939A785GMH/128M
AMD 785G + SB710 Chipsets

Platform CPU

www.asrock.com
- Micro ATX Form Factor: 9.6-in x 8.6-in, 24.4 cm x 21.8 cm - Solid Capacitor for CPU power - Socket 939 for AMD AthlonTM 64FX / 64X2 / 64 processors - Supports AMD's Cool 'n' Quiet Technology - FSB 1000 MHz (2.0 GT/s) - Supports Untied Overclocking Technology - Supports Hyper-Transport Technology - Northbridge: AMD 785G - Southbridge: AMD SB710 - Dual Channel DDR memory technology - 4 x DDR DIMM slots - Supports DDR 400/333/266 non-ECC, un-buffered memory - Max. capacity of system memory: 4GB - 1 x PCI Express 2.0 x16 slot (green @ x16 mode) - 1 x PCI Express 2.0 x1 slot - 2 x PCI slots - Supports ATITM Hybrid CrossFireXTM - Integrated AMD Radeon HD 4200 graphics - DX10.1 class iGPU, Shader Model 4.1 - Max. shared memory 512MB - Integrated 128MB side port memory for iGPU - Three VGA Output options: D-Sub, DVI-D and HDMI - Supports HDMI Technology with max. resolution up to 1920x1200 (1080P) - Supports Dual-link DVI with max. resolution up to 2560x1600 @ 75Hz - Supports D-Sub with max. resolution up to 2048x1536 @ 60Hz - Supports HDCP function with DVI-D port - Supports Full HD 1080p Blu-ray (BD) / HD-DVD playback with DVI-D port - 7.1 CH Windows Vista Premium Level HD Audio (ALC888 Audio Codec) - PCIE x1 Gigabit LAN 10/100/1000 Mb/s - Realtek RTL8111DL - Supports Wake-On-LAN I/O Panel - 1 x PS/2 Keyboard Port - 1 x VGA/D-Sub Port - 1 x VGA/DVI-D Port - 1 x HDMI Port - 1 x Optical SPDIF Out Port - 4 x Ready-to-Use USB 2.0 Ports - 1 x eSATAII Port - 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) - HD Audio Jack: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone - 5 x Serial ATAII 3.0 Gb/s connectors, support RAID (RAID 0, RAID 1, RAID 10 and JBOD), NCQ, AHCI and "Hot Plug" functions - 1 x ATA133 IDE connector (supports 2 x IDE devices) - 1 x Floppy connector - 1 x IR header - 1 x COM port header - 1 x Print port header - CPU/Chassis/Power FAN connector - 24 pin ATX power connector - 4 pin 12V power connector - CD in header - Front panel audio connector - 3 x USB 2.0 headers (support 6 USB 2.0 ports) - 8Mb AMI Legal BIOS - Supports "Plug and Play" - ACPI 1.1 Compliance Wake Up Events - Supports jumperfree - SMBIOS 2.3.1 Support - VCCM, NB Voltage Multi-adjustment - Supports Smart BIOS - Drivers, Utilities, AntiVirus Software (Trial Version) - ASRock OC Tuner - Intelligent Energy Saver - Instant Boot - ASRock Instant Flash - ASRock OC DNA - Hybrid Booster: - CPU Frequency Stepless Control - ASRock U-COP - Boot Failure Guard (B.F.G.) - CPU Temperature Sensing - Chassis Temperature Sensing - CPU/Chassis/Power Fan Tachometer - CPU Quiet Fan - Voltage Monitoring: +12V, +5V, +3.3V, Vcore - Microsoft Windows 7 / 7 64-bit / VistaTM / VistaTM 64-bit / XP / XP Media Center / XP 64-bit compliant - FCC, CE, WHQL - EuP Ready (EuP ready power supply is required) - Quick Installation Guide, Support CD, I/O Shield - ATA 133 cable - 2 x SATA data cables (optional)

Detail Specification

Chipset Memory Expansion Slot Graphics

Audio LAN Rear Panel I/O

Connector

Product Brief

- Integrated AMD Radeon HD 4200 graphics, DX10.1 class iGPU, Shader Model 4.1, Max. shared memory 512MB - Supports ATI Hybrid CrossFireX, Built-in 128MB SidePort Memory - Three VGA Output options: D-Sub, DVI-D and HDMI - EuP Ready - Supports ASRock Instant Boot, Instant Flash, Smart BIOS, ASRock OC Tuner, Intelligent Energy Saver, OC DNA
Hardware Monitor Support CD Unique Feature BIOS Feature

OS Certifications

The specification is subject to change without notice. The brand and product names are trademarks of their respective companies. Any configuration other than original product specification is not guaranteed.

Accessories

EuP Ready Motherboard

EuP Ready Power Supply

EuP System

What is EuP?

EuP, stands for Energy Using Product, was a provision regulated by European Union to define the power consumption for the completed system. With the great quantity and the popularly using of the electrical products nowadays and the continuously increasing of the electrical products categories in the following 20 to 30 years, European Union decided to establish an effective strategy to solve the energy consumption problem. That is, according to EuP, the total AC power of the completed system shall be under 1.00W in off mode condition.

How to setup an EuP system?
To meet EuP standard, the EuP ready motherboard and the EuP ready power supply are required. As a motherboard vendor with eco-awareness, ASRock is the pioneer to develop EuP Ready motherboards based on the great efforts of our exceptional hardware design. According to Intel, the EuP ready power supply must meet the standard of 5v standby power efficiency is higher than 50% under 100 mA current consumption. For EuP ready power supply selection, please check with the power supply manufacturer for more details.
ASRock, Worldwide First EuP Ready Motherboard Manufacturer!
ASRock hereby proudly announced that we are the Worldwide First motherboard manufacturer to release EuP Ready motherboard to the market! With ASRock EuP Ready motherboard, you are confident to setup a system to pass the EuP standard.

OC DNA

Save your OC settings as a profile and share with friends. Try OC DNA now!

OC DNA Instruction

Step 1
Save your BIOS OC settings as User Default in BIOS OC Tweaker menu. (For example: we name this User Default setting as CPU_OC3.8GHz)

Step 2

Execute ASRock OC DNA under OS, you will find CPU_OC3.8GHz as User Profile 1.

Step 3

Press Save button to save the CPU_OC3.8GHz OC settings as a profile.

Step 4

Send the CPU_OC3.8GHz profile to other friends.

Step 5

When the friend receives your CPU_OC3.8GHz profile, he can press Load to load the CPU_OC3.8GHz profile in OC DNA.

Step 6

After that, the friend can enter into BIOS OC Tweaker menu to load the CPU_OC3.8GHz profile as his BIOS OC settings.
Now, you have successfully share your OC setting profile with your friends.
*The OC DNA works only when users use the same motherboard and BIOS version.
ATI Radeon HD4200 DirectX 10.1 Onboard Graphics
Key features of DirectX 10.1 include an updated shader model, improved anti-aliasing support, more flexible data access, and tighter specifications for better applicationcompatibility.
DirectX 10.1 Anti-Aliasing
Features Shader Model Separate per-MRT blend modes Pixel Coverage Masks Sample Pattern Selection Cube Map Arrays Gather4 VS Inputs Blending Filtering
DirectX No No No No No 16 INT8, FP16/32 FP16
DirectX 10.1 4.1 Yes Yes Yes Yes Yes 32 INT8/16, FP16/32 FP32
DirectX 10 Standard MSAA:Foliage edges do not get anti-aliased causes shimmering and crawling when they move
DirectX 10.1 Alpha Test MSAA:Foliage edges are smoothed and anti-aliased offers significant image quality improvement

Side port memory 128MB:

Boost performance up to 18.1% which is rarely seen on other 785G boards

side port memroy 128MB

ASRock 785G MB with Side Port Memory 128MB
3DMARK 06 Without side port memory With side port memory

Up to 18.1%

Performance Boost

18.1% 1142

GPU=900MHz, Sideport runs at DDR2 800, at performance setting

ASRock Instant Boot

ASRock Instant Boot is a new feature invented exclusively by ASRock. It can boot up system in an amazing speed, which is 10 times faster than traditional boot up. For home users or office PC users, ASRock Instant Boot can also guarantee a clean Windows OS, and consumed less power! For details:
http://www.asrock.com/feature/InstantBoot/index.asp * This function is applicable ONLY to single user that does not secure ID and Password to their systems. * The boot up time depends on the hardware configuration.
10 Times Faster, Only 4 Secs to Boot Up to Windows!

ASRock YouTube

http://tw.youtube.com/watch?v=BucIjXZVxXo

ASRock Instant Flash

ASRock Instant Flash is an exclusive and the most userfriendly BIOS flash utility developed by ASRock. It is embedded in Flash ROM which is used to update the system BIOS without having to enter operating systems like MS-DOS or Windows.

Features

Once executing ASRock Instant Flash, the utility will automatically detect all devices such as USB, hard disk or even floppy drive to find the exact BIOS for your system. Instead of giving you all BIOS in your devices, the Instant Flash just list BIOS versions that apply to your motherboard model only. For example, if you have many different BIOS of different motherboards saved in your devices, but you just need to flash your P45 motherboard, the Instant Flash will just list the P45 BIOS versions for you. This unique function allows you to easily select the suitable BIOS version instead of browsing through all data.
Instant Flash just list BIOS versions that apply to your motherboard model.
Click and start Flashing!

Simple!

Quick!