Entry by realismbro285
Intel PR440FX

Intel PR440FX Revision 1.0


CPU support

Supported sockets:
  • Socket 8
Front Side Bus speed: 60/66 MHz
Supported architectures:
  • Intel Pentium II Overdrive Deschutes
  • Intel Pentium Pro - 1MB P6
  • Intel Pentium Pro - 256K P6
  • Intel Pentium Pro - 512K P6
Note! Some steppings might require updated BIOS/microcode to work properly.

System memory

  • Type: EDO 50/60/70 ns
    4x 168-pin DIMM
    ECC memory is optional
    Registered memory is optional
Max supported: 512.00 MB


Northbridge/MCH: Intel 440FX
Southbridge/ICH/PCH/MCP: Intel PIIX3
Crystal CS4236 audio IC
Intel 82557 for 100M operation

Power supply

Main board power: 20-pin ATX

Expansion slots

4 PCI slots
1 16-bit ISA slot

Rear I/O ports

PS/2 keyboard
PS/2 mouse
2x USB 1.0 (1.1 Mb/s)
1x DE-9 serial
1x DB-25 parallel
1x RJ-45
Audio connectors: Line out, Line in, Microphone in

Internal I/O headers

1x RS232 serial
1x parallel


2 IDE channels, up to 33 MB/s
Adaptec controlling 1 SCSI channel

Circuit board

ATX form factor
PCB manufactured in the year 1997


Does not support CDROM booting on IDE. If you want to boot CDROMs on this system, either use a bootable floppy, or use a SCSI device.




BIOS image

All files are checked before upload to make sure no harmful software is included. If your antivirus software gets triggered, it's most likely a false positive.


The info you find here might not be 100% correct. This is due to a couple of reasons:
  • I'm an idiot and I misread/misspelled something
  • I have a different board revision from yours
  • The production date/plant is different and they might have used slightly different components
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