ASRock 939A785GMH Motherboard
This manual introduces the ASRock 939A785GMH motherboard, a Micro‑ATX board featuring an AMD 785G northbridge, AMD SB710 southbridge, and integrated Radeon HD 4200 graphics. It outlines the package contents, safety cautions, and the step‑by‑step hardware installation process.
The guide details the motherboard layout, rear panel connectors, BIOS features, and unique ASRock technologies such as Hybrid Booster, OC Tuner, and Intelligent Energy Saver. It also lists the technical specifications and provides troubleshooting information.
| 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 |
It uses a Socket 939 compatible with AMD Athlon 64FX, 64X2, and 64 processors.
The rear panel includes four ready‑to‑use USB 2.0 ports.
The board supports up to 4 GB of system memory.