The PD440FX motherboard may have design defects or errors that may cause the product to deviate from published specifications. Current known errors are documented in the PD440FX Motherboard Specification Update. This product specification applies only to PD440FX motherboards with BIOS identifier 1.00.XX.DT0_.
The Intel PD440FX motherboard is an ATX‑form factor board designed for a single Pentium II processor (233 MHz or 266 MHz) with up to 256 MB of EDO memory and optional parity/ECC DRAM. It uses the Intel 82440FX PCI set, includes two fast IDE interfaces, two USB ports, and a National PC87307VUL Super I/O controller that provides floppy, parallel, serial, keyboard, mouse, infrared and audio functions.
The specification details the board’s expansion slots (two ISA, three PCI, one shared PCI/ISA), power requirements (minimum 200 W supply), voltage tolerances, thermal considerations, and regulatory compliance. It also describes BIOS features, jumper settings, error codes, and provides links to online support and documentation.
| Form factor | ATX |
|---|---|
| Supported processor | Single Pentium II 233 MHz or 266 MHz |
| Cache size | 256 KB or 512 KB second‑level cache |
| Maximum memory | 256 MB EDO DRAM (parity/ECC optional) |
| Chipset | Intel 82440FX PCI set |
| IDE interfaces | Two fast IDE interfaces (up to four IDE devices) |
| USB interfaces | Two universal serial bus (USB) ports |
| Expansion slots | 2 ISA, 3 PCI, 1 shared PCI/ISA |
| Minimum power supply | 200 W |
| Typical power consumption (DOS, APM disabled) | 58.7 W |
It uses the ATX form factor.
It supports a single Pentium II processor running at 233 MHz or 266 MHz.
The board provides two USB interfaces.
A power supply of at least 200 W is required.