to bring
true BD audio technology to your home theater PC. DTS Surround
Sensation UltraPC provides proprietary DTS algorithms to deliver virtual
5.1 surround through just 2 speakers.
1-2 ASUS M4A785G HTPC Series
Independent Audio Power Connector
Power is the key determinant in audio quality, thus, professional AV (Audio
Visual) equipment usually separate power supply for different channels
or analog/digital signals to ensure high sound quality. The ASUS HTPC
series is the rst motherboard series to be equipped with the revolutionary
ASUS Absolute Pitch Hi-Fi technology, which utilizes audio components
with an independent power connector. This effectively reduces electronic
noise to ensure purer sound quality.
Gold-plated RCA Connector
The gold-plated RCA stereo audio connectors are compatible with
ampliers without requiring additional connectors–making it simple to link
PCs to home theater equipment. The gold-plated cover ensures maximum
conductivity and durability of the connector.
For better sound quality, connect a power plug to the 4-pin audio power connector. Refer
to page 1-31 for details.
ASUS Tranquil Mode
The revolutionary ASUS Tranquil Mode effectively reduces fan speeds,
which lower the CPU power usage while increasing energy efciency. With
the reduction in fan speeds, the noise also decreases, thus providing you
with the perfect environment to enjoy watching movies or playing music.
ASUS Tranquil Mode is supported by AM3/AM2+ CPU only.
ASUS Home Theater Gate
The ASUS Home Theater Gate, specially designed for the HTPC series,
allows you to easily and quickly launch media applications to enjoy your
music and movies.
For RC Edition: Use the bundled remote controller to launch the ASUS
Home Theater Gate and start media applications.
ASUS Unique Features
ASUS Express Gate
Express Gate is an ASUS exclusive OS, which lets you instantly access
the Internet and key applications before entering Windows®.
The actual boot time depends on the system conguration.
Chapter 1: Product introduction 1-3
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.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due to
static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, switch off the ATX power supply and
detach its power cord. Failure to do so may cause severe damage to the motherboard,
peripherals, or components.
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
component. The illustration below shows the location of the onboard LED.
1-4 ASUS M4A785G HTPC Series
1.5 Motherboard overview
1.5.1 Placement direction
When installing the motherboard, ensure that you place it into the chassis in the correct
orientation. The edge with external ports goes to the rear part of the chassis as indicated in
the image below.
1.5.2 Screw holes
Place eight screws into the holes indicated by circles to secure the motherboard to the
chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis.
Chapter 1: Product introduction 1-5
1.5.3 Motherboard layout
1.5.4 Layout contents
Connectors/Jumpers/Slots Page
1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-26
2. CPU, Chassis and Power Fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1,
3-pin CHA_FAN2, 3-pin PWR_FAN)
3. CPU socket AM2+/AM2
4. DDR2 DIMM slots
5. Serial ATA connectors (7-pin SATA1-5)
6. IDE connector (40-1 pin PRI_IDE)
7. Onboard LED (SB_PWR)
8. Clear RTC RAM (CLRTC)
9. System panel connector (10-1 pin PANEL)
10. USB connectors (10-1 pin USB56, USB78, USB910)
11. IEEE 1394a port connector (10-1 pin IE1394_2)
12. Audio power connector (4-pin AUDIO_PWR)
13. Optical drive audio in connector (4-pin CD)
14. Front panel audio connector (10-1 pin AAFP)
15. Digital audio connector (4-1 pin SPDIF_OUT)
1-6 ASUS M4A785G HTPC Series
1-25
1-7
1-10
1-28
1-27
1-4
1-20
1-29
1-30
1-32
1-31
1-30
1-32
1-31
1.6 Central Processing Unit (CPU)
The motherboard comes with a CPU socket designed for AMD® AM3/AM2+/AM2 Phenom™ II /
Athlon™ II / Phenom™ / Athlon™ / Sempron™ processors.
The CPU socket is not compatible with AMD® Opteron™ processors. Do not install an
Opteron™ processor on this motherboard.
1.6.1 Installing the CPU
To install a CPU:
1. Locate the CPU socket on the motherboard.
2. Press the lever sideways to unlock
the socket, then lift it up to a
90°–100° angle.
Socket lever
Ensure that the socket lever is lifted up to 90°–100° angle, otherwise the CPU will not t in
completely.
3. Position the CPU above the socket such that the CPU
corner with the gold triangle matches the socket corner
with a small triangle.
4. Carefully insert the CPU into the socket until it ts in place.
The CPU ts only in one correct
orientation. DO NOT force the CPU into
the socket to prevent bending the pins
and damaging the CPU!
Chapter 1: Product introduction 1-7
Small triangle
Gold triangle
5. When the CPU is in place, push down the socket
lever to secure the CPU. The lever clicks on the side
tab to indicate that it is locked.
6. Install a CPU heatsink and fan following the
instructions that came with the heatsink package.
You can also refer to section 1.6.2 Installing the
heatsink and fan for instructions.
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.
1.6.2 Installing the heatsink and fan
Ensure that you use only AMD-certied 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 ts
properly on the retention module base.
• The retention module base is already installed on the motherboard upon purchase.
• You do not have to remove the retention module base when installing the CPU or
installing other motherboard components.
• If you purchased a separate CPU heatsink and fan assembly, ensure that a Thermal
Interface Material is properly applied to the CPU heatsink or CPU before you install the
heatsink and fan assembly.
CPU Fan
CPU Heatsink
Retention bracket
Retention Module Base
Retention bracket lock
1-8 ASUS M4A785G HTPC Series
Your boxed CPU heatsink and fan assembly should come with installation instructions for
1
3
4
5
2
the CPU, heatsink, and the retention mechanism. If the instructions in this section do not
match the CPU documentation, follow the latter.
2. Attach one end of the retention bracket to the retention module base.
3. Align the other end of the retention bracket to the retention module base. A clicking
sound denotes that the retention bracket is in place.
Ensure that the fan and heatsink assembly perfectly ts the retention mechanism module
base, otherwise you cannot snap the retention bracket in place.
4. Push down the retention bracket lock on the retention mechanism to secure the
heatsink and fan to the module base.
5. When the fan and heatsink assembly is in place, connect the CPU fan cable to the
connector on the motherboard labeled CPU_FAN.
Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.
Chapter 1: Product introduction 1-9
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 DIMMs are notched
differently to prevent installation on a DDR DIMM socket. The gure illustrates the location of
the DDR2 DIMM sockets:
Channel Sockets
Channel A DIMM_A1 and DIMM_A2
Channel B DIMM_B1 and DIMM_B2
1.7.2 Memory congurations
You may install 512MB, 1GB, 2GB and 4GB unbuffered ECC/non-ECC DDR2 DIMMs into the
DIMM sockets.
• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.
• Due to the memory address limitation on 32-bit Windows OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you install a 64-bit
Windows OS when having 4GB or more memory installed on the motherboard.
• This motherboard does not support DIMMs made up of 256 Mb chips or less. (Memory
chip capacity counts in Megabit, 8 Megabit/Mb=1 Megabyte/MB.)
• Due to AM3/AM2+ CPU limitation, only one DDR2 1200(O.C.)/1066 DIMM is supported
per channel. When four DDR2 1200(O.C.)/1066 DIMMs are installed, all DIMMs run at
800Mhz frequency by default for system stability.
• The default memory operation frequency is dependent on its SPD. Under the default
state, some memory modules for overclocking may operate at a lower frequency than
the vendor-marked value.
• For system stability, use a more efcient memory cooling system to support a full
memory load (4 DIMMs) or overclocking condition.
1-10 ASUS M4A785G HTPC Series
M4A785G HTPC Series Motherboard Qualied Vendors Lists (QVL)
DDR2-1066MHz capability (with AM3 CPU)
Vendor Part No. Size
Apacer BoxP/N:CH.02GAF.C0KK2
(78.0AG9S.9KF)
Apacer 78.AAGBD.9LZ 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
Apacer BoxP/N:CH.04GAF.F0KK2
(78.AAGAL.9KF)
CORSAIR BoxP/N:TWIN2X4096-8500C5DF
(CM2X2048-8500C5D)(EPP)
CRUCIAL BL12864AA106A.8FE5(EPP) 1024MB SS N/A Heat-Sink Package 5-5-5-15 2.0 • •
Crucial CT25664AA1067.16FE1 2048MB DS MICRON 9DE12D9JKH 1066-7-7-7-24 •
G.SKILL F2-8500CL5S-1GBPK 1024MB DS N/A Heat-Sink Package 5-5-5-15 2.0-2.1 •
G.SKILL F2-8500CL5D-2GBPK 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.0-2.1 •
GEIL GB22GB8500C5DC 2048MB(Kit of 2) SS GEIL GL2L128M88BA25AB 5-5-5-15 2.2-2.4 • •
GEIL GE22GB1066C5DC 2048MB(Kit of 2) SS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 • •
GEIL GE24GB1066C5QC 4096MB(Kitof4) SS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 • •
GEIL GB24GB8500C5DC 4096MB(Kit of 2) DS GEIL GL2L128M88BA25AB 5-5-5-15 2.2-2.4 •
GEIL GE24GB1066C5DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 •
GEIL GX24GB8500C5UDC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 • •
GEIL GB24GB8500C5QC 4096MB(Kitof4) DS GEIL GL2L128M88BA25AB 5-5-5-15 2.2-2.4 •
Hynix HYMP564U64FP8-G7 512MB SS HYNIX HY5PS12821FFP-G7 7 • • •
Hynix HYMP 512U64FP8-G7 1024MB DS HYNIX HY5PS12821FFP-G7 7-7-7-12 • •
KINGMAX KLED48F-B8KU6-NGES 1024MB SS KINGMAX KKB8FNUXF-DXX-18A 1066-6-6-6-24 • • •
KINGMAX KLED48F-A8KI5-EPA 1024MB DS KINGMAX KKA8FEIBF-HJK-18A • •
KINGMAX KLEE88F-B8KU6-NNAS 2048MB DS KINGMAX KKB8FNUXF-DXX-18A 1066-6-6-6-24 • • •
KINGSTON KHX8500D2K2/1GN(EPP) 1024MB(Kit of 2) SS N/A Heat-Sink Package 800-5-5-5-18 2.2 • • •
KINGSTON KHX8500D2/1G 1024MB SS N/A Heat-Sink Package 800-5-5-5-18 2.2 •
KINGSTON KHX8500D2K2/2GN(EPP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 800-5-5-5-18 2.2 •
KINGSTON KVR1066D2N7/1G 1024MB DS ELPIDA E5108AJBG-1J-E 1066-5-5-5-15 1.8 • •
KINGSTON KHX8500D2K2/2G 2048MB(Kit of 2) DS N/A Heat-Sink Package 2.2 • •
MICRON MT8HTF12864AY-1GAE1 1024MB SS MICRON D9JKH 7 • • •
MICRON MT16HTF25664AY-1GAE1 2048MB DS MICRON D9JKH 7 • •
OCZ OCZ2N10662GK(EPP) 2048MB(Kit of 2) DS Heat-Sink Package • •
OCZ OCZ2N1066SR2GK(EPP) 2048MB(Kit of 2) DS N/A Heat-Sink Package 5 2.10 • • •
OCZ OCZ2RPR10664GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5 2.2 •
SAMSUNG M378T2953GZ3-CF8 1024MB DS SAMSUNG K4T51083QG 7 • •
Transcend TX1066QLU-2GK 2048MB(Kit of 2) SS ELPIDA Heat-Sink Package 5 • •
Transcend TX1066QLU-4GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5 • •
BUFFALO FSX1066D2C-1G 1024MB DS N/A Heat-Sink Package 5-5-5-15(800-5-
BUFFALO FSX1066D2C-K4G 2048MB DS N/A Heat-Sink Package 5-5-5-15 •
Elixir M2Y2G64TU8HD5B-BD 2048MB DS Elixir N2TU16800E-BD 6(1066-6-6-6-24) • • •
Kingbox N/A 1024MB DS MICRON 7YDI2 1.8 • • •
Mushkin 996535 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-4-12 • •
Mushkin 996619 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.0-2.1 • •
UMAX D41002GP0-73BNJ1 4096MB(Kit of 2) DS N/A Heat-Sink Package 5(800-5-5-5-15) 2 •
2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.1 •
SS/DSChip
Brand
Chip NO.
Timing
Dimm(Bios)
5-5-15)
Voltage
DIMM socket
support (Optional)
A* B* C*
•
Chapter 1: Product introduction 1-11
DDR2-1066MHz capability (with AM2+ CPU)
Vendor Part No. Size
Apacer 78.AAGBD.9LZ 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 •
BoxP/N:CH.04GAF.F0KK2
Apacer
(78.AAGAL.9KF)
BoxP/N:TWIN2X4096-8500C5DF
CORSAIR
(CM2X2048-8500C5D)(EPP)
CRUCIAL BL12864AA106A.8FE5(EPP) 1024MB SS N/A Heat-Sink Package 5-5-5-15 2.0 • •
Crucial CT25664AA1067.16FE1 2048MB DS MICRON 9DE12D9JKH 1066-7-7-7-24 • •
G.SKILL F2-8500CL5S-1GBPK 1024MB DS N/A Heat-Sink Package 5-5-5-15 2.0-2.1 • •
G.SKILL F2-8500CL5D-2GBPK 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.0-2.1 • • •
G.SKILL F2-8500CL5D-4GBPK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.0-2.1 •
GEIL GB22GB8500C5DC 2048MB(Kit of 2) SS GEIL GL2L128M88BA25AB 5-5-5-15 2.2-2.4 • •
GEIL GE22GB1066C5DC 2048MB(Kit of 2) SS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 • •
GEIL GE24GB1066C5QC 4096MB(Kitof4) SS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 •
GEIL GB24GB8500C5DC 4096MB(Kit of 2) DS GEIL GL2L128M88BA25AB 5-5-5-15 2.2-2.4 • •
GEIL GE24GB1066C5DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 •
GEIL GX24GB8500C5UDC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.2-2.4 • •
GEIL GB24GB8500C5QC 4096MB(Kitof4) DS GEIL GL2L128M88BA25AB 5-5-5-15 2.2-2.4 • • •
Hynix HYMP564U64FP8-G7 512MB SS HYNIX HY5PS12821FFP-G7 7 •
Hynix HYMP 512U64FP8-G7 1024MB DS HYNIX HY5PS12821FFP-G7 7-7-7-12 • • •
KINGMAX KLED48F-B8KU6-NGES 1024MB SS KINGMAX KKB8FNUXF-DXX-18A 1066-6-6-6-24 • • •
KINGMAX KLED48F-A8KI5-EPA 1024MB DS KINGMAX KKA8FEIBF-HJK-18A • •
KINGMAX KLEE88F-B8KU6-NNAS 2048MB DS KINGMAX KKB8FNUXF-DXX-18A 1066-6-6-6-24 • • •
KINGSTON KHX8500D2K2/1GN(EPP) 1024MB(Kit of 2) SS N/A Heat-Sink Package 800-5-5-5-18 2.2 • •
KINGSTON KHX8500D2/1G 1024MB SS N/A Heat-Sink Package 800-5-5-5-18 2.2 • •
KINGSTON KHX8500D2K2/2GN(EPP) 2048MB(Kit of 2) SS N/A Heat-Sink Package 800-5-5-5-18 2.2 • • •
KINGSTON KVR1066D2N7/1G 1024MB DS ELPIDA E5108AJBG-1J-E 1066-5-5-5-15 1.8 • •
KINGSTON KHX8500D2K2/2G 2048MB(Kit of 2) DS N/A Heat-Sink Package 2.2 • • •
MICRON MT8HTF12864AY-1GAE1 1024MB SS MICRON D9JKH 7 •
MICRON MT16HTF25664AY-1GAE1 2048MB DS MICRON D9JKH 7 • • •
OCZ OCZ2N10662GK(EPP) 2048MB(Kit of 2) DS Heat-Sink Package • • •
OCZ OCZ2N1066SR2GK(EPP) 2048MB(Kit of 2) DS N/A Heat-Sink Package 5 2.10 • • •
OCZ OCZ2RPR10664GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5 2.2 • •
OCZ OCZ2RPR10664GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5(1066-5-5-5-15) 2.2 • •
SAMSUNG M378T2953GZ3-CF8 1024MB DS SAMSUNG K4T51083QG 7 • • •
Transcend TX1066QLU-2GK 2048MB(Kit of 2) SS ELPIDA Heat-Sink Package 5 • •
Transcend TX1066QLU-4GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5 • •
BUFFALO FSX1066D2C-1G 1024MB DS N/A Heat-Sink Package 5-5-5-15(800-5-5-5-15) • •
BUFFALO FSX1066D2C-K4G 2048MB DS N/A Heat-Sink Package 5-5-5-15 • •
Elixir M2Y2G64TU8HD5B-BD 2048MB DS Elixir N2TU16800E-BD 6(1066-6-6-6-24) • • •
Kingbox N/A 1024MB DS MICRON 7YDI2 1.8 • •
Mushkin 996535 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-4-12 •
Mushkin 996612 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.1 •
Mushkin 996619 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.0-2.1 •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 2.1 •
SS/DSChip
Brand
Chip NO.
Timing
Dimm(Bios)
Voltage
DIMM socket
support (Optional)
A* B* C*
DDR2-800MHz capability (with AM3 CPU)
Vendor Part No. Size
Apacer 78.91G9I.9K5 512MB SS APACER AM4B5708JQJS8E 5 • • •
Apacer 78.01GA0.9K5 1024MB SS APACER AM4B5808CQJS8E 5 • • •
Apacer 78.01GA0.9L5 1024MB SS Apacer AM4B5808FEWS8E 5(800-5-5-5-18) • •
Apacer 78.A1GA0.9K4 2048MB DS APACER AM4B5808CQJS8E 5 • •
Apacer 78.A1GA0.9L4 2048MB DS Apacer AM4B5808FEWS8E 5(800-5-5-5-18) • •
CORSAIR CM2X1024-6400C4 1024MB DS N/A Heat-Sink Package 4 1.9 • • •
BoxP/N:TWIN2X4096-6400C4DHX
CORSAIR
(CM2X2048-6400C4DHX)Ver1.1
BoxP/N:TWIN2X4096-6400C5
CORSAIR
(CM2X2048-6400C5)Ver3.1
BoxP/N:TWIN2X4096-6400C5DHX
CORSAIR
(CM2X2048-6400C5DHX)Ver4.1
Crucial BL12864AA80A.8FE5(EPP) 1024MB SS N/A Heat-Sink Package 4-4-4-12 2.0 • •
Crucial BL25664AA80A.16FE5(EPP) 2048MB DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
Crucial CT25664AA800.16FG 2048MB DS MICRON 8ZC27D9JWB 6(6-6-6-18) • •
G.SKILL F2-6400CL5D-1GBNQ 1024MB(Kit of 2) SS N/A Heat-Sink Package 5-5-5-15 1.8-2.0 • • •
G.SKILL F2-6400CL4D-2GBPK 1024MB DS Heat-Sink Package 4 • • •
G.SKILL F2-6400CL5D-2GBNQ 1024MB DS Heat-Sink Package 5 •
G.SKILL F2-6400PHU2-2GBNR 1024MB DS Heat-Sink Package 5 •
4096MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.10 •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-18 1.80 • •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-18 1.80 • • •
SS/DSChip
Brand
Chip NO.
Timing
Dimm(Bios)
1-12 ASUS M4A785G HTPC Series
Voltage
DIMM socket
support (Optional)
A* B* C*
DDR2-800MHz capability (with AM3 CPU) (continued)
Vendor Part No. Size
G.SKILL F2-6400CL4D-4GBPK 4096MB(Kit of 2) DS N/A Heat-Sink Package 4 2.0-2.1 • •
G.SKILL F2-6400CL5D-4GBPQ 4096MB(Kit of 2) DS N/A Heat-Sink Package 5 1.8-1.9 • • •
G.SKILL F2-6400CL6D-4GBMQ 4096MB(Kit of 2) DS N/A Heat-Sink Package 6 1.8-1.9 • •
G.SKILL F2-6400CL6D-8GBMQ 8192MB(Kit of 2) DS N/A Heat-Sink Package 6-6-6-18 1.8 • • •
GEIL GB22GB6400C4DC 2048MB(Kit of 2) DS GEIL GL2L64M088BA30EB 4-4-4-12 2.0 •
GEIL GB22GB6400C5DC 2048MB(Kit of 2) DS GEIL GL2L64M088BA30EB 5-5-5-15 1.8 • •
GEIL GE22GB800C4DC 2048MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
GEIL GE22GB800C5DC 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
GEIL GX22GB6400DC 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
GEIL GX22GB6400UDC 2048MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.1 • • •
GEIL GX22GB6400C4USC 2048MB DS N/A Heat-Sink Package • • •
GEIL GX22GB6400LX 2048MB DS N/A Heat-Sink Package 5-5-5-15 • •
GEIL GB24GB6400C4DC 4096MB(Kit of 2) DS GEIL GL2L128M88BA25AB 4-4-4-12 2.0 • •
GEIL GB24GB6400C5DC 4096MB(Kit of 2) DS GEIL GL2L128M88BA25AB 5-5-5-15 1.8 • •
GEIL GB24GB6400C5QC 4096MB(Kit of 2) DS GEIL GL2L64M088BA30EB 5-5-5-15 1.8 • • •
GEIL GE24GB800C4DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
GEIL GE24GB800C5DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
GEIL GX24GB6400DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 • •
GEIL GB24GB6400C4QC 4096MB(Kitof4) DS GEIL GL2L64M088BA30EB 4-4-4-12 2.0 • • •
GEIL GE24GB800C4QC 4096MB(Kitof4) DS N/A Heat-Sink Package 4-4-4-12 2.0 • •
GEIL GE24GB800C5QC 4096MB(Kitof4) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
GEIL GB28GB6400C4QC 8192MB(Kitof4) DS GEIL GL2L128M88BA25AB 4-4-4-12 2.0 • •
GEIL GB28GB6400C5QC 8192MB(Kitof4) DS GEIL GL2L128M88BA25AB 5-5-5-15 1.8 • • •
GEIL GE28GB800C4QC 8192MB(Kitof4) DS N/A Heat-Sink Package 4-4-4-12 2.0 • •
GEIL GE28GB800C5QC 8192MB(Kitof4) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
Hynix HYMP564U64CP8-S5 512MB SS HYNIX HY5PS12821CFP-S5 5 1.8 • • •
Hynix HYMP112U64CP8-S6 1024MB SS HYNIX HY5PS1G831CFP-S6 6 • •
Hynix HYMP 512U64CP8-S5 1024MB DS HY5PS12821CFP-S5 5 • • •
KINGMAX KLDD48F-B8KU5 1024MB SS KINGMAX KKB8FNUBF 5-5-5-18 • •
KINGMAX KLDE88F-B8KU5 2048MB DS KINGMAX KKB8FNUBF 5-5-5-18 • • •
KINGSTON KVR800D2N5/ 512 512MB SS ELPIDA E5108AJBG-8E-E 1.8 • • •
KINGSTON KVR800D2N6/ 512 512MB SS KINGSTON D6408TR7CGL25U 800-6-6-6-18 1.8 • •
KINGSTON KVR800D2N5/1G 1024MB SS KINGSTON D1288TEFCGL25U 800-5-5-5-18 1.8 • • •
KINGSTON KVR800D2N5/1G 1024MB SS KINGSTON D1288TPFCGL25U 800-5-5-5-15 1.8 • • •
KINGSTON KVR800D2N6/1G 1024MB DS KINGSTON D6408TR7CGL25U 800-6-6-6-18 1.8 • • •
KINGSTON KHX6400D2/2G 2048MB DS N/A Heat-Sink Package 2.0 • • •
KINGSTON KVR800D2N5/2G 2048MB DS KINGSTON D1288TEFCGL25U 800-5-5-5-18 1.8 • • •
KINGSTON KVR800D2N6/4G 4096MB DS ELPIDA E2108ABSE-8G-E 6(800-6-6-6-18) 1.8 • • •
MICRON MT16HTF25664AY-800G1 2048MB DS MICRON 8ZC27D9JWB 6(800-6-6-6-18) • • •
NANYA NT 512T64U88B0BY-25C 512MB SS NT5TU64M8BE-25C 5 • • •
NANYA NT1GT64U8HB0BY-25C 1024MB DS NT5TU64M8BE-25C 5 • • •
NANYA NT1GT64U8HCOBY-25D 1024MB DS NANYA NT5TU64M8CE-25D • • •
NANYA NT2GT64U8HC0BY-AC 2048MB DS NANYA NT5TU128M8CE-AC 5 • •
OCZ OCZ2G8001G 1024MB DS N/A Heat-Sink Package 5 1.8 • • •
OCZ OCZ2T8002GK(EPP) 1024MB DS N/A Heat-Sink Package 5 1.8 •
OCZ OCZ2FX800C32GK 2048MB(Kit of 2) DS N/A Heat-Sink Package 3-4-4(800-5-5-5-15) 2.35 • • •
OCZ OCZ2P8004GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-4-4 1.8 • • •
OCZ OCZ2G8008GK 8192MB(Kit of 2) DS N/A Heat-Sink Package 5 1.80 • • •
OCZ OCZ2VU80016GQ 8192MB(Kit of 2) DS N/A Heat-Sink Package 5-6-6(800-5-5-5-15) 1.8 • • •
PSC AL7E8G73F-8E1 1024MB SS PSC P3R1GE3FGF850MAC19 5(800-5-5-5-18) • • •
PSC AL8E8F73C-8E1 2048MB DS PSC A3R1GE3CFF734MAA0E 5 • • •
PSC AL8E8G73F-8E1 2048MB DS PSC P3R1GE3FGF850MAC19 5(800-5-5-5-18) • • •
SAMSUNG M378T6553GZS-CF7 512MB SS SAMSUNG K4T51083QG 6 • • •
SAMSUNG M378T2863QZS-CF7 1024MB SS SAMSUNG K4T1G084QQ 6 • • •
SAMSUNG M391T2863QZ3-CF7 1024MB SS SAMSUNG K4T1G084QQ(ECC) 6 • •
SAMSUNG M378T2953GZ3-CF7 1024MB DS SAMSUNG K4T51083QG 6 • • •
SAMSUNG M378T5663QZ3-CF7 2048MB DS SAMSUNG K4T1G084QQ(ECC) 6 • • •
SAMSUNG M391T5663QZ3-CF7 2048MB DS SAMSUNG K4T1G084QQ 6 • • •
SAMSUNG M378T5263AZ3-CF7 4096MB DS SAMSUNG K4T2G084QA-HCF7 6 • • •
Super
T800UA12C4 512MB SS Heat-Sink Package • •
Talent
Super
T800UB1GC4 1024MB DS Heat-Sink Package • • •
Talent
Transcend JM800QLU-1G 1024MB SS Transcend TQ243ECF8 5 • •
Transcend TS128MLQ64V8U 1024MB SS ELPIDA E1108ACBG-8E-E 5 • • •
Transcend JM800QLU-2G 2048MB DS Transcend TQ243PCF8 5 • •
SS/DSChip
Brand
Chip NO.
Timing
Dimm(Bios)
Voltage
DIMM socket
support (Optional)
A* B* C*
Chapter 1: Product introduction 1-13
DDR2-800MHz capability (with AM3 CPU) (continued)
Vendor Part No. Size
Transcend TS256MLQ64V8U 2048MB DS ELPIDA E1108ACBG-8E-E 5 • • •
Transcend TS256MLQ72V8U 2048MB DS ELPIDA E1108ACBG-8E-E(ECC) 5 • • •
Asint SLY2128M8-JGE 1024MB SS Asint DDRII1208-GE • • •
Asint SLZ2128M8-JGE 2048MB DS Asint DDRII1208-GE • • •
CENTURY 28V2H8 512MB SS HYNIX HY5PS12821BFP-S5 •
CENTURY 28VOH8 1024MB DS HYNIX HY5PS12821BFP-S5 • •
Elixir M2Y1G64TU88D4B-AC 1024MB SS Elixir N2TU1G80DE-AC 5 • • •
Elixir M2Y1G64TU8HB0B-25C 1024MB DS Elixir N2TU 51280BE-25C 5 1.8 • •
Elixir M2Y2G64TU8HD4B-AC 2048MB DS Elixir N2TU1G80DE-AC 5 • • •
Kingbox N/A 2048MB DS Kingbox EPD2128082200E-3 800-5-5-5-15 • • •
Kingbox N/A 2048MB DS MICRON D9HNL •
Kingbox N/A 2048MB DS KINGBOX EPD2128082200E-3 • •
Mushkin XP2-6400 1024MB SS Heat-Sink Package 4 • • •
Oci 04701G16CZ5D2A 1024MB DS Jnnity 64M8PC6400 5 • • •
Patriot PSD2 51280081 512MB SS PATRIOT PM64M8D2BU-25EC • • •
Patriot PSD21G8002 1024MB DS PATRIOT PM64M8D2BU-25PAC 5 • •
Patriot PSD22GB002 2048MB DS PATRIOT PM128M8D2BU-25KC 5 • • •
Patriot PDC24G6400LLK 4096MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.2 • • •
Silicon
SP001GBLRU800S02 1024MB SS S-POWER 10YR9N3 5(5-5-5-15) • • •
Power
Silicon
SP002GBLRU800S02 2048MB DS S-POWER 10YR9N3 5(5-5-5-15) • • •
Power
UMAX D48002GP1-73BEB 2048MB DS UMAX U2S24D30TP-8E 800-5-5-5-15 • •
SS/DSChip
Brand
Chip NO.
Timing
Dimm(Bios)
Voltage
DIMM socket
support (Optional)
A* B* C*
DDR2-800MHz capability (with AM2+ CPU)
Vendor Part No. Size
Apacer 78.91G9I.9K5 512MB SS APACER AM4B5708JQJS8E 5 • • •
Apacer 78.01GA0.9K5 1024MB SS APACER AM4B5808CQJS8E 5 • • •
Apacer 78.01GA0.9L5 1024MB SS Apacer AM4B5808FEWS8E 5(800-5-5-5-18) • • •
Apacer 78.A1GA0.9K4 2048MB DS APACER AM4B5808CQJS8E 5 • •
Apacer 78.A1GA0.9L4 2048MB DS Apacer AM4B5808FEWS8E 5(800-5-5-5-18) •
CORSAIR CM2X1024-6400C4 1024MB DS N/A Heat-Sink Package 4 1.9 • • •
BoxP/N:TWIN2X4096-6400C4DHX
CORSAIR
(CM2X2048-6400C4DHX)Ver1.1
BoxP/N:TWIN2X4096-6400C5
CORSAIR
(CM2X2048-6400C5)Ver3.1
BoxP/N:TWIN2X4096-6400C5DHX
CORSAIR
(CM2X2048-6400C5DHX)Ver4.1
Crucial BL12864AA80A.8FE5(EPP) 1024MB SS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
Crucial BL25664AA80A.16FE5(EPP) 2048MB DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
Crucial CT25664AA800.16FG 2048MB DS MICRON 8ZC27D9JWB 6(6-6-6-18) • •
G.SKILL F2-6400CL5D-1GBNQ 1024MB(Kit of 2) SS N/A Heat-Sink Package 5-5-5-15 1.8-2.0 • • •
G.SKILL F2-6400CL4D-2GBPK 1024MB DS Heat-Sink Package 4 • • •
G.SKILL F2-6400CL5D-2GBNQ 1024MB DS Heat-Sink Package 5 •
G.SKILL F2-6400PHU2-2GBNR 1024MB DS Heat-Sink Package 5 •
G.SKILL F2-6400CL4D-4GBPK 4096MB(Kit of 2) DS N/A Heat-Sink Package 4 2.0-2.1 • •
G.SKILL F2-6400CL5D-4GBPQ 4096MB(Kit of 2) DS N/A Heat-Sink Package 5 1.8-1.9 • •
G.SKILL F2-6400CL6D-4GBMQ 4096MB(Kit of 2) DS N/A Heat-Sink Package 6 1.8-1.9 • •
G.SKILL F2-6400CL6D-8GBMQ 8192MB(Kit of 2) DS N/A Heat-Sink Package 6-6-6-18 1.8 • • •
GEIL GB22GB6400C4DC 2048MB(Kit of 2) DS GEIL GL2L64M088BA30EB 4-4-4-12 2.0 • • •
GEIL GB22GB6400C5DC 2048MB(Kit of 2) DS GEIL GL2L64M088BA30EB 5-5-5-15 1.8 • • •
GEIL GE22GB800C4DC 2048MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
GEIL GE22GB800C5DC 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
GEIL GX22GB6400DC 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
GEIL GX22GB6400UDC 2048MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.1 • • •
GEIL GX22GB6400C4USC 2048MB DS N/A Heat-Sink Package • • •
GEIL GX22GB6400LX 2048MB DS N/A Heat-Sink Package 5-5-5-15 • •
GEIL GB24GB6400C4DC 4096MB(Kit of 2) DS GEIL GL2L128M88BA25AB 4-4-4-12 2.0 • •
GEIL GB24GB6400C5DC 4096MB(Kit of 2) DS GEIL GL2L128M88BA25AB 5-5-5-15 1.8 • • •
GEIL GB24GB6400C5QC 4096MB(Kit of 2) DS GEIL GL2L64M088BA30EB 5-5-5-15 1.8 • • •
GEIL GE24GB800C4DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
GEIL GE24GB800C5DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
GEIL GX24GB6400DC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 •
GEIL GB24GB6400C4QC 4096MB(Kitof4) DS GEIL GL2L64M088BA30EB 4-4-4-12 2.0 • •
GEIL GE24GB800C4QC 4096MB(Kitof4) DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
GEIL GE24GB800C5QC 4096MB(Kitof4) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
4096MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.10 •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-18 1.80 • •
4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-18 1.80 • •
SS/DSChip
Brand
Chip NO.
Timing
Dimm(Bios)
Voltage
DIMM socket
support (Optional)
A* B* C*
1-14 ASUS M4A785G HTPC Series
DDR2-800MHz capability (with AM2+ CPU) (continued)
Vendor Part No. Size
GEIL GB28GB6400C4QC 8192MB(Kitof4) DS GEIL GL2L128M88BA25AB 4-4-4-12 2.0 • • •
GEIL GB28GB6400C5QC 8192MB(Kitof4) DS GEIL GL2L128M88BA25AB 5-5-5-15 1.8 • • •
GEIL GE28GB800C4QC 8192MB(Kitof4) DS N/A Heat-Sink Package 4-4-4-12 2.0 • • •
GEIL GE28GB800C5QC 8192MB(Kitof4) DS N/A Heat-Sink Package 5-5-5-15 1.8 • • •
Hynix HYMP564U64CP8-S5 512MB SS HYNIX HY5PS12821CFP-S5 5 1.8 • • •
Hynix HYMP112U64CP8-S6 1024MB SS HYNIX HY5PS1G831CFP-S6 6 • • •
Hynix HYMP 512U64CP8-S5 1024MB DS HY5PS12821CFP-S5 5 • • •
KINGMAX KLDD48F-B8KU5 1024MB SS KINGMAX KKB8FNUBF 5-5-5-18 • • •
KINGMAX KLDE88F-B8KU5 2048MB DS KINGMAX KKB8FNUBF 5-5-5-18 • • •
KINGSTON KVR800D2N5/ 512 512MB SS ELPIDA E5108AJBG-8E-E 1.8 • • •
KINGSTON KVR800D2N6/ 512 512MB SS KINGSTON D6408TR7CGL25U 800-6-6-6-18 1.8 • • •
KINGSTON KVR800D2N5/1G 1024MB SS KINGSTON D1288TEFCGL25U 800-5-5-5-18 1.8 • •
KINGSTON KVR800D2N5/1G 1024MB SS KINGSTON D1288TPFCGL25U 800-5-5-5-15 1.8 • •
KINGSTON KVR800D2N6/1G 1024MB DS KINGSTON D6408TR7CGL25U 800-6-6-6-18 1.8 • •
KINGSTON KHX6400D2LLK2/2GN(EPP) 2048MB(Kit of 2) DS N/A Heat-Sink Package •
KINGSTON KHX6400D2/2G 2048MB DS N/A Heat-Sink Package 2.0 • •
KINGSTON KVR800D2N5/2G 2048MB DS KINGSTON D1288TEFCGL25U 800-5-5-5-18 1.8 • • •
KINGSTON KVR800D2N6/4G 4096MB DS ELPIDA E2108ABSE-8G-E 6(800-6-6-6-18) 1.8 • • •
MICRON MT16HTF25664AY-800G1 2048MB DS MICRON 8ZC27D9JWB 6(800-6-6-6-18) • •
NANYA NT 512T64U88B0BY-25C 512MB SS NT5TU64M8BE-25C 5 •
NANYA NT1GT64U8HB0BY-25C 1024MB DS NT5TU64M8BE-25C 5 • •
NANYA NT1GT64U8HCOBY-25D 1024MB DS NANYA NT5TU64M8CE-25D • •
NANYA NT2GT64U8HC0BY-AC 2048MB DS NANYA NT5TU128M8CE-AC 5 • •
OCZ OCZ2G8001G 1024MB DS N/A Heat-Sink Package 5 1.8 • • •
OCZ OCZ2T8002GK(EPP) 1024MB DS N/A Heat-Sink Package 5 1.8 • • •
OCZ OCZ2FX800C32GK 2048MB(Kit of 2) DS N/A Heat-Sink Package 3-4-4(800-5-5-5-15) 2.35 • • •
OCZ OCZ2P800R22GK 2048MB(Kit of 2) DS N/A Heat-Sink Package 4 1.8 •
OCZ OCZ2P8004GK 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-4-4 1.8 • • •
OCZ OCZ2G8008GK 8192MB(Kit of 2) DS N/A Heat-Sink Package 5 1.80 • •
OCZ OCZ2VU80016GQ 8192MB(Kit of 2) DS N/A Heat-Sink Package 5-6-6(800-5-5-5-15) 1.8 • •
PSC AL7E8G73F-8E1 1024MB SS PSC P3R1GE3FGF850MAC19 5(800-5-5-5-18) • •
PSC AL8E8F73C-8E1 2048MB DS PSC A3R1GE3CFF734MAA0E 5 • • •
PSC AL8E8G73F-8E1 2048MB DS PSC P3R1GE3FGF850MAC19 5(800-5-5-5-18) • • •
SAMSUNG M378T6553GZS-CF7 512MB SS SAMSUNG K4T51083QG 6 •
SAMSUNG M378T2863QZS-CF7 1024MB SS SAMSUNG K4T1G084QQ 6 • • •
SAMSUNG M391T2863QZ3-CF7 1024MB SS SAMSUNG K4T1G084QQ(ECC) 6 • •
SAMSUNG M378T2953GZ3-CF7 1024MB DS SAMSUNG K4T51083QG 6 • • •
SAMSUNG M378T5663QZ3-CF7 2048MB DS SAMSUNG K4T1G084QQ(ECC) 6 • • •
SAMSUNG M391T5663QZ3-CF7 2048MB DS SAMSUNG K4T1G084QQ 6 • • •
SAMSUNG M378T5263AZ3-CF7 4096MB DS SAMSUNG K4T2G084QA-HCF7 6 • • •
Super Talent T800UA12C4 512MB SS Heat-Sink Package • •
Super Talent T800UB1GC4 1024MB DS Heat-Sink Package • •
Transcend JM800QLU-1G 1024MB SS Transcend TQ243ECF8 5 •
Transcend TS128MLQ64V8U 1024MB SS ELPIDA E1108ACBG-8E-E 5 • •
Transcend JM800QLU-2G 2048MB DS Transcend TQ243PCF8 5 • •
Transcend TS256MLQ64V8U 2048MB DS ELPIDA E1108ACBG-8E-E 5 • •
Transcend TS256MLQ72V8U 2048MB DS ELPIDA E1108ACBG-8E-E(ECC) 5 • • •
Asint SLY2128M8-JGE 1024MB SS Asint DDRII1208-GE • • •
Asint SLZ2128M8-JGE 2048MB DS Asint DDRII1208-GE • • •
CENTURY 28V2H8 512MB SS HYNIX HY5PS12821BFP-S5 •
CENTURY 28VOH8 1024MB DS HYNIX HY5PS12821BFP-S5 • • •
Elixir M2Y1G64TU88D4B-AC 1024MB SS Elixir N2TU1G80DE-AC 5 • •
Elixir M2Y1G64TU8HB0B-25C 1024MB DS Elixir N2TU 51280BE-25C 5 1.8 • •
Elixir M2Y2G64TU8HD4B-AC 2048MB DS Elixir N2TU1G80DE-AC 5 • •
Kingbox N/A 2048MB DS Kingbox EPD2128082200E-3 800-5-5-5-15 • • •
Kingbox N/A 2048MB DS MICRON D9HNL • •
Kingbox N/A 2048MB DS KINGBOX EPD2128082200E-3 • •
Mushkin XP2-6400 1024MB SS Heat-Sink Package 4 • • •
Oci 04701G16CZ5D2A 1024MB DS Jnnity 64M8PC6400 5 • •
Patriot PSD2 51280081 512MB SS PATRIOT PM64M8D2BU-25EC • • •
Patriot PSD21G8002 1024MB DS PATRIOT PM64M8D2BU-25PAC 5 • • •
Patriot PSD22GB002 2048MB DS PATRIOT PM128M8D2BU-25KC 5 • • •
Patriot PDC24G6400LLK 4096MB(Kit of 2) DS N/A Heat-Sink Package 4-4-4-12 2.2 • • •
Silicon
SP001GBLRU800S02 1024MB SS S-POWER 10YR9N3 5(5-5-5-15) • • •
Power
Silicon
SP002GBLRU800S02 2048MB DS S-POWER 10YR9N3 5(5-5-5-15) • • •
Power
UMAX D48002GP1-73BEB 2048MB DS UMAX U2S24D30TP-8E 800-5-5-5-15 • •
SS/DSChip
Brand
Chip NO.
Timing
Dimm(Bios)
Voltage
DIMM socket
support (Optional)
A* B* C*
Chapter 1: Product introduction 1-15
DDR2-667MHz capability (with AM3 CPU)
Vendor Part No. Size
Apacer 78.91G92.9K5 512MB SS APACER AM4B5708JQJS7E 5 •
Apacer 78.01G9O.9K5 1024MB SS APACER AM4B5808CQJS7E 5 • • •
Apacer 78.A1G9O.9K4 2048MB DS APACER AM4B5808CQJS7E 5 • •
CORSAIR VS 512MB667D2 512MB SS N/A 64M8CFEG N/A N/A • • •
CORSAIR VS1GB667D2 1024MB DS N/A 64M8CFEG N/A N/A • •
ELPIDA EBE51UD8AEFA-6E-E 512MB SS ELPIDA E5108AE-6E-E 5 1.7-1.9 • • •
G.SKILL F2-5400PHU2-2GBNT 2048MB(Kit of 2) DS G.Skill D264M8GCF 5-5-5-15 1.8 •
G.SKILL F2-5300CL5D-4GBMQ 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8-1.9 • • •
GEIL GX21GB5300SX 1024MB DS N/A Heat-Sink Package • • •
GEIL GX22GB5300LX 2048MB DS N/A Heat-Sink Package 5-5-5-15 • •
GEIL GX24GB5300LDC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 •
Hynix HYMP112U64CP8-Y5 1024MB SS HYNIX HY5PS1G831CFP-Y5 5 • • •
Hynix HYMP 512U64CP8-Y5 1024MB DS HYNIX HY5PS12821CFP-Y5 5 1.8 • •
KINGSTON KVR667D2N5/ 512 512MB SS ELPIDA E5108AJBG-6E-E 5(5-5-5-15) 1.8 • • •
KINGSTON KVR667D2E5/1G 1024MB SS ELPIDA E1108AEBG-8E-E 5(5-5-5-15) 1.8 • •
KINGSTON KVR667D2N5/1G 1024MB SS ELPIDA E1108AEBG-8E-F 5(5-5-5-15) 1.8 • •
KINGSTON KVR667D2N5/2G 2048MB SS SAMSUNG K4T1G084QE 667-5-5-5-15 1.8 • • •
KINGSTON KVR667/D2N5/1G 1024MB DS ELPIDA E5108AJBG-6E-E 667-5-5-5-15 1.8 • • •
KINGSTON KVR667D2E5/2G 2048MB DS MICRON D9HNL(ECC) 1.8 • • •
KINGSTON KVR667D2N5/2G 2048MB DS KINGSTON D1288TPFCGL25U 667-5-5-5-15 1.8 •
NANYA NT 512T64U88B0BY-3C 512MB SS NANYA NT5TU64M8BE-3C 5 1.8 • • •
NANYA NT2GT64U8HB0JY-3C 2048MB DS NT5TU128M8BJ-3C 5 • •
OCZ OCZ26671024V 1024MB SS Ramos RC1GT084CA0-53EC 5 1.8 • • •
SAMSUNG M378T5263AZ3-CE6 4096MB DS SAMSUNG K4T2G084QA-HCE6 5 • •
Super Talent T6UA 512C5 512MB SS N/A Heat-Sink Package 5 1.8 • • •
Super Talent T6UB1GC5 1024MB DS N/A Heat-Sink Package 5 1.8 • •
Asint SLX264M8-J6E 512MB SS Asint DDRII6408-6E • • •
Asint SLY2128M8-J6E 1024MB SS Asint DDRII1208-6E • • •
CENTURY 26VOH8 1024MB DS HYNIX HY5PS12821CFP-Y5 5 1.85 •
Dynet DNHM5U 512C8FE-A6 512MB SS Dynet DN5HS82CFE-A6 •
Kingbox N/A 1024MB SS KINGBOX EPD2128082200E-4 • • •
Kingbox N/A 1024MB DS KINGBOX EPD264082200E-4 1.8 • •
Kingbox N/A 1024MB DS KINGBOX EPD264082200N-4 • •
MDT M 512-667-8 512MB SS MDT 18D 51280D-30648 4 1.8 •
MDT M924-667-16A 1024MB DS MDT 18D 51200D-30646 4 1.8 •
Patriot PSD21G6672 1024MB DS PATRIOT PM64M8D2BU-3PAC 5 •
SS/DSChip
Brand
Chip NO.
Timing
Lable(Bios)
Voltage
DIMM socket
support (Optional)
A* B* C*
1-16 ASUS M4A785G HTPC Series
DDR2-667MHz capability (with AM2+ CPU)
Vendor Part No. Size
Apacer 78.91G92.9K5 512MB SS APACER AM4B5708JQJS7E 5 • • •
Apacer 78.01G9O.9K5 1024MB SS APACER AM4B5808CQJS7E 5 •
Apacer 78.A1G9O.9K4 2048MB DS APACER AM4B5808CQJS7E 5 •
CORSAIR VS 512MB667D2 512MB SS N/A 64M8CFEG N/A N/A • • •
CORSAIR VS1GB667D2 1024MB DS N/A 64M8CFEG N/A N/A •
ELPIDA EBE51UD8AEFA-6E-E 512MB SS ELPIDA E5108AE-6E-E 5 1.7-1.9 • •
G.SKILL F2-5400PHU2-2GBNT 2048MB(Kit of 2) DS G.Skill D264M8GCF 5-5-5-15 1.8 •
G.SKILL F2-5300CL5D-4GBMQ 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8-1.9 • • •
GEIL GX21GB5300SX 1024MB DS N/A Heat-Sink Package • •
GEIL GX24GB5300LDC 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 1.8 •
Hynix HYMP112U64CP8-Y5 1024MB SS HYNIX HY5PS1G831CFP-Y5 5 • • •
Hynix HYMP 512U64CP8-Y5 1024MB DS HYNIX HY5PS12821CFP-Y5 5 1.8 • • •
KINGSTON KVR667D2N5/ 512 512MB SS ELPIDA E5108AJBG-6E-E 5(5-5-5-15) 1.8 • •
KINGSTON KVR667D2E5/1G 1024MB SS ELPIDA E1108AEBG-8E-E 5(5-5-5-15) 1.8 • •
KINGSTON KVR667D2N5/1G 1024MB SS ELPIDA E1108AEBG-8E-F 5(5-5-5-15) 1.8 •
KINGSTON KVR667D2N5/2G 2048MB SS SAMSUNG K4T1G084QE 667-5-5-5-15 1.8 • • •
KINGSTON KVR667/D2N5/1G 1024MB DS ELPIDA E5108AJBG-6E-E 667-5-5-5-15 1.8 • •
KINGSTON KVR667D2E5/2G 2048MB DS MICRON D9HNL(ECC) 1.8 • • •
KINGSTON KVR667D2N5/2G 2048MB DS KINGSTON D1288TPFCGL25U 667-5-5-5-15 1.8 •
NANYA NT 512T64U88B0BY-3C 512MB SS NANYA NT5TU64M8BE-3C 5 1.8 • • •
NANYA NT2GT64U8HB0JY-3C 2048MB DS NT5TU128M8BJ-3C 5 • •
OCZ OCZ26671024V 1024MB SS Ramos RC1GT084CA0-53EC 5 1.8 • •
SAMSUNG M378T5263AZ3-CE6 4096MB DS SAMSUNG K4T2G084QA-HCE6 5 •
Super Talent T6UA 512C5 512MB SS N/A Heat-Sink Package 5 1.8 • •
Asint SLX264M8-J6E 512MB SS Asint DDRII6408-6E • • •
Asint SLY2128M8-J6E 1024MB SS Asint DDRII1208-6E • •
Dynet DNHM5U 512C8FE-A6 512MB SS Dynet DN5HS82CFE-A6 •
Kingbox N/A 1024MB SS KINGBOX EPD2128082200E-4 • •
Kingbox N/A 1024MB DS KINGBOX EPD264082200E-4 1.8 •
Kingbox N/A 1024MB DS KINGBOX EPD264082200N-4 •
MDT M 512-667-8 512MB SS MDT 18D 51280D-30648 4 1.8 •
MDT M924-667-16A 1024MB DS MDT 18D 51200D-30646 4 1.8 •
Patriot PSD21G6672 1024MB DS PATRIOT PM64M8D2BU-3PAC 5 • •
SS/DSChip
Brand
Chip NO.
Timing
Lable(Bios)
Voltage
DIMM socket
support (Optional)
A* B* C*
Side(s): SS - Single-sided DS - Double-sided
DIMM support:
• A*: Supports one module inserted into either slot as Single-channel memory
conguration.
• B*: Supports two modules inserted into either the yellow slots or the black slots as one
pair of Dual-channel memory conguration.
• C*: Supports four modules inserted into both the yellow slots and the black slots as two
pairs of Dual-channel memory conguration.
Visit the ASUS website for the latest QVL.
Chapter 1: Product introduction 1-17
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. Press the retaining clips outward to
unlock a DDR2 DIMM socket.
2. Align a DIMM on the socket such that
the notch on the DIMM matches the
break on the socket.
Unlocked retaining clip
A DDR2 DIMM is keyed with a notch so that it ts in only one direction. DO NOT force a
DIMM into a socket to avoid damaging the DIMM.
1
3. Firmly insert the DIMM into the socket
until the retaining clips snap back in
place and the DIMM is properly seated.
Locked Retaining Clip
1.7.4 Removing a DIMM
To remove a DIMM:
1. Simultaneously press the retaining clips
outward to unlock the DIMM.
Support the DIMM lightly with your
ngers when pressing the retaining
clips. The DIMM might get damaged
when it ips out with extra force.
2
DDR2 DIMM notch
1
3
2
1
1
2. Remove the DIMM from the socket.
1-18 ASUS M4A785G HTPC Series
DDR2 DIMM notch
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 and damage motherboard components.
1.8.1 Installing an expansion card
To install an expansion card:
1. Before installing the expansion card, read the documentation that came with it and
make the necessary hardware settings for the card.
2. Remove the system unit cover (if your motherboard is already installed in a chassis).
3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.
4. Align the card connector with the slot and press rmly until the card is completely
seated on the slot.
5. Secure the card to the chassis with the screw you removed earlier.
6. Replace the system cover.
1.8.2 Conguring an expansion card
After installing the expansion card, congure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2. Assign an IRQ to the card.
3. Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
1.8.3 PCI slot
The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specications.
1.8.4 PCI Express x1 slots
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
1.8.5 PCI Express 2.0 x16 slot
This motherboard supports a PCI Express 2.0 x16 graphics card that complies with the PCI
Express specications.
Chapter 1: Product introduction 1-19
1.9 Jumpers
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 data in
CMOS, which include system setup information such as system passwords.
To erase the RTC RAM
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5~10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter
data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper again
to clear the CMOS RTC RAM data. After the CMOS clearance, reinstall the battery.
• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Shut
down and reboot the system so the BIOS can automatically reset parameter settings to
default values.
• Due to the chipset behavior, AC power off is required to enable C.P.R. function. You
must turn off and on the power supply or unplug and plug the power cord before
rebooting the system.
1-20 ASUS M4A785G HTPC Series
1.10 Connectors
1.10.1 Rear panel connectors
1. Optical S/PDIF Out port. This port connects an external audio output device via an
optical S/PDIF cable.
2. Video Graphics Adapter (VGA) port
VGA-compatible devices.
3. USB 2.0 ports 3 and 4.
These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
4. LAN (RJ-45) port.
This port allows Gigabit connection to a Local Area Network (LAN)
through a network hub.
LAN port LED indications
Activity Link LED
Status Description
OFF No link
BLINKING Data activity
This 15-pin port is for a VGA monitor or other
Speed LED
Status Description
OFF 10 Mbps connection
ORANGE 100 Mbps connection
GREEN 1 Gbps connection
ACT/LINK
LED
LAN port
SPEED
LED
5. RCA Out port (right-channel).
This port connects a receiver or an amplier via an
RCA cable.
6. Center/Subwoofer port (orange).
7. Rear Speaker Out port (black).
This port connects the center/subwoofer speakers.
This port connects the rear speakers in a 4-channel,
6-channel, 8-channel, or 10-channel audio conguration.
8. Line In port/Side Speaker Out port (light blue).
This port connects the tape, CD,
DVD player, or other audio sources in an 8-channel audio conguration. In an
10-channel audio conguration, this port connects the additional side speakers.
9. Line Out port (lime).
This port connects a headphone or a speaker. In 4-channel,
6-channel, 8-channel, and 10-channel conguration, the function of this port becomes
Front Speaker Out.
10. Microphone port (pink).
Chapter 1: Product introduction 1-21
This port connects a microphone.
11. Side Speaker Out port (gray). This port connects the side speakers in an 8-channel
or 10-channel audio congurations.
Refer to the audio conguration table below for the function of the audio ports in 2, 4, 6, 8,
or 10-channel conguration.
Audio 2, 4, 6, 8, or 10-channel conguration
Port
Light Blue Line In Line In Line In Line In
Lime Line Out Front Speaker Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink Mic In Mic In Mic In Mic In Mic In
Orange – – Center/Subwoofer Center/Subwoofer Center/Subwoofer
Black – Rear Speaker Out Rear Speaker Ou Rear Speaker Out Rear Speaker Out
Gray – – – Side Speaker Out Side Speaker Out
12. RCA Out port (left-channel). This port connects a receiver or an amplier via an RCA
13. USB 2.0 ports 1 and 2.
Headset
2-channel
4-channel 6-channel 8-channel 10-channel
cable.
These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
• For RC edition, connect the IR receiver to USB 2.0 port 1 or 2 which supports with
power-on function. The power-on function follows the behavior of the system sleep
button which can be customized in Windows® Control Panel.
• To disable the power-on function for USB 2.0 port 1 or 2, set the
Port 1/2 item to [Disabled] in the BIOS. When the Power on By USB Port 1/2 item is
set to [Enabled], connecting/disconnecting the USB devices to/from these two ports will
power on the system. Refer to page 2-17 for details.
Additional Side
Speaker Out
Power on By USB
14. External SATA port. This port connects an external Serial ATA hard disk drive.
• The external SATA port supports external Serial ATA 3.0 Gb/s devices. Longer cables
support higher power requirements to deliver signal up to two meters away, and enables
improved hot-swap function.
• Before using the External SATA port, ensure to set the
settings to [AHCI] and install the AHCI driver.
DO NOT insert a different connector to this port.
OnChip SATA Type in the BIOS
15. IEEE 1394a port. This 6-pin IEEE 1394a port provides high-speed connectivity for
audio/video devices, storage peripherals, PCs, or portable devices.
16. DVI-I Out port. This port is for any DVI-I compatible device and are HDCP compliant,
allowing playback of HD DVD, Blu-Ray and other protected content.
17. HDMI Out port. This port is for a high-denition multimedia interface (HDMI) connector.
1-22 ASUS M4A785G HTPC Series
Dual display table
This table indicates whether the dual display you want to use is supported or not.
Dual display output Support Not support
DVI + D-Sub •
HDMI + D-Sub •
DVI + HDMI •
Playback of HD DVD and Blu-Ray Discs
For better playback quality, we suggest that you follow the system requirements in the
suggested list below.
Suggested list
CPU AMD® Athlon 4400+
DIMM DDR2 800 (1GB or higher)
BIOS setup Frame Buffer Size--256MB or higher
Playback software CyberLink® PowerDVD 7.3
File format
Non-protected clips 1920 x 1080p 1920 x 1080p
HD-DVD 1920 x 1080p 1280 x 1080p
Blu-Ray 1280 x 1080p 1280 x 1080p
Windows XP Windows Vista
Best resolution
Chapter 1: Product introduction 1-23
Troubleshooting on HDTV overscaling or underscaling:
If your desktop is extending beyond the viewable display area or the desktop or image is not
lling the entire display area while using the onboard HDMI out port and the HDMI cable, you
can resize the desktop appearing on your HDTV screen.
To resize your HDTV desktop:
1. Install
2. Right-click the desktop and select
3. From the
4. Click
5. Move the
AMD Chipset Driver from the motherboard support DVD.
ATI CATALYST(R) Control Center.
Graphics Settings tree, expand DTV (HDMI™) 1.
Scaling Options.
Underscan/Overscan slider to adjust the overall size of the display on the
HDMI™ DTV.
Using this slider increases or decreases any black borders that may be visible around
the outside of the display.
3
4
5
6
6. To ensure that forcing a custom display mode through the ATI Displays Manager does
not create conicting resolutions, select the Use the scaling values instead of the
customized settings when the desktop resolution does not match your DFP
resolution check box.
The Scaling Options function of the DTV (HDMI™) 1 item in the ATI CATALYST Control
Center is adjustable only when you are using an HDTV compliance resolution such as 480i,
720i, or 1080i.
1-24 ASUS M4A785G HTPC Series
1.10.2 Internal connectors
1. CPU, Chassis and Power Fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1,
3-pin CHA_FAN2, 3-pin PWR_FAN)
The fan connectors support cooling fans of 350mA–740mA (8.88W max.) or a total of
1A–2.22A (26.64W max.) at +12V. Connect the fan cables to the fan connectors on the
motherboard, making sure that the black wire of each cable matches the ground pin of
the connector.
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the
system may damage the motherboard components. These are not jumpers! DO NOT place
jumper caps on the fan connectors.
Only the CPU_FAN and CHA_FAN1–2 connectors support the ASUS Q FAN 2 feature and
the ASUS Tranquil Mode. Refer to page 2-18 for the fan type setting
Chapter 1: Product introduction 1-25
2. 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 t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
•
We recommend that you use an ATX 12 V Specication 2.0-compliant power supply
unit (PSU) with a minimum of 300 W power rating. This PSU type has 24-pin and 4-pin
power plugs.
•
If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin
power plug can provide at least 15 A on +12 V and that the PSU has a minimum power
rating of 300 W. The system may become unstable or may not boot up if the power is
inadequate.
•
Do not forget to connect the 4-pin ATX +12 V power plug. Otherwise, the system will not
boot up.
• We recommend that you use a PSU with higher power output when conguring a
system with more power-consuming devices or when you intend to install additional
devices. The system may become unstable or may not boot up if the power is
inadequate.
•
If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
1-26 ASUS M4A785G HTPC Series
3. 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 one of the
following modes to congure your devices:
Drive jumper setting Mode of device(s) Cable connector
Single device Cable-Select or Master - Black
Cable-Select
Two devices
Master Master
Slave Slave
• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA
cable connector. This prevents incorrect insertion when you connect the IDE cable.
• Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices.
Master Black
Slave Gray
Black or gray
If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have the
same setting.
Chapter 1: Product introduction 1-27
4. Serial ATA connectors (7-pin SATA1-5)
These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk
and optical disk drives. The Serial ATA 3Gb/s is backward compatible with Serial ATA
1.5Gb/s specication. The data transfer rate of the Serial ATA 3Gb/s is faster than the
standard parallel ATA with 133 MB/s (Ultra DMA133). If you install Serial ATA hard disk
drives, you can create a RAID 0, RAID 1 or RAID 10 conguration through the onboard
SB710 chipset.
Important note on Serial ATA
Install Windows® XP Service Pack 2 or later version before using Serial ATA.
• For detailed instructions on how to congure RAID 0, RAID 1 and RAID 10, refer to the
RAID manual in the support DVD.
• If you intend to create a Serial ATA RAID set using these connectors, set the
SATA Type item in the BIOS to [RAID]. See page 2-8 for details.
1-28 ASUS M4A785G HTPC Series
OnChip
5. System panel connector (10-1 pin PANEL)
This connector supports several chassis-mounted functions.
•
System power LED (2-pin PLED)
This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.
• Hard disk drive activity LED (2-pin IDE_LED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The IDE LED lights up or ashes when data is read from or written to
the HDD.
• System warning speaker (4-pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
• ATX power button/soft-off button (2-pin PWRSR)
This connector is for the system power button. Pressing the power button turns
the system on or puts the system in sleep or soft-off mode depending on the BIOS
settings. Pressing the power switch for more than four seconds while the system is ON
turns the system OFF.
• Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
Chapter 1: Product introduction 1-29
6. USB connectors (10-1 pin USB56, USB78, USB910)
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 2.0 specication that supports up to
480 Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
7. Optical drive audio in connector (4-pin CD)
This connector allows you to receive stereo audio input from sound sources such as a
CD-ROM, TV tuner, or MPEG card.
1-30 ASUS M4A785G HTPC Series
8. Audio power connector (4-pin Audio_PWR)
This connector is for a 4-pin power plug from a power supply. Connect a power plug to
this audio power connector for better sound quality.
• We highly recommend that you connect a power plug to this audio power connector
for ensuring effective audio output. When the system detects that no power cable is
plugged in this connector, a reminder will appear during POST. You may turn off the
reminder in the BIOS setup. Refer to page 2-15 for details.
• Do not share the same power cable with other devices to reduce the electronic
interruption.
9. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) ports.
The S/PDIF module is purchased separately.
Chapter 1: Product introduction 1-31
10. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either High Denition Audio or AC`97 audio standard. Connect one end of the front
panel audio I/O module cable to this connector.
• We recommend that you connect a high-denition front panel audio module to this
connector to avail of the motherboard high-denition audio capability.
• If you want to connect a high-denition front panel audio module to this connector,
ensure that the Front Panel Select item in the BIOS is set to [HD]. If you want to
connect an AC’97 front panel audio module to this connector, set the item to [AC97].
See page 2-15 for details.
11. IEEE 1394a port connector (10-1 pin IE1394_2)
This connector is for an IEEE 1394a port. Connect the IEEE 1394a module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
Never connect a USB cable to the IEEE 1394a connector. Doing so will damage the
motherboard!
The IEEE 1394a module cable is purchased separately.
1-32 ASUS M4A785G HTPC Series
ASUS Q-Connector (system panel)
IDE_LED
POWER SW
RESET SW
IDE_LED-
IDE_LED+
PWR
Reset
Ground
Ground
You can use the ASUS Q-Connector to connect/disconnect chassis front panel cables in a
few steps. Refer to the instructions below to install the ASUS Q-Connector.
1. Connect the front panel cables to the ASUS
Q-Connector.
Refer to the labels on the Q-Connector to
know the detailed pin denitions, then match
them to the respective front panel cable
labels.
The labels of the front panel cables
may differ from chassis made by
different manufacturers.
2. Install the ASUS Q-Connector to the system
panel connector, making sure the orientation
matches the labels on the motherboard.
3. The front panel functions are now enabled.
The gure shows the Q-Connector properly
installed on the motherboard.
Chapter 1: Product introduction 1-33
1.11 Software support
1.11.1 Installing an operating system
This motherboard supports Windows® XP / 64-bit XP / Vista™ Operating Systems (OS).
Always install the latest OS version and corresponding updates to maximize the features of
your hardware.
• Motherboard settings and hardware options vary. Use the setup procedures presented in
this chapter for reference only. Refer to your OS documentation for detailed information.
• Ensure that you install Windows
the drivers for better compatibility and system stability.
1.11.2 Support DVD information
The Support DVD that comes with the motherboard package contains the drivers, software
applications, and utilities that you can install to avail all motherboard features.
• The contents of the Support DVD are subject to change at any time without notice. Visit
the ASUS website at www.asus.com for updates.
• For detailed software instructions, see the
download the latest software manual from the ASUS website at www.asus.com.
To run the Support DVD
Place the Support DVD to the optical drive. The DVD automatically displays the Drivers menu
if Autorun is enabled in your computer.
The screen on this page is used for reference only.
®
XP Service Pack 2 or later versions before installing
Manual menu in the Support DVD or
Click an icon to
display Support DVD/
motherboard information
Click an item to install
If Autorun is NOT enabled in your computer, browse the contents of the Support DVD to
locate the le ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run
the DVD.
1-34 ASUS M4A785G HTPC Series
1.11.3 ASUS Home Theater Gate
The ASUS Home Theater Gate, specially designed for the HTPC series, allows you to easily
and quickly launch media applications to enjoy your music and movies. With the bundled
remote controller, you can launch the ASUS Home Theater Gate and start media applications
with just one touch.
Launching Home Theater Gate
1. Install Home Theater Gate from the motherboard support DVD.
2. To launch Home Theater Gate ,click
Theater Gate > ASUS Home Theater Gate 1.xx.xx. The Home Theater Gate main
window appears.
Home Theater Gate main window
Click to minimize the Home Theater Gate window. Click the Home Theater
Gate icon in the Windows® notication area to restore the window
Click to return to the main window
Click to return to the previous page
Start > All Programs > ASUS > ASUS Home
Click to close the Home
Theater Gate window
Click to switch to the full
screen mode
View photos
Playback videos
Congure the Tranquil Mode,
Media Path Settings, Internet
Radio Settings, and Favorite
Music
Create your
music playlists
Chapter 1: Product introduction 1-35
Playback Internet Radio
The Internet Radio function is included in the bundled trial version software “mediaU Player
Mercury“. You may use the Top 20, Station Overview, History, Recommendations,
Station Search, and Recording Schedule functions without registering the software and
within the evaluation period.
Internet Radio channel setting
Long press the channel number and the station information on the currently playing station
will be saved to that channel number.
Supported type
Resolution Normal display under 1024 x 600 – 1920 x 1080
Music mp3, midi, wav, wma and cda
Video avi, mp4, mpeg, rmvb, wmv, rm, mov, asf, mpg, vob and dat
Photo bmp, dib, gif, jpg, jpeg, png, tif, tiff
DTS
Video player
Music player Windows® Media Player, Winamp, KMPlayer, RealPlayer, iTunes
Windows® Vista™ and Window
out only)
Windows® Media Player, PowerDVD 8 (Cyberlink), WinDVD 9 (Corel/
InterVideo), KMPlayer, Media Player Classic, RealPlayer and Arcsoft
TotalMedia Theatre 3
®
7 operating systems (HDMI and analog
• Visit the ASUS website at http://support.asus.com/download/download.
aspx?SLanguage=en-us for the latest supported type.
• Due to Window
Blu-ray disc.
1-36 ASUS M4A785G HTPC Series
®
XP limitation, you have to install the UDF Reader to recognize the
Using the remote controller (RC Edition only)
Use the remote controller to launch the ASUS Home Theater Gate and start media
applications.
Connect the IR receiver to the USB 2.0 port 1 or 2 before using the remote controller.
Power on/off*
Fast rewind
Stop
Previous track
Volume up
OK
Scroll left
Main window
Switch windows
Internet Radio**
Music***
Mute
Play/Pause
Fast forward
Next track
Volume down
Scroll up
Scroll right
Scroll down
Previous page
Full screen
Tranquil mode
DTS on/off
Launch Home Theater
Gate/Minimize Home
Theater Gate window
* This button follows the behavior of the system sleep button. Actual behavior of the system sleep
button can be customized in Windows® Control Panel > Power Options.
** Set up the internet radio channel 1 to 7 before using the Internet Radio.
*** Set the Favorite Music in the Settings or Music mode rst.
Chapter 1: Product introduction 1-37
1-38 ASUS M4A785G HTPC Series
Chapter 2
BIOS information
2.1 Managing and updating your BIOS
Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to
restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update
utility.
2.1.1 ASUS Update utility
The ASUS Update is a utility that allows you to manage, save, and update the motherboard
BIOS in Windows® environment.
• 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.
Installing ASUS Update
To install ASUS Update:
1. Place the support DVD in the optical drive. The
2. Click the
3. Follow the onscreen instructions to complete the installation.
Utilities tab, and then click Install ASUS Update.
Quit all Windows® applications before you update the BIOS using this utility.
Drivers menu appears.
Updating the BIOS
To update the BIOS:
1. From the Windows
ASUSUpdate to launch the ASUS Update utility.
2. From the dropdown list, select any of the updating process:
Updating from the Internet
a. Select Update BIOS from the Internet, and then click Next.
b. Select the ASUS FTP site nearest you to avoid network trafc, or click
Select, and then click Next.
c. From the FTP site, select the BIOS version that you wish to download, and then
click Next.
The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to avail all its features.
Chapter 2: BIOS setup 2-1
®
desktop, click Start > Programs > ASUS > ASUSUpdate >
Auto
Updating from a BIOS file
a. Select Update BIOS from a le, and then click Next.
b. Locate the BIOS le from the
Open window, and then click Open.
3. Follow the onscreen instructions to complete the updating process.
2.1.2 ASUS EZ Flash 2 utility
The ASUS EZ Flash 2 feature allows you to update the BIOS without having to use a
bootable oppy disk or a DOS-based utility.
Before you start using this utility, download the latest BIOS from the ASUS website
at www.asus.com.
To update the BIOS using EZ Flash 2:
1. Insert the USB ash disk that contains the latest BIOS le to the USB port, and then
launch EZ Flash 2 in any of these two ways:
• Press <Alt> + <F2> during POST to display the following.
• Enter the BIOS setup program. Go to the
press <Enter> to enable it.a.
ASUSTek EZ Flash 2 BIOS ROM Utility V3.38
FLASH TYPE: MXIC 25L1605A
Current ROM
BOARD: M4A785G-HTPC
VER: 0213
DATE: 07/20/2009
PATH: A:\
A:
Tools menu to select EZ Flash 2 and
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
Note
[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [Esc] Exit
2. Press <Tab> to switch between drives until the correct BIOS le is found. When
the correct BIOS le is found, EZ Flash 2 performs the BIOS update process and
automatically reboots the system when done.
• This function can support devices such as a USB ash disk with FAT 32/16 format and
single partition only.
• DO NOT shut down or reset the system while updating the BIOS to prevent system boot
failure!
Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Setup Defaults item under the Exit menu. See section 2.9 Exit Menu for details.
2-2 ASUS M4A785G HTPC Series
2.1.3 ASUS CrashFree BIOS 3 utility
The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the
BIOS le when it fails or gets corrupted during the updating process. You can restore a
corrupted BIOS le using the motherboard support DVD or a USB ash drive that contains
the BIOS le.
The BIOS le in the motherboard support DVD may be older than the BIOS le published
on the ASUS ofcial website. If you want to use the newer BIOS le, download the le at
support.asus.com and save it to a USB ash drive.
Recovering the BIOS
To recover the BIOS:
1. Turn on the system.
2. Insert the motherboard support DVD to the optical drive, or the USB ash drive
containing the BIOS le to the USB port.
3. The utility automatically checks the devices for the BIOS le. When found, the utility
reads the BIOS le and starts ashing the corrupted BIOS le.
4. Turn off the system after the utility completes the updating process and power on again.
5. The system requires you to enter BIOS Setup to recover BIOS setting. To ensure
system compatibility and stability, we recommend that you press <F2> to load default
BIOS values.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
2.2 BIOS setup program
This motherboard supports a programmable rmware chip that you can update using the
provided utility described in section 2.1 Managing and updating your BIOS.
Use the BIOS Setup program when you are installing a motherboard, reconguring your
system, or prompted to “Run Setup”. This section explains how to congure your system
using this utility.
Even if you are not prompted to use the Setup program, you can change the conguration of
your computer in the future. For example, you can enable the security password feature or
change the power management settings. This requires you to recongure your system using
the BIOS Setup program so that the computer can recognize these changes and record them
in the CMOS RAM of the rmware chip.
The rmware chip on the motherboard stores the Setup utility. When you start up the
computer, the system provides you with the opportunity to run this program. Press <Del>
during the Power-On Self-Test (POST) to enter the Setup utility. Otherwise, POST continues
with its test routines.
If you wish to enter Setup after POST, reboot the system by doing any of the following
procedures:
• Restart using the OS standard shut-down procedure.
• Press
• Press the reset button on the system chassis.
• Press the power button to turn the system off then back on.
<Ctrl>+<Alt>+<Del> simultaneously.
Chapter 2: BIOS setup 2-3
Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from
a running operating system can cause damage to your data or system. We recommend to
always shut-down the system properly from the operating system.
The Setup program is designed to make it as easy to use as possible. Being a menu-driven
program, it lets you scroll through the various submenus and make your selections from the
available options using the navigation keys.
• 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 Setups Default item under the Exit Menu. See section 2.9 Exit Menu.
• The BIOS setup screens shown in this section are for reference purposes only, and may
not exactly match what you see on your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS le for this
motherboard.
2.2.1 BIOS menu screen
Menu items Menu bar Conguration elds General help
Main Ai Tweaker Advanced Power Boot Tools Exit
System Time [10:17:30]
System Date [Tue 06/30/2009]
Language [English]
Primary IDE Master :[Not Detected]
Primary IDE Slave :[Not Detected]
SATA1 :[Not Detected]
SATA2 :[Not Detected]
SATA3 :[Not Detected]
SATA4 :[Not Detected]
SATA5 :[Not Detected]
ESATA :[Not Detected]
StorageConguration
System Information
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
Use [ENTER], [TAB]
or [SHIFT-TAB] to
selectaeld.
Use [+] or [-] to
conguresystemTime.
←→ Select Screen
↑↓ Select Item
+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit
Submenu items Navigation keys
2.2.2 Menu bar
The menu bar on top of the screen has the following main items:
Main For changing the basic system conguration
Ai Tweaker For changing the overclocking settings
Advanced For changing the advanced system settings
Power For changing the advanced power management (APM) conguration
Boot For changing the system boot conguration
Tools For changing the system tools conguration
Exit For selecting the exit options and loading default settings
2-4 ASUS M4A785G HTPC Series
To select an item on the menu bar, press the right or left arrow key on the keyboard until the
desired item is highlighted.
• The BIOS setup screens shown in this chapter are for reference purposes only, and may
not exactly match what you see on your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS information.
2.2.3 Navigation keys
At the bottom right corner of a menu screen are the navigation keys for that particular menu.
Use the navigation keys to select items in the menu and change the settings.
Some of the navigation keys differ from one screen to another.
2.2.4 Menu items
The highlighted item on the menu bar displays the specic 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 Submenu items
A solid triangle before each item on any menu screen means that the item has a submenu. To
display the submenu, select the item and press <Enter>.
2.2.6 Conguration elds
These elds show the values for the menu items. If an item is user-congurable, you can
change the value of the eld opposite the item. You cannot select an item that is not usercongurable.
A congurable eld is enclosed in brackets, and is highlighted when selected. To change the
value of a eld, select it then press <Enter> to display a list of options. Refer to 2.2.8 Pop-up
window.
2.2.7 General help
At the top right corner of the menu screen is a brief description of the selected item.
2.2.8 Pop-up window
Select a menu item then press <Enter> to
display a pop-up window with the conguration
Main Ai Tweaker Advanced Power Boot Tools Exit
Suspend Mode [Auto]
ACPI Version Features [Disabled]
ACPI APIC support [Enabled]
APMConguration
Hardware Monitor
options for that item.
2.2.9 Scroll bar
A scroll bar appears on the right side of a
menu screen when there are items that do not
t on the screen. Press the <Up> / <Down>
arrow keys or <Page Up> /<Page Down> keys
to display the other items on the screen.
Chapter 2: BIOS setup 2-5
v02.61 (C)Copyright 1985-2008, American Megatrends, Inc.
BIOS SETUP UTILITY
Disabled
Enabled
Scroll bar
Pop-up window
Use [ENTER], [TAB] or
[SHIFT-TAB] to select
aeld.
Use [+] or [-] to
conguresystemTime.
←→ Select Screen
↑↓ Select Item
+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit
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.
Refer to section 2.2.1 BIOS menu screen for information on the menu screen items and
how to navigate through them.
Main Ai Tweaker Advanced Power Boot Tools Exit
System Time [10:17:30]
System Date [Tue 06/30/2009]
Language [English]
Primary IDE Master :[Not Detected]
Primary IDE Slave :[Not Detected]
SATA1 :[Not Detected]
SATA2 :[Not Detected]
SATA3 :[Not Detected]
SATA4 :[Not Detected]
SATA5 :[Not Detected]
ESATA :[Not Detected]
StorageConguration
System Information
v02.61 (C)Copyright 1985-2008, American Megatrends, Inc.
BIOS SETUP UTILITY
Use [ENTER], [TAB]
or [SHIFT-TAB] to
selectaeld.
Use [+] or [-] to
conguresystemTime.
←→ Select Screen
↑↓ Select Item
+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit
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.
2.3.3 Language [English]
Allows you to select the display language for the BIOS setup screen.
Conguration options: [繁體中文] [簡體中文] [日本語] [Français] [Deutsch] [English]
2.3.4 Primary IDE Master/Slave
While entering Setup, the BIOS automatically detects the presence of IDE devices. There is
a separate submenu for each IDE device. Select a device item then press <Enter> to display
the IDE device information.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor,
Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring).
These values are not user-congurable. These items show Not Detected if no IDE device is
installed in the system.
Type [Auto]
Selects the type of IDE drive. Setting to [Auto] allows automatic selection of the appropriate
IDE device type. Select [CDROM] if you are specically conguring a CD-ROM drive. Select
[ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive.
Conguration options: [Not Installed] [Auto] [CDROM] [ARMD]
2-6 ASUS M4A785G HTPC Series
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.
Conguration options: [Disabled] [Auto]
Block (Multi-Sector Transfer) M [Auto]
Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from
and to the device occurs multiple sectors at a time if the device supports multi-sector transfer
feature. When set to [Disabled], the data transfer from and to the device occurs one sector at
a time. Conguration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode. Conguration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Conguration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer. Conguration options: [Disabled] [Enabled]
2.3.5 SATA 1–5/ESATA
While entering Setup, the BIOS automatically detects the presence of Serial ATA devices.
There is a separate submenu for each SATA device. Select a device item then press <Enter>
to display the SATA device information.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor, Size,
LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These
values are not user-congurable. These items show Not Detected if no Serial ATA device is
installed in the system.
Type [Auto]
Selects the type of device installed. Setting to [Auto] allows automatic selection of the
appropriate device type. Select [CDROM] if you are specically conguring a CD-ROM drive.
Select [ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or
MO drive. Conguration options: [Not Installed] [Auto] [CDROM] [ARMD]
This item appears in SATA5 and ESATA only.
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.
Conguration options: [Disabled] [Auto]
Block (Multi-sector Transfer) M [Auto]
Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from
and to the device occurs multiple sectors at a time if the device supports multi-sector transfer
feature. When set to [Disabled], the data transfer from and to the device occurs one sector at
a time. Conguration options: [Disabled] [Auto]
Chapter 2: BIOS setup 2-7
PIO Mode [Auto]
Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode. Conguration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Conguration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer. Conguration options: [Disabled] [Enabled]
2.3.6 Storage Conguration
This menu allows you to congure the storage devices.
OnChip SATA Channel [Enabled]
Enables or disables the OnChip SATA Channel.
Conguration options: [Enabled] [Disabled]
The following two (2) items appear only when you set the OnChip SATA Channel item to
[Manual].
SATA Port1 - Port4 [IDE]
Allows you to select the SATA type for SATA port 1–4.
Conguration options: [IDE] [RAID] [AHCI]
SATA Port5 - Port6 [IDE]
Allows you to select the SATA type for SATA port 5/6. The available conguration
options vary depending on the setting of the SATA Port1 - Port4 item.
• If you want the Serial ATA hard disk drives to use the Advanced Host Controller Interface
(AHCI), set this item to [AHCI]. The AHCI allows the onboard storage driver to enable
advanced Serial ATA features that increases storage performance on random workloads
by allowing the drive to internally optimize the order of commands.
• If you want to create a RAID 0, RAID 1, and RAID 10 conguration from the Serial ATA
hard disk drives, set this item to [RAID].
2.3.7 System Information
This menu gives you an overview of the general system specications. The BIOS
automatically detects the items in this menu.
BIOS Information
Displays the auto-detected BIOS information.
Processor
Displays the auto-detected CPU specication.
System Memory
Displays the auto-detected system memory.
2-8 ASUS M4A785G HTPC Series
2.4 Ai Tweaker menu
The Ai Tweaker menu items allow you to congure overclocking-related items.
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld
values can cause the system to malfunction.
The default values of the following items vary depending on the CPU and memory modules
you install on the motherboard.
Main Ai Tweaker Advanced Power Boot Tools Exit
CongureSystemFrequency/Voltage
Ai Overclock Tuner [Auto]
CPU Ratio [Auto]
DRAMFrequency [Auto]
CPU/NBFrequency [Auto]
HTLinkFrequency [Auto]
MemoryConguration
DRAMTimingConguration
******* Please key in numbers directly! *******
CPU Voltage [Auto]
CPU/NB Voltage [Auto]
DRAM Voltage [Auto]
NB Voltage [Auto]
HT/SB Voltage [Auto]
***********************************************
CPU Spread Spectrum [Auto]
PCIE Spread Spectrum [Auto]
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
Select the target CPU
frequency,andthe
relevant parameters
will be auto-adjusted.
←→ Select Screen
↑↓ Select Item
+- Change Field
F1 General Help
F10 Save and Exit
ESC Exit
2.4.1 Ai Overclock Tuner [Auto]
Allows selection of CPU overclocking options to achieve desired CPU internal frequency.
Conguration options: [Manual] [Auto]
The following two (2) items appear only when you set the Ai Overclock Tuner item to
[Manual].
CPU Bus Frequency [XXX]
Displays the frequency sent by the clock generator to the system bus and PCI bus. Use the
<+> and <-> keys to adjust the FSB frequency. You can also type the desired frequency using
the numeric keypad. The values range from 200 to 600.
PCIE Frequency [XXX]
Use the <+> and <-> keys to adjust the PCIE frequency. You can also type the desired PCIE
frequency using the numeric keypad. The values range from 100 to 150.
2.4.2 CPU Ratio [Auto]
Allows you to adjust the ratio between CPU Core Clock and FSB Frequency. Use the <+>
and <-> keys to adjust the value. The valid value ranges vary according to your CPU model.
2.4.3 DRAM Frequency [Auto]
Allows you to set the DDR2 operating frequency. The conguration options vary with the CPU
Bus Frequency item settings.
Selecting a very high DRAM frequency may cause the system to become unstable! If this
happens, revert to the default setting.
Chapter 2: BIOS setup 2-9
2.4.4 CPU/NB Frequency [Auto]
Allows you to select the CPU/NB frequency. The conguration options vary with the CPU Bus
Frequency item settings.
2.4.5 HT Link Frequency [Auto]
Allows you to set the HyperTransport link frequency. The conguration options vary with the
CPU Bus Frequency item settings.
2.4.6 Memory Conguration
Allows you to change the advanced memory settings.
Bank Interleaving [Auto]
Allows you to enable or disable the bank memory interleaving.
Conguration options: [Disabled] [Auto]
Channel Interleaving [XOR of Address bit]
Allows you to set the channel interleaving mode.
Conguration options: [Disabled] [Address bits 6] [Address bits 12]
[XOR of Address bits [20:16, 6]] [XOR of Address bits [20:16, 9]]
Enable Clock to All DIMMs [Disabled]
Allows you to enable unused clocks to DIMMs even the memory slots are no populated.
Conguration options: [Disabled] [Enabled]
MemClk Tristate C3/ATLVID [Disabled]
Allows you to enable or disable MemClk Tri-Stating during C3 and Alt VID.
Conguration options: [Disabled] [Enabled]
Memory Hole Remapping [Enabled]
Allows you to enable or disable memory remapping around memory hole.
Conguration options: [Disabled] [Enabled]
DCT Unganged Mode [Always]
Allows selection of the unganged DRAM mode.
Conguration options: [Auto] [Always]
Power Down Enable [Disabled]
Allows you to enable or disable the DDR power down mode.
Conguration options: [Disabled] [Enabled]
Power Down Mode [Channel]
Appears only when you enable the Power Down Enable item.
Conguration options: [Channel] [Chip Select]
2.4.7 DRAM Timing Conguration
Allows you to change the advanced DRAM timing settings.
The conguration options for some of the following items vary depending on the DIMMs
you install on the motherboard.
2-10 ASUS M4A785G HTPC Series
DRAM Command Rate [Auto]
Allows selection of the DRAM command rate.
Conguration options: [Auto] [1T] [2T]
DRAM Timing Mode [Auto]
Allows selection of the DRAM Timing Mode.
Conguration options: [Auto] [Manual]
The following sub-items appear only when you set the DRAM Timing Mode item to
[Manual].
DCT0 1st Information: 5-5-5-3(5)-15-20-5-3
TCL [Auto]
Conguration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK] [7 CLK DH_Only]
TRCD [Auto]
Conguration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK]
TRP [Auto]
Conguration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK]
TRTP [Auto]
Conguration options: [Auto] [2-4 CLK] [3-5 CLK]
TRAS [Auto]
Conguration options: [Auto] [5 CLK] [6 CLK] – [17 CLK] [18 CLK]
TRC [Auto]
Conguration options: [Auto] [11 CLK] [12 CLK] – [25 CLK] [26 CLK]
TWR [Auto]
Conguration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK]
TRRD [Auto]
Conguration options: [Auto] [2 CLK] [3 CLK] [4 CLK] [5 CLK]
DCT0 2nd Information: 7-105-75
TRWTTO [Auto]
Conguration options: [Auto] [3 CLK] [4 CLK] – [16 CLK] [17 CLK]
TWRRD [Auto]
Conguration options: [Auto] [1 CLK] [2 CLK] [3 CLK] [4 CLK]
TWTR [Auto]
Species the write to read delay when accessing the same DIMM.
Conguration options: [Auto] [1 CLK] [2 CLK] [3 CLK]
TWRWR [Auto]
Conguration options: [Auto] [1 CLK] [2 CLK] [3 CLK] [4 CLK]
TRDRD [Auto]
Conguration options: [Auto] [3 CLK] [4 CLK] [5 CLK]
TRFC0 [Auto]
Conguration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]
TRFC1 [Auto]
Conguration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]
Chapter 2: BIOS setup 2-11
The following ve (5) items are adjusted by typing the desired values using the numeric keypad
and press the <Enter> key. You can also use the <+> and <-> keys to adjust the value. To
restore the default setting, type [auto] using the keyboard and press the <Enter> key.
2.4.8 CPU Voltage [Auto]
Allows you to set the CPU VCore voltage.
2.4.9 CPU/NB Voltage [Auto]
Allows you to set the CPU/NB voltage.
2.4.10 DRAM Voltage [Auto]
Allows you to set the DRAM voltage. The values range from 1.80V to 2.50V with a 0.10V interval.
2.4.11 NB Voltage [Auto]
Allows you to set the Northbridge voltage. The values range from 1.10V to 1.20V with a
0.10V interval.
2.4.12 HT/SB Voltage [Auto]
Allows you to set the HyperTransport voltage. The values range from 1.20V to 1.30V with a
0.10V interval.
2.4.13 CPU Spread Spectrum [Auto]
Set to [Disabled] to enhance FSB overclocking ability or [Enabled] for EMI control.
Conguration options: [Auto] [Disabled] [Enabled]
2.4.14 PCIE Spread Spectrum [Auto]
Set to [Disabled] to enhance PCIE overclocking ability or [Linear Down] for EMI control.
Conguration options: [Auto] [Disabled] [Enabled]
2-12 ASUS M4A785G HTPC Series
2.5 Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Be cautious when changing the settings of the Advanced menu items. Incorrect eld values
can cause the system to malfunction.
Main Ai Tweaker Advanced Power Boot Tools Exit
CPUConguration
Chipset
OnboardDevicesConguration
USBConguration
PCIPnP
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
BIOS SETUP UTILITY
CongureCPU.
←→ Select Screen
↑↓ Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
2.5.1 CPU Conguration
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. Conguration options: [Disabled] [Enabled]
Microcode Updation [Enabled]
Allows you to enable or disable the microcode updation.
Conguration options: [Disabled] [Enabled]
Secure Virtual Machine Mode [Enabled]
Allows you to enable or disable the AMD Secure Virtual Machine mode (SVM).
Conguration options: [Disabled] [Enabled]
Cool ’n’ Quiet [Enabled]
Enables or disables the AMD Cool’n’Quiet function.
Conguration options: [Disabled] [Enabled]
ACPI SRAT Table [Enabled]
Allows you to enable or disable the building of ACPI SRAT Table.
Conguration options: [Enabled] [Disabled]
CPU Prefetching [Enabled]
Allows you to enable or disable CPU prefetching. Conguration options: [Enabled] [Disabled]
C1E Support [Disabled]
Allows you to enable or disable the Enhanced Halt State support.
Conguration options: [Enabled] [Disabled]
Chapter 2: BIOS setup 2-13
2.5.2 Chipset
The Chipset menu allows you to change the advanced chipset settings. Select an item then
press <Enter> to display the submenu.
ECC Conguration
ECC Mode [Disabled]
Disables or sets the DRAM ECC mode that allows the hardware to report and
correct memory errors. Set this item to [Basic], [Good], or [Max] to allow ECC mode
auto-adjustment. Set this item to [Super] to adjust the DRAM BG Scrub sub-item
manually. You may also adjust all sub-items by setting this item to [User].
Conguration options: [Disabled] [Basic] [Good] [Super] [Max] [User]
DRAM ECC Enable [Disabled]
Set this item to [Enabled] to allow hardware to report and correct memory errors automatically,
maintaining system integrity. Conguration options: [Disabled] [Enabled]
DRAM SCRUB REDIRECT [Disabled]
Enables or disables the DRAM SCRUB REDIRECT feature that allows the system to correct the
DRAM ECC errors immediately when they occur. Conguration options: [Disabled] [Enabled]
4-Bit ECC Mode [Disabled]
Enables or disables the ECC chip kill feature. Conguration options: [Disabled] [Enabled]
DRAM BG Scrub [Disabled]
Disables or sets the DRAM BG Scrub. Conguration options: [Disabled] [40ns] [80ns] [160ns]
[320ns] [640ns] [1.28us] [2.56us] [5.12us] [10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us]
[655.4us] [1.31ms] [2.62ms] [5.24ms] [10.49ms] [20.97ms] [42.00ms] [84.00ms]
Data Cache BG Scrub [Disabled]
Disables or sets the Data Cache BG Scrub. This item allows the L1 Data Cache RAM to be
corrected when idle. Conguration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns]
[1.28us] [2.56us] [5.12us] [10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us]
[1.31ms] [2.62ms] [5.24ms] [10.49ms] [20.97ms] [42.00ms] [84.00ms]
L2/L3 Cache BG Scrub [Disabled]
Disables or sets the L2/L3 Cache BG Scrub. This item allows the L2/L3 Data Cache RAM to
be corrected when idle. Conguration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns]
[1.28us] [2.56us] [5.12us] [10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us]
[1.31ms] [2.62ms] [5.24ms] [10.49ms] [20.97ms] [42.00ms] [84.00ms]
Internal Graphics Conguration
This menu allows you to change the onboard graphics conguration settings. Select an item
then press <Enter> to display the submenu.
UMA Frame Buffer Size [Auto]
Allows you to select the UMA Frame Buffer size. Conguration options: [Auto] [32MB]
[64MB] [128MB] [256MB]
GFX Engine Clock Override [Disabled]
Allows you to enable or disable the GFX Engine Clock Override function.
Conguration options: [Disabled] [Enabled]
Surround View [Auto]
If you set the PCI Express device as the primary display and enable this item, you may
use the internal graphics as the secondary display. Conguration options: [Auto] [Enabled]
[Disabled]
2-14 ASUS M4A785G HTPC Series
FB Location [Above 4G]
Allows you to select the FB Location.
Conguration options: [Below 4G] [Above 4G]
AMD 785G HD Audio [Enabled]
Allows you to disable or enable the AMD 785G HD Audio.
Conguration options: [Disabled] [Enabled]
Primary Display Adapter [PCI-E]
Allows you to select the graphics controller to use as the primary boot device.
Conguration options: [PCI-E] [PCI] [Onboard]
2.5.3 Onboard Devices Conguration
Onboard HD Audio [Enabled]
Allows you to enable or disable the HD Audio controller.
Conguration options: [Disabled] [Enabled]
Front Panel Select [HD]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or
high-denition audio depending on the audio standard that the front panel audio
module supports. Conguration options: [AC97] [HD]
Audio PWR Reminder [Enabled]
When the system detects that no power cable is plugged in the audio power connector,
a reminder will appear during POST. This item allows you to enable or disable this
function. Conguration options: [Enabled] [Disabled]
Onboard LAN [Enabled]
Allows you to enable or disable the onboard LAN. Conguration options: [Enabled] [Disabled]
Onboard LAN Boot ROM [Disabled]
Allows you to enable or disable the onboard LAN Boot ROM.
Conguration options: [Disabled] [Enabled]
Onboard 1394 [Enabled]
Allows you to enable or disable the onboard 1394 device support.
Conguration options: [Disabled] [Enabled]
2.5.4 USB Conguration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the conguration options.
The Module Version and USB Devices Enabled items show the auto-detected values. If
no USB device is detected, the item shows None.
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy operating systems
(OS). Setting to Auto allows the system to detect the presence of USB devices at startup.
If detected, the USB controller legacy mode is enabled. If no USB device is detected, the
legacy USB support is disabled. Conguration options: [Disabled] [Enabled] [Auto]
Chapter 2: BIOS setup 2-15
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Conguration options: [Enabled] [Disabled]
The following two (2) items appear only when you set the USB 2.0 Controller item to
[Enabled].
USB 2.0 Controller Mode [HiSpeed]
Allows you to congure the USB 2.0 controller in HiSpeed (480 Mbps) or
FullSpeed (12 Mbps). Conguration options: [FullSpeed] [HiSpeed]
BIOS EHCI Hand-Off [Enabled]
Allows you to enable the support for operating systems without an EHCI hand-off
feature. Conguration options: [Disabled] [Enabled]
2.5.5 PCIPnP
The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices.
Plug And Play O/S [No]
When set to [No], BIOS congures all the devices in the system. When set to [Yes] and if you
install a Plug and Play operating system, the operating system congures the Plug and Play
devices not required for boot. Conguration options: [No] [Yes]
2.6 Power menu
The Power menu items allow you to change the settings for the Advanced Conguration and
Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then
press <Enter> to display the conguration options.
Main Ai Tweaker Advanced Power Boot Tools Exit
Suspend Mode [Auto]
ACPI 2.0 Support [Disabled]
ACPI APIC support [Enabled]
Chassis LED [On]
EuP Ready [Disabled]
APMConguration
Hardware Monitor
BIOS SETUP UTILITY
Select the ACPI state
used for System
Suspend.
←→ Select Screen
↑↓ Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
2-16 ASUS M4A785G HTPC Series
2.6.1 Suspend Mode [Auto]
Allows you to select the Advanced Conguration and Power Interface (ACPI) state to be used
for system suspend.
[S1(POS) Only] - Enables the system to enter the ACPI S1 (Power on Suspend) sleep state.
[S3 Only] - Enables the system to enter the ACPI S3 (Suspend to RAM) sleep state (default).
[Auto] - Detected by OS.
In S1 sleep state, the system appears suspended and stays in a low power
mode. The system can be resumed at any time.
In S3 sleep state, the system appears to be off and consumes less power than in
the S1 state. When signaled by a wake-up device or event, the system resumes
to its working state exactly where it was left off.
2.6.2 ACPI 2.0 Support [Disabled]
Allows you to add more tables for Advanced Conguration and Power Interface (ACPI) 2.0
specications. Conguration options: [Disabled] [Enabled]
2.6.3 ACPI APIC support [Enabled]
Allows you to enable or disable the Advanced Conguration and Power Interface (ACPI)
support in the Application-Specic Integrated Circuit (ASIC). When set to Enabled, the ACPI
APIC table pointer is included in the RSDT pointer list.
Conguration options: [Disabled] [Enabled]
2.6.4 Chassis LED [On]
Allows you to turn on or off the chassis LED. Conguration options: [On] [Off]
2.6.5 EuP Ready [Disabled]
Enabling this item will allow BIOS to switch off some power at S5 state to minimize the stand-by
and off-mode losses to have the system ready for Eup (Energy Using Product) requirement.
When set to [Enabled], power for WOL, Wake on USB, audio, and LEDs on the motherboard
will be switched off. You may encounter no network capability, incomplete wake-on-USB
function and popping noise at this mode. Conguration options: [Disabled] [Enabled]
2.6.6 APM Conguration
Restore on AC Power Loss [Power Off]
When set to Power Off, the system goes into off state after an AC power loss. When set to
Power On, the system goes on after an AC power loss.
Conguration options: [Power On] [Power Off] [Last State]
Power On By PME [Disabled]
Allows you to enable or disable the PCI/PCIE/onboard LAN devices to generate a wake
event. Conguration options: [Disabled] [Enabled]
Power On By RTC Alarm [Disabled]
Allows you to enable or disable RTC to generate a wake event. When this item is set to
[Enabled], the items RTC Alarm Date (Days) and RTC Alarm Time (HH:MM:SS) appear
with set values. Conguration options: [Disabled] [Enabled]
Power On By USB Port 1/2 [Disabled]
Allows you to enable or disable the power-on function controlled by the USB devices
connected to the USB 2.0 port 1 or 2. Conguration options: [Disabled] [Enabled]
Chapter 2: BIOS setup 2-17
2.6.7 Hardware Monitor
CPU/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 Fan / Chassis Fan 1 / Chassis Fan 2 Speed [xxxxRPM] or [Ignored]
The onboard hardware monitor automatically detects and displays the CPU, chassis, and
power fan speed in rotations per minute (RPM). If the fan is not connected to the motherboard,
the eld shows N/A. Select [Ignored] if you do not wish to display the detected speed.
VCORE / 3.3V / 5V / 12V Voltage
The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators. Select Ignored if you do not wish to display the detected voltage output.
CPU Q-Fan Function [Disabled]
Allows you to enable or disable the CPU Q-Fan feature that smartly adjusts the fan speeds
for more efcient system operation. Conguration options: [Disabled] [Enabled]
Select Fan Type: [PWM Fan]
This item appears only when you set the CPU Q-Fan Function item to [Enabled] and allows
you to select the CPU fan type you installed on the motherboard.
Conguration options: [PWM Fan] [DC Fan]
• If you install a PWM (4-pin) fan but set this item to [DC Fan], the fan you installed may
not work.
• If you install a DC (3-pin) fan but set this item to [PWM Fan], the CPU Q-Fan function
will not work, and the fan you install will always run at full speed.
CPU Q-Fan Mode [Silent]
Allows you to set the appropriate performance level of the CPU Q-Fan. When set to
[Optimal], the CPU fan automatically adjusts depending on the CPU temperature. Set this
item to [Silent] to minimize fan speed for quiet CPU fan operation, or [Performance] to
achieve the maximum CPU fan speed. Conguration options: [Performance] [Optimal] [Silent]
Chassis Q-Fan Function [Disabled]
Allows you to enable or disable the chassis Q-Fan feature that smartly adjusts the fan speeds
for more efcient system operation. Conguration options: [Disabled] [Enabled]
Chassis Q-Fan Mode [Silent]
Allows you to set the appropriate performance level of the Chassis Q-Fan. When set to [Optimal],
the Chassis fan automatically adjusts depending on the Chassis temperature. Set this item to
[Silent] to minimize fan speed for quiet Chassis fan operation, or [Performance] to achieve the
maximum Chassis fan speed. Conguration options: [Performance] [Optimal] [Silent]
2-18 ASUS M4A785G HTPC Series
2.7 Boot menu
The Boot menu items allow you to change the system boot options. Select an item then
press <Enter> to display the submenu.
Main Ai Tweaker Advanced Power Boot Tools Exit
Boot Settings
Boot Device Priority
BootSettingsConguration
Security
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
2.7.1 Boot Device Priority
1st ~ xxth Boot Device
These items specify the boot device priority sequence from the available devices. The number
of device items that appears on the screen depends on the number of devices installed in the
system. Conguration options: [Removable Dev.] [Hard Drive] [ATAPI CD-ROM] [Disabled]
• To select the boot device during system startup, press <F8> when ASUS Logo appears.
• To access Windows OS in Safe Mode, do any of the following:
- Press <F5> when ASUS Logo appears.
- Press <F8> after POST.
BIOS SETUP UTILITY
SpeciestheBoot
Device Priority
sequence.
Avirtualoppydisk
drive (Floppy Drive B:
) may appear when you
set the CD-ROM drive
astherstboot
device.
←→ Select Screen
↑↓ Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
2.7.2 Boot Settings Conguration
Quick Boot [Enabled]
Enabling this item allows the BIOS to skip some power on self tests (POST) while booting to
decrease the time needed to boot the system. When set to [Disabled], BIOS performs all the
POST items. Conguration options: [Disabled] [Enabled]
Full Screen Logo [Enabled]
This allows you to enable or disable the full screen logo display feature.
Conguration options: [Disabled] [Enabled]
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. Conguration options: [Force BIOS] [Keep Current]
Bootup Num-Lock [On]
Allows you to select the power-on state for the NumLock. Conguration options: [Off] [On]
Wait for ‘F1’ If Error [Enabled]
When set to [Enabled], the system waits for the F1 key to be pressed when error occurs.
Conguration options: [Disabled] [Enabled]
Chapter 2: BIOS setup 2-19
Hit ‘DEL’ Message Display [Enabled]
When set to [Enabled], the system displays the message Press DEL to run Setup during
POST. Conguration options: [Disabled] [Enabled]
2.7.3 Security
The Security menu items allow you to change the system security settings. Select an item
then press <Enter> to display the conguration options.
Change Supervisor Password
Select this item to set or change the supervisor password. The Supervisor Password item on top
of the screen shows the default Not Installed. After you set a password, this item shows Installed.
To set a Supervisor Password
1. Select the Change Supervisor Password item and press <Enter>.
2. From the password box, type a password composed of at least six letters and/or
numbers, then press <Enter>.
3. Conrm the password when prompted.
The message “Password Installed” appears after you successfully set your password.
To change the supervisor password, follow the same steps as in setting a supervisor password.
To clear the supervisor password, select the Change Supervisor Password then press
<Enter>. The message “Password Uninstalled” appears.
If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock
(RTC) RAM. See section 1.9 Jumpers for information on how to erase the RTC RAM.
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.
Conguration options: [No Access] [View Only] [Limited] [Full Access]
No Access prevents user access to the Setup utility.
View Only allows access but does not allow change to any eld.
Limited allows changes only to selected elds, such as Date and Time.
Full Access allows viewing and changing all the elds in the Setup utility.
Change User Password
Select this item to set or change the user password. The User Password item on top of the
screen shows the default Not Installed. After you set a password, this item shows Installed.
To set a User Password:
1. Select the Change User Password item and press <Enter>.
2. On the password box that appears, type a password composed of at least six letters
and/or numbers, then press <Enter>.
3. Conrm the password when prompted.
The message “Password Installed” appears after you set your password successfully.
To change the user password, follow the same steps as in setting a user password.
Clear User Password
Select this item to clear the user password.
Password Check [Setup]
When set to [Setup], BIOS checks for user password when accessing the Setup utility. When
set to [Always], BIOS checks for user password both when accessing Setup and booting the
system. Conguration options: [Setup] [Always]
2-20 ASUS M4A785G HTPC Series
2.8 Tools menu
Main Ai Tweaker Advanced Power Boot Tools Exit
ASUS EZ Flash 2
Express Gate [Auto]
Enter OS Timer [10 Seconds]
Reset User Data [No]
AI NET 2
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
2.8.1 ASUS EZ Flash 2
Allows you to run ASUS EZ Flash 2. When you press <OK>, a conrmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <OK> to
conrm your choice.
2.8.2 Express Gate [Auto]
Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate
feature is a unique instant-on environment that provides quick access to the Internet browser
and Skype. Conguration options: [Auto] [Enabled] [Disabled]
Enter OS Timer [10 Seconds]
Sets countdown duration that the system waits at the Express Gate’s rst screen before
starting Windows or other installed OS. Choose [Prompt User] to stay at the rst screen of
Express Gate for user action. Conguration options: [Prompt User] [1 second] [3 seconds]
[5 seconds] [10 seconds] [15 seconds] [20 seconds] [30 seconds]
BIOS SETUP UTILITY
Press ENTER to run
the utility to select
and update BIOS.
This utility supports
1.FAT 12/16/32 (r/w)
2.NTFS (read only)
3.CD-DISC (read only)
←→ Select Screen
↑↓ Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
Reset User Data [No]
Allows you to clear Express Gate’s user data. Conguration options: [No] [Reset]
When setting this item to [Reset], make sure to save the setting to the BIOS so that the
user data will be cleared the next time you enter the Express Gate. User data includes the
Express Gate’s settings as well as any personal information stored by the web browser
(bookmarks, cookies, browsing history, etc.). This is useful in the rare case where corrupt
settings prevent the Express Gate environment from launching properly.
The rst time wizard will run again when you enter the Express Gate environment after
clearing its settings.
2.8.3 AI NET 2
Check Realtek LAN cable [Disabled]
Enables or disables checking of the Realtek LAN cable during the Power-On Self-Test
(POST). Conguration options: [Disabled] [Enabled]
Chapter 2: BIOS setup 2-21
2.9 Exit menu
The Exit menu items allow you to load the optimal or failsafe default values for the BIOS
items, and save or discard your changes to the BIOS items.
Main Ai Tweaker Advanced Power Boot Tools Exit
Exit Options
Exit & Save Changes
Exit & Discard Changes
Discard Changes
Load Setup Defaults
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
Pressing <Esc> does not immediately exit this menu. Select one of the options from this
menu or <F10> from the legend bar to exit.
Exit & Save Changes
Once you are nished making your selections, choose this option from the Exit menu to
ensure the values you selected are saved to the CMOS RAM. An onboard backup battery
sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this
option, a conrmation window appears. Select OK to save changes and exit.
If you attempt to exit the Setup program without saving your changes, the program prompts
you with a message asking if you want to save your changes before exiting. Press <Enter>
to save the changes while exiting.
BIOS SETUP UTILITY
Exit system setup
after saving the
changes.
F10 key can be used
for this operation.
←→ Select Screen
↑↓ Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
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 elds other than System Date, System Time, and
Password, the BIOS asks for a conrmation before exiting.
Discard Changes
This option allows you to discard the selections you made and restore the previously saved
values. After selecting this option, a conrmation appears. Select OK to discard any changes
and load the previously saved values.
Load Setup Defaults
This option allows you to load the default values for each of the parameters on the Setup
menus. When you select this option or if you press <F5>, a conrmation window appears.
Select OK to load default values. Select Exit & Save Changes or make other changes
before saving the values to the non-volatile RAM.
2-22 ASUS M4A785G HTPC Series
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