This page describes how to run coreboot on the ASUS P8H77-V.
+---------------------+----------------+ | Type | Value | +=====================+================+ | Socketed flash | yes | +---------------------+----------------+ | Model | W25Q64FVA1Q | +---------------------+----------------+ | Size | 8 MiB | +---------------------+----------------+ | Package | DIP-8 | +---------------------+----------------+ | Write protection | yes | +---------------------+----------------+ | Dual BIOS feature | no | +---------------------+----------------+ | Internal flashing | no | +---------------------+----------------+
The flash IC is located beside the SATA ports (circled):
The main SPI flash cannot be written because the vendor firmware disables BIOSWE and enables BLE/SMM_BWP flags in BIOS_CNTL for their latest BIOSes. An external programmer is required. You must flash standalone, flashing in-circuit doesn't work. The flash chip is socketed, so it's easy to remove and reflash.
+------------------+--------------------------------------------------+ | Northbridge | :doc:`../../northbridge/intel/sandybridge/index` | +------------------+--------------------------------------------------+ | Southbridge | bd82x6x | +------------------+--------------------------------------------------+ | CPU | model_206ax | +------------------+--------------------------------------------------+ | Super I/O | Nuvoton NCT6779D | +------------------+--------------------------------------------------+ | EC | None | +------------------+--------------------------------------------------+ | Coprocessor | Intel Management Engine | +------------------+--------------------------------------------------+