This page describes how to run coreboot on the [ASUS P8H77-V].

Flashing coreboot

Type Value
Socketed flash yes
Model W25Q64FVA1Q
Size 8 MiB
Package DIP-8
Write protection no
Dual BIOS feature no
Internal flashing yes

The flash IC is located beside the SATA ports (circled): ../../_images/p8c_ws.jpg

How to flash

Unlike ordinary desktop boards, the BIOS version 3202 of ASUS P8C WS does not apply any write protection, so the main SPI flash can be accessed using flashrom, and the whole flash is writable.

The following command may be used to flash coreboot. (To do so, linux kernel should be started with iomem=relaxed)

# flashrom -p internal -w coreboot.rom

The flash chip is a socketed DIP-8 SPI flash, so it’s also easy to remove and flash externally.


  • Intel Xeon E3-1225 V2 with 4 M391B1G73BH0-YK0 UDIMMs, ECC confirmed active
  • PS/2 keyboard with SeaBIOS 1.14.0 and Debian GNU/Linux with kernel 5.10.40
  • Both Onboard NIC
  • S3 Suspend to RAM
  • USB2 on rear and front panel connectors
  • USB3
  • Integrated SATA
  • CPU Temp sensors (tested PSensor on GNU/Linux)
  • LPC TPM on TPM-header (tested tpm-tools with TPM 1.2 Infineon SLB9635TT12)
  • Native raminit
  • Integrated graphics with libgfxinit (both analog and digital output from DVI-I)
  • Nvidia Quadro 600 in all PCIe-16x slots
  • Compex WLM200NX (Qualcomm Atheros AR9220) in PCI slot
  • Onboard IEEE1394 controller under PCI bus
  • Debug output from serial port


  • EHCI debugging
  • S/PDIF audio
  • PS/2 mouse
  • LPT port


Northbridge Intel Sandy Bridge-specific documentation
Southbridge bd82x6x
CPU model_206ax
Super I/O Nuvoton NCT6776F
EC None
Coprocessor Intel Management Engine

Extra resources