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Intel D975XBX2 Bad Axe 2 - microcode patch
#1
Bios link : https://downloadcenter.intel.com/downloa...97520J-86A-

Ideal donor bioses for the microcode section would be : DG43RK https://downloadcenter.intel.com/downloa...G4310H-86A-
or : DP45SG https://downloadcenter.intel.com/downloa...P4510H-86A-

Cpuid : 06FB - Xeon E5335 - doesn't post
Cpuid : 1067A - Pentium E5400 - it posts - windows doesn't load - somehow works in linux.

I've read a lot about the intel bioses and the dreaded UEFI encapsulation and signature.
I've tried AndyP's tools - as soon as I've modded the module, it fails to pack the firmware.
I've tried using the uefitool (ubu) to extract only the body - fails at flash - or the entire module (I've tried to figure how to correct the checksums) - same result, fails to flash.
I've tried to insert a complete module, unmodified, from a donor bios with same size - no success.
I've tried to use the ITK, but that doesn't help.
I've tried to find the fitc tool - but the oldest I could find would be for 6 series chipset.
I've tried intel's fpt tool (dos, windows) to force flash the modded bios, but I guess I didn't find the right version (messages about this platform is not supported). No other flash tools seem to work.

I'm not very good at using the IDA disassembler - I couldn't follow CodeRush's instructions from his articles - partly due to google translate.
I don't have a programmer to flash the modded bios.

I'd like some opinions from people that spent some days on the same issues:

Are there any tools from intel (SDK) something to rebuild/edit the BIOS ?
Are there any tools that can force flash a modded bios on an intel board ?
Are there other ways to extract/repack the bios besides uefitool ? (repack being the painful part)
Is there a way to disable/bypass the signature check that fails with a modded bios ? Tried donovan's articles to no avail.
Is there a way to use a new set of keys to repack the intel bios ?

If anyone has anything that I could test, just fire away, I'm willing to go nuclear on this board.

This is a project that I've started as a tech geek, my life doesn't depend on it, but I seem I can't just put it to rest Wink
find
quote
#2
Have you any CPU for this motherboard that can boot Windows?
Post screenshots of first (CPU) & third (Mainboard) tabs of CPU-Z.
P.S. Chipset 975X support FSB=1066 Mhz maximum. So it's a reason why E5335 with FSB=1333 MHz doesn't post.
find
quote
#3
Here are the screenshots from cpu-z:

I know that officially it doesn't support 1333fsb, but I've seen some nice results with asus boards with the same chipset (past 400 - 1600fsb overclocked)
I wouldn't had tried otherwise.

       
find
quote
#4
You can try bsel mod to boot E5335 underclocked.
find
quote
#5
Please download latest version of BIOS (for DOS).
Unpack all files to USB stick with pure DOS and boot from it.
Then run:
iflash /md /pf BX2838P.BIO
find
quote
#6
(03-25-2016, 01:30 AM)DeathBringer Wrote: Please download latest version of BIOS (for DOS).
Unpack all files to USB stick with pure DOS and boot from it.
Then run:
iflash /md /pf BX2838P.BIO

I've tried the latest version (2838). The one in the capture (2813) is 2 versions back - I had a sligthly larger microcode module (64k vs 60k).
The results are the same.
find
quote
#7
Please flash latest version of BIOS form DOS by iflash.
And show result. I need it for modding.
P.S. Version 2809 has 68K microcode block.
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quote
#8
Updated (again) to the latest bios version from intel (2838)

       

Same results :

C2D E5300 (45nm) somehow works in linux (OS ucode update) - cpuid 06F6 - platform 01
Xeon E5335 - no post - cpuid 06FB - platform 40


I'm gonna dig for the bsel mod for the Xeon.
find
quote
#9
Did you flash by iflash?
What CPUs you have for socket 775(!) with CPUID=06Fx ?
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quote
#10
(03-25-2016, 03:33 AM)DeathBringer Wrote: Did you flash by iflash?
What CPUs you have for socket 775(!) with CPUID=06Fx ?

I stand corrected :

the e5300 is 1067Ah

I have the cpu in the pictures : C2D E6600 - 06F6
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quote


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