This document is the installation guide for the ASRock 990FX Extreme3 motherboard, including copyright notice, disclaimer, and specifications. It reminds users that the installation guide cannot be reproduced, transcribed, transmitted, or translated without written consent from ASRock Inc. The motherboard is suitable for backup purposes, and ASRock assumes no responsibility for any errors or omissions in the guide.
This guide helps you install the ASRock 990FX Extreme3 motherboard. It includes a quick‑start overview, package contents, and safety notices before you begin assembly.
The document also lists the board’s technical specifications, connector layout, BIOS features, and supported utilities, giving you the information needed for proper configuration and troubleshooting.
| Form Factor | ATX 12.0‑in x 8.6‑in |
|---|---|
| CPU Socket | Socket AM3+ (also supports AM3) |
| Northbridge Chipset | AMD 990FX |
| Southbridge Chipset | AMD SB950 |
| DDR3 DIMM Slots | 4 slots |
| Maximum Memory Capacity | 32 GB |
| Audio Codec | Realtek ALC892 |
| LAN Controller | Broadcom BCM57781 |
| SATA3 Connectors | 5 × 6.0 Gb/s ports |
It supports Socket AM3+ processors and is also compatible with Socket AM3 CPUs.
The board provides four DDR3 DIMM slots with a maximum system memory capacity of 32 GB.
The motherboard follows the ATX form factor measuring 12.0 in × 8.6 in.
The LAN controller is a Broadcom BCM57781 chip.