Intel, AMD, VIA & Freescale
CPU Microcode Repositories
Discussion Topic
This thread is meant as a place to discuss the CPU Microcode Repositories.
You can find all details and download links at the project's Github page.
Any issues or suggestions should be reported at the Github Issues page.
Reports of any microcodes not found at MC Extractor's database should be posted here.
2 Likes
Cool!
CPUID 206A6 not found
cpu206A0
I can see it!
as I know if the version is fixed the bug Meltdown and Specter?
Nice one, thanks!
Also, can I somehow package whole Intel microcodes into one microcode.dat file ? I need it because I use VMWare CPU Microcode Updater driver and it needs to have microcode.dat file so it can detect the correct microcode 
@ p82:
You’re right p82, thank you for your report. Due to an oversight in MC Extractor, a total of 6 Intel PRD microcodes were missing. That was because these were all "superseded" by equivalent "Latest" PRE ones and MCE would not pick anything. The latest MC Extractor v1.12.0 r50 has fixed the issue. So I’ve re-uploaded Intel CPU Microcode Repository Pack r1 with these added:
cpu506C8_plat01_ver00000010_2016-03-04_PRD_DE6EBB18
cpu206A6_plat12_ver00000028_2010-09-15_PRD_2B9BECC8
cpu10674_plat80_ver00000405_2007-07-20_PRD_735D9FE0
cpu10674_plat44_ver00000404_2007-06-08_PRD_F9DEC47D
cpu10674_plat10_ver00000404_2007-06-08_PRD_F9DEC4B1
cpu10674_plat01_ver00000404_2007-06-08_PRD_F9DEC4C0
I’ve also added the following at the start post to make the distinction clear:
@ maur0:
As far as I know, there is no official word from the vendors on which microcode versions try to mitigate Meltdown and Spectre. For Intel, it is a safe bet that everything from November 2017 or newer is what we’re looking for.
@ acid96:
Throughout the years there have actually existed 6 variants of ".dat" microcode update containers. MCE is capable of unpacking all 6 of them but not repack them. I don’t plan to add support for that these days, maybe in the near future. In the meantime, you can probably find some other tool online which does that.
Btw, I was trying to point UBU to these microcode bin-files but it has not reacted to them at all. How we supposed to use these files?
CPU microcode binaries are generic and not specific to any tool. UBU related questions should be asked at the UBU Discussion thread instead.
In the Intel Repository Pack I’ve found a newer microcode.bin for my platform but when I try to upgrade the bios using MMTool 3.26 for nonUEFI, I get an error message "This is not a valid CPU MicroCode Patch file"
Funny think is that other microcodes are working and when I extract the older version of same microcode from my bios and want insert back I get the same error message. with other codes frome the same bios don’t have this error (extract and insert).
This is the updated code for my CPU:
cpu206C2_plat03_ver0000001D_2015-08-04_PRD_F7DC758B.bin
Do you have any ideas or advice?
btw many thanks for this useful thread.
Hey @wasisdn , have a look over here: RE:CPU Microcode BIOS modding questions/problems (9), in Post #133 you’ll find a fixed version of the 206C2 microcode over there. I could successfully integrate it with MMTool and I am using it since then with a modified P6T WS Pro Bios on my P6T Deluxe V2 (cross-flashed).
@ms178 yes it works for me thank you very much. tomorrow I will test and flash the bios at my home pc with good old sabertooth x58/x5690
Edit: Flash already and it’s working thx
New microcode.dat
https://downloadcenter.intel.com/downloa…e-Data-File?v=t
PS Hey, my granddad IB-E 4930 received updated microcode: 428 => 42A!
Only 4 new cpu ucodes according to MCE…
cpu706A1_plat01_ver00000022_2017-12-26_PRD_CA264967.bin
cpu50654_platB7_ver0200003C_2017-12-08_PRD_A4059069.bin
cpu50662_plat10_ver00000014_2017-12-16_PRD_9161527A.bin
cpu50663_plat10_ver07000011_2017-12-16_PRD_B17C1102.bin
I counted 7 on my end:
cpu906EB_plat02_ver00000080_2018-01-04_PRD_D24EDB7F
cpu906EA_plat22_ver00000080_2018-01-04_PRD_84CABC68
cpu706A1_plat01_ver00000022_2017-12-26_PRD_CA264967
cpu50663_plat10_ver07000011_2017-12-16_PRD_B17C1102
cpu50662_plat10_ver00000014_2017-12-16_PRD_9161527A
cpu50654_platB7_ver0200003C_2017-12-08_PRD_A4059069
cpu306E4_platED_ver0000042A_2017-12-01_PRD_9B215C1F
Maybe I did something wrong when I extracted them. Anyways, more is better. Although I don’t see a newer Haswell update so far. Let’s hope they will push another update…
MC Extractor v1.13.0 says 8 new
!New_cpu306E4_platED_ver0000042A_2017-12-01_PRD_9B215C1F.bin
!New_cpu706A1_plat01_ver00000022_2017-12-26_PRD_CA264967.bin
!New_cpu806EA_platC0_ver00000080_2018-01-04_PRD_F6263DAE.bin
!New_cpu906EA_plat22_ver00000080_2018-01-04_PRD_84CABC68.bin
!New_cpu906EB_plat02_ver00000080_2018-01-04_PRD_D24EDB7F.bin
!New_cpu50654_platB7_ver0200003C_2017-12-08_PRD_A4059069.bin
!New_cpu50662_plat10_ver00000014_2017-12-16_PRD_9161527A.bin
!New_cpu50663_plat10_ver07000011_2017-12-16_PRD_B17C1102.bin
Ah yes, it seems that I had already found cpu806EA_platC0_ver00000080_2018-01-04_PRD_F6263DAE a few hours after releasing 1.13.0 r51 and before the new Intel .dat package. So in total, compared to DB r51, there are 8 new microcodes.
@plutomaniac
Btw MCE writes error when I run on that new micreocode.dat with option "-cont", but creates folder with bin-files.
What error exactly? I don’t see anything wrong with MCE 1.13.0 on my end.