PM266A PRO/ PM266A is a Micro - ATX motherboard based on VIA® P4M266A & VT8235 chipset and supports Intel® Pentium® 4 processor with front-side bus up to 400/ 533 MHz.
This manual covers the VIA PM266A PRO motherboard, a Micro‑ATX board (225 mm × 244 mm) built around the VIA P4M266A northbridge and VT8235 southbridge chipsets. It supports Intel Pentium 4 processors in a Socket 478 package, up to 2 GB of DDR266/200 memory, and includes an AGP 2.0 graphics slot, three 32‑bit PCI slots, and four IDE connectors.
The document details connector layouts, power‑management features such as Phoenix‑Award BIOS, ACPI 2.0, and APM, as well as onboard audio (AC'97 codec with 5.1 channel support), USB 2.0 ports, and a VIA VT6103 Ethernet controller. Installation procedures, BIOS setup, and troubleshooting tips are provided in Chinese. This manual is written in Chinese.
| CPU socket | Socket 478 |
|---|---|
| Chipset | VIA P4M266A (northbridge) / VIA VT8235 (southbridge) |
| Form factor | Micro‑ATX (225 mm × 244 mm) |
| Graphics slot | AGP 2.0 (4X/2X) |
| PCI slots | Three 32‑bit PCI 2.2 slots |
| USB ports | Up to 6 USB 2.0 ports |
| LAN controller | VIA VT6103, 10/100 Mbps Ethernet |
| BIOS | Phoenix‑Award, supports APM and ACPI 2.0 |
It uses a Socket 478 for Intel Pentium 4 processors.
It includes an AGP 2.0 slot supporting 4X and 2X modes.
The board provides up to six USB 2.0 ports.