This document is the user manual for VIA KT400A mainboard, which is suitable for AMD Socket A processor and has various features and characteristics.
This manual introduces the VIA KT400A mainboard, listing package contents and an overview of supported AMD Athlon™ Socket A processors. It describes the board’s form‑factor, connectors, optional features such as LAN and Serial ATA, and includes a system block diagram.
The document covers detailed installation procedures, jumper settings, memory configuration, BIOS setup options, driver installation, and a comprehensive POST code FAQ. Appendices provide additional utilities, BIOS update instructions, and low‑level hardware initialization details.
| CPU socket | Socket A (PGA 462) |
|---|---|
| System bus speed | 266/333 MHz |
| Supported ATA standards | Ultra ATA66/100/133 |
| Optional LAN | Available |
| Optional Serial ATA | Available |
Clear the CMOS or press the insert key to power on the system.