Key facts
- Brand
- ASRock
- Model
- 939A785GMH
- Category
- Motherboard
- Industry
- Computers
- Documents
- 4
- Languages
- EN
- Last added
- 2012-05-02
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ASRock 939A785GMH/128M User Manual
This manual provides step‑by‑step instructions for installing the ASRock 939A785GMH/128M Micro ATX motherboard, including CPU, memory, and expansion cards. It also details the BIOS setup utility, overclocking features, and software support tools.
Additional sections cover hardware specifications, I/O panel layout, SATA and RAID configuration, and operating system installation guidance, along with safety warnings and regulatory information.
ASRock 939A785GMH specifications
| Form Factor | Micro ATX (9.6‑in x 8.6‑in) |
|---|---|
| CPU Socket | Socket 939 for AMD Athlon 64FX/64X2/64 processors |
| Chipset | Northbridge AMD 785G, Southbridge AMD SB710 |
| Memory Slots | 4 × DDR DIMM slots (Dual‑Channel) |
| Maximum Memory | 4 GB |
| Expansion Slots | 1 × PCI Express 2.0 x16, 1 × PCI Express 2.0 x1, 2 × PCI |
| Integrated Graphics | AMD Radeon HD 4200 (DX10.1, up to 1920×1200 HDMI) |
| LAN | Realtek RTL8111DL Gigabit Ethernet |
All ASRock 939A785GMH documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Mounting, wiring and first power-up. Read it before the hardware goes in.
Questions answered in these manuals
What CPU socket does the ASRock 939A785GMH motherboard use?
It uses a Socket 939 compatible with AMD Athlon 64FX, 64X2, and 64 processors.
How many USB 2.0 ports are provided on the rear panel?
The rear panel includes four ready‑to‑use USB 2.0 ports.
Which Windows operating systems are supported by the ASRock 939A785GMH motherboard?
The board supports Microsoft Windows 7/7 64‑bit, Vista/ Vista 64‑bit, Windows XP/XP 64‑bit, and XP Media Center.
How many SATA connectors does the motherboard provide?
It provides five SATA2 3.0 Gb/s connectors with RAID, NCQ, and Hot Plug support.
What CPU socket does the ASRock 9394785GMH/128M motherboard use?
It uses a Socket 939 that supports AMD Athlon™ 64FX, 64X2, and 64 processors.
How many DDR memory slots are available and what is the maximum memory?
The board provides four DDR DIMM slots with a maximum system memory capacity of 4 GB.