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coreboot-kgpe-d16/Documentation/mainboard/asus/p8h61-m_pro.md

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ASUS P8H61-M Pro

This page describes how to run coreboot on the ASUS P8H61-M Pro.

Flashing coreboot

+---------------------+------------+
| Type                | Value      |
+=====================+============+
| Socketed flash      | yes        |
+---------------------+------------+
| Model               | W25Q32BV   |
+---------------------+------------+
| Size                | 4 MiB      |
+---------------------+------------+
| Package             | DIP-8      |
+---------------------+------------+
| Write protection    | no         |
+---------------------+------------+
| Dual BIOS feature   | no         |
+---------------------+------------+
| Internal flashing   | yes        |
+---------------------+------------+

The flash IC is located right next to one of the SATA ports:

Internal programming

The main SPI flash can be accessed using flashrom. By default, only the BIOS region of the flash is writable. If you wish to change any other region (Management Engine or flash descriptor), then an external programmer is required.

The following command may be used to flash coreboot:

$ sudo flashrom --noverify-all --ifd -i bios -p internal -w coreboot.rom

The use of --noverify-all is required since the Management Engine region is not readable even by the host.

Known issues

  • There is no automatic, OS-independent fan control. This is because the super I/O hardware monitor can only obtain valid CPU temperature readings from the PECI agent, whose complete initialisation is not publicly documented. The coretemp driver can still be used for accurate CPU temperature readings.

  • me_cleaner breaks LPC bus and attached components!

  • PS/2 mouse doesn't work

Untested

  • parallel port
  • EHCI debug
  • S/PDIF audio

Working

  • PS/2 keyboard
  • PCIe graphics
  • USB
  • Gigabit Ethernet
  • Integrated graphics
  • SATA
  • Serial port
  • hardware monitor (see Known issues for caveats)
  • front panel audio
  • Native raminit (2 x 2GB, DDR3-1333)
  • Native graphics init (libgfxinit)
  • Wake-on-LAN
  • TPM on TPM-header

Technology

+------------------+--------------------------------------------------+
| Northbridge      | :doc:`../../northbridge/intel/sandybridge/index` |
+------------------+--------------------------------------------------+
| Southbridge      | bd82x6x                                          |
+------------------+--------------------------------------------------+
| CPU              | model_206ax                                      |
+------------------+--------------------------------------------------+
| Super I/O        | Nuvoton NCT6776                                  |
+------------------+--------------------------------------------------+
| EC               | None                                             |
+------------------+--------------------------------------------------+
| Coprocessor      | Intel Management Engine                          |
+------------------+--------------------------------------------------+

Extra resources