ASROCK 939A785GMH/128M User manual

Detail Specification
Product Brief
CPU
Memory
Expansion Slot
Graphics
Audio
LAN
Rear Panel I/O
Connector
BIOS Feature
Support CD
Accessories
Hardware Monitor
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.
Chipset
Platform
- 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
- 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
- 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)
- 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)
AMD 785G + SB710 Chipsets
Unique Feature - 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.)
939A785GMH/128M
www.asrock.com
- 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
EuP
EuP
Ready

AMD 785G + SB710 Chipsets
939A785GMH/128M
www.asrock.com
EuP
EuP
Ready
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 mother-
board 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.
EuP Ready Motherboard EuP Ready Power Supply EuP System

AMD 785G + SB710 Chipsets
939A785GMH/128M
www.asrock.com
OC DNA
Save your OC settings as a profile and share with
friends. Try OC DNA now!
OC DNA Instruction
Step 1 Step 2
Step 3 Step 4
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”)
Press “Save” button to save the “CPU_OC3.8GHz” OC settings as
a profile.
Execute ASRock OC DNA under OS, you will find
“CPU_OC3.8GHz” as User Profile 1.
Send the “CPU_OC3.8GHz” profile to other friends.
Step 5 Step 6
When the friend receives your “CPU_OC3.8GHz” profile, he can
press “Load” to load the “CPU_OC3.8GHz” profile in OC DNA.
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.
939A785GMH/128M
939A785GMH/128M
939A785GMH/128M
*The OC DNA works only when users use the same motherboard and BIOS version.

AMD 785G + SB710 Chipsets
939A785GMH/128M
www.asrock.com
ATI Radeon®HD4200
DirectX 10.1 Onboard Graphics
Features DirectX®10 DirectX®10.1
Shader Model 4 4.1
Separate per-MRT
blend modes
Pixel Coverage
Masks
Sample Pattern
Selection
Cube Map Arrays
Gather4
VS Inputs 16 32
Blending INT8, FP16/32 INT8/16, FP16/32
Filtering FP16 FP32
No Yes
No Yes
No Yes
No Yes
No Yes
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
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
Up to 18.1%
Performance Boost
Without side
port memory
With side
port memory
3DMARK 06
967
1142
Performance Boost
GPU=900MHz, Sideport runs at DDR2 800, at performance setting
18.1%18.1%

AMD 785G + SB710 Chipsets
939A785GMH/128M
www.asrock.com
ASRock Instant Flash is an exclusive and the most user-
friendly BIOS flash utility developed by ASRock. It is embed-
ded in Flash ROM which is used to update the system BIOS
without having to enter operating systems like MS-DOS or
Windows.
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.
Features
ASRock Instant Flash
Instant Flash just list
BIOS versions that
apply to your
motherboard model.
Click and start
Flashing!
Simple!Simple! Quick!Quick!
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
10 Times Faster, Only 4 Secs to Boot Up to Windows!
ASRock YouTube
http://tw.youtube.com/watch?v=BucIjXZVxXo
* 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.