This document is a user manual for the system board. The document contains information about the system board, which is protected by copyright. No part of it may be reproduced or used to make any transformation/adaptation without prior written permission from the copyright holders. The document is provided for informational purposes only. The manufacturer does not make any representations or warranties regarding the contents or use of this manual and specifically disclaims any express or implied warranties of merchantability or fitness for any particular purpose. The user assumes the entire risk of using this document or the results of its use. Furthermore, the manufacturer reserves the right to revise this document and make changes to its contents at any time without obligation to notify anyone or any entity. Copyright © 2007. All Rights Reserved.
This manual covers safety precautions, handling instructions, and warranty information for the DFI 790FX B Series system board. It explains how to protect the board from electrostatic discharge, outlines the required components for installation, and describes the warranty limitations.
Detailed hardware specifications are listed, including supported processors, memory types, expansion slots, and onboard controllers. The document also provides a layout diagram of the board and troubleshooting guidance for POST and LED indicators.
| CPU socket | Socket 940 AM2+ 65nm |
|---|---|
| Supported processors | AMD AM2+ (Phenom, Athlon, Sempron) |
| Memory slots | Four 240‑pin DDR2 DIMM sockets |
| Supported memory types | DDR2 667/800/1066 MHz, up to 8 GB, unbuffered non‑ECC x8/x16 |
| Maximum system memory | 8 GB |
| PCI Express slots | 3 × PCI‑Express Gen 2 x16 slots |
| PCI slots | 3 × PCI slots |
| LAN controller | Marvell 88E8053 Gigabit Ethernet |
| Audio codec | Realtek ALC885 8‑channel HD Audio |
| IDE connector | Supports up to two UltraDMA 33 Mbps hard drives |
The warranty does not cover damages or failures that arise from misuse, improper installation, or unauthorized repair.
The board supports AMD AM2+ processors such as Phenom, Athlon, and Sempron.