# ASUS P8Z77-V

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 | yes
Dual BIOS feature | no
Internal flashing | no

The flash IC is located beside the SATA ports (circled):

### How to flash

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.

## Working

- PS/2 keyboard with SeaBIOS 1.14.0 and Debian GNU/Linux with kernel 5.10.28

- Integrated Ethernet NIC

- S3 Suspend to RAM

- USB2 on rear and front panel connectors

- USB3

- Integrated SATA

- CPU Temp sensors (tested PSensor on GNU/Linux)

- Native raminit

- Integrated graphics with libgfxinit (VGA/DVI-D/HDMI tested and working)

- PCIe in PCIe-16x slots

- Debug output from serial port

## Untested

- EHCI debugging

- S/PDIF audio

- PS/2 mouse

## Technology

Northbridge | Intel Sandy Bridge-specific documentation
Southbridge | bd82x6x
CPU | model_206ax
Super I/O | Nuvoton NCT6779D
EC | None
Coprocessor | Intel Management Engine

## Extra resources

- Flash chip datasheet