This is the user manual for Gigabyte GA-990FXA-UD3 motherboard, which introduces the hardware installation, BIOS program setting and driver installation
This manual covers the complete hardware installation process for the GA-990FXA-UD3 motherboard, including CPU, memory, expansion cards, SATA drives and front‑panel connectors. Detailed step‑by‑step instructions and diagrams help users assemble the system correctly.
It also explains BIOS configuration, driver installation, utility programs, audio and network settings, as well as troubleshooting tips and service contacts. The document is intended for end‑users and system builders who need to set up and maintain the board. This manual is written in Chinese.
| CPU socket | AM3 |
|---|---|
| Supported memory | DDR3 1066‑2000 MHz, dual‑channel |
| PCI Express slots | 2 × x16, 2 × x4, 1 × x1 |
| Chipset | AMD 990FX |
| SATA ports | 6 Gb/s SATA III |
| Network controller | Realtek RTL8111E |
| Audio codec | Realtek (integrated) |
The model number is GA-990FXA-UD3.
It supports an AM3 socket for AMD CPUs.
The board provides two PCI Express x16 slots.
The BIOS setup is described in the "BIOS 程序设定" section of the manual.