This page describes how to run coreboot on the ASUS P5Q desktop board.


The following things are working in this coreboot port:

  • PCI slots
  • PCI-e slots
  • Onboard Ethernet
  • USB
  • Onboard sound card
  • PS/2 keyboard
  • All 4 DIMM slots
  • S3 suspend and resume
  • Red SATA ports

The following things are still missing from this coreboot port:

  • PS/2 mouse support
  • PATA aka IDE (because of buggy IDE controller)
  • Fan control (will be working on 100% power)
  • TPM module (support not implemented)

The following things are untested on this coreboot port:

  • S/PDIF
  • CD Audio In
  • Floppy disk drive
  • FireWire: PCI device shows up and driver loads, no further test

Flashing coreboot

Type Value
Socketed flash Yes
Model MX25L8005
Size 1 MiB
Package Socketed DIP-8
Write protection No
Dual BIOS feature No
Internal flashing Yes

You can flash coreboot into your motherboard using this guide.


Northbridge Intel P45 (called x4x in coreboot code)
Southbridge Intel ICH10R (called i82801jx in coreboot code)
CPU (LGA775) Model f4x, f6x, 6fx, 1067x (Pentium 4, d, Core 2)
SuperIO Winbond W83667HG
Coprocessor No
Clockgen (CK505) ICS 9LPRS918JKLF