Not working with Gigabyte GA-B250M-D3H

[ghost]

As others have pointed out, for older - but similar motherboards, under the best circumstances, it reaches the point where the bios would start loading the OS, then gets stuck in a reboot loop.

The Q-flash utility has some sort of checksum, you can bypass that problem by using the modded efiflash utility, running under freedos, or by the FPT.exe or .efi tool available from Intel.

Flashrom does not detect the chipset with '-p internal'. I don't have an external tool to flash this. I will retry with custom bioses based on the beta release they have right now, since the actual stable bios with the latest ME updates has not been released for this motherboard.

My guess is that somebody would need to do find the chunk of bios code that runs just before loading the OS and do something nasty to it, as it is doing to us, but I am not able to do that. It might be a simple checksum or something more obscure.

Also worth noting, I am getting this from intelmetool:

Could not get RCBA address
Error reading RCBA

or "hardware unsupported by intelmetool, exiting", depending on version

relevant lspci: +-16.0 Intel Corporation 200 Series PCH CSME HECI #1 [8086:a2ba]

-------[ ME Analyzer v1.38.1 r109 ]-------

File:     bios (1/1)

Family:   CSE ME
Version:  11.8.50.3399
Release:  Production
Type:     Region, Extracted
SKU:      Consumer H
Rev:      D0
SVN:      3
VCN:      269
LBG:      No
PV:       Yes
Date:     2017-09-26
FIT Ver:  11.8.50.3399
FIT SKU:  PCH-H B250
Size:     0x1BF000
Platform: SPT/KBP/CNP
Latest:   No

Thank you all for the wonderful tools and the work that has gone into this! (I might change the motherboard soon...)

Also see issues for Gigabyte GA-Z170MX Gaming 5 and Gigabyte GA-Z170X-UD3, it seems it's affecting 100 and 200 series motherboards for now. https://github.com/corna/me_cleaner/issues/82 https://github.com/corna/me_cleaner/issues/68