The GA-870A-UD3 AM3 motherboard is a product manufactured by Gigabyte Technology Co., Ltd. It supports AMD Phenom™ II processors/AMD Athlon™ II processors. This user manual provides detailed information on hardware installation, BIOS configuration, and more.
This manual covers the hardware installation of the GA-870A-UD3 motherboard, including CPU, fan, memory, and rear I/O connectors. Detailed diagrams and part lists help you verify that all components are correctly placed.
It also explains BIOS setup options, unique Gigabyte features such as Q‑Flash and EasyTune, and provides troubleshooting guidance. Contact information for Gigabyte support worldwide is included at the end of the document. This manual is written in Chinese.
| CPU Socket | AM3 |
|---|---|
| Supported Processors | AMD Phenom™ and AMD Athlon™ |
| Chipset | AMD 870 |
| Memory Type | DDR3 1866 MHz (over‑clockable) |
| Memory Channels | Dual Channel |
| PCI Express Slots | x16, x4, x1 |
| USB Ports | USB 3.0/2.0 |
| HyperTransport | 3.0 |
| Audio Codec | Realtek ALC |
BIOS updates and drivers are available from the Gigabyte website’s Download Center.
The package includes the motherboard, driver CD, user manual, installation guide, IDE cable, SATA cables, and a rear I/O shield.