ASRock 939A785GMH/128M Motherboard English Installation Guide
This guide introduces the ASRock 9394785GMH/128M Micro ATX motherboard, detailing its components, connectors, and supported CPUs. It includes a package contents list, a full motherboard layout diagram, and descriptions of rear panel I/O ports.
The manual also covers BIOS features, integrated graphics and audio specifications, memory and expansion slot options, as well as overclocking tools, power‑saving features, and safety warnings. Installation steps, driver CD usage, and troubleshooting tips are provided for Windows XP, Vista, and Windows 7 systems.
| Form Factor | Micro ATX (9.6" x 8.6") |
|---|---|
| CPU Socket | Socket 939 for AMD Athlon™ 64FX/64X2/64 |
| Northbridge Chipset | AMD 785G |
| Southbridge Chipset | AMD SB710 |
| Memory Slots | 4 x DDR DIMM slots |
| Maximum Memory Capacity | 4 GB |
| PCI Express Slots | 1 x PCIe 2.0 x16, 1 x PCIe 2.0 x1 |
| Additional PCI Slots | 2 x PCI slots |
| Integrated Graphics | AMD Radeon HD 4200 |
| Audio Codec | Realtek ALC888 |
| LAN Controller | Realtek RTL8111 DL (Gigabit) |
| SATA Connectors | 5 x Serial ATAII 3.0 Gb/s |
| BIOS | 8 Mb AMI BIOS |
It uses a Socket 939 that supports AMD Athlon™ 64FX, 64X2, and 64 processors.
The board provides four DDR DIMM slots with a maximum system memory capacity of 4 GB.
It includes an integrated AMD Radeon HD 4200 graphics processor.
The LAN controller is a Realtek RTL8111 DL, providing 10/100/1000 Mb/s Gigabit Ethernet.