For this file, I will consider this file as the last release -cpu00610F01_ver0600111F_2018-03-05_AC55EB96.bin
As it is in the last build of Windows 10 (2004).
Differences with similar files start with Offset 0x43C.
I don’t know yet what to do with the second mCode.
I think to fix the version as the very first one so that UBU could not update it.
These make no sense to me. I thought about all possible cases and the only sort of logical explanation I can come up with is that these are either created randomly by someone for fun/research or they are sequential tests from AMD to some OEM to test if any of them fix a bug or similar. These extremely weird ones can be verified only if we know where they came from. Either way, they cannot be included in MCE and I’ll have to consider the ones we already have had for years as the proper/stable/final microcodes. Also, as I said before, the included Intel one is not a valid microcode so it must be ignored.
This is known and explained at the CPUMicrocodes repo. The AMD checksum at MCE is created for our own sanity/verification and unless AMD stops being idiots by not including a basic Checksum32, there is nothing more we can do.
There is nothing to do. These microcodes will not be included in MCE DB or Github Repository.
found this in som in som old hp BIOSes
cpu10674_plat01_ver00000403_2007-06-01_PRD_F328252B ---->> sp38121
cpu206D7_plat6D_ver0000070E_2013-01-25_PRD_120A3A6A---->> sp64701
cpu30678_plat02_ver00000825_2014-08-06_PRD_E2C91CAA---->> sp68623
!New_cpu10674_plat01_ver00000403_2007-06-01_PRD_F328252B.rar (4.12 KB)
!New_cpu206D7_plat6D_ver0000070E_2013-01-25_PRD_120A3A6A.rar (17.2 KB)
!New_cpu30678_plat02_ver00000825_2014-08-06_PRD_E2C91CAA.rar (51.2 KB)
A LOT of new in Windows 10 build 20201.
!New_cpu306F2_plat6F_ver00000044_2020-05-27_PRD_AE06DB92.bin
!New_cpu50653_plat97_ver01000159_2020-06-18_PRD_8A7CB578.bin
!New_cpu50654_platB7_ver02006A08_2020-06-16_PRD_8B444904.bin
!New_cpu50656_platBF_ver04003003_2020-06-18_PRD_FBE53D0B.bin
!New_cpu50657_platBF_ver05003003_2020-06-18_PRD_11302452.bin
!New_cpu806E9_plat10_ver000000DE_2020-05-27_PRD_08079D98.bin
!New_cpu806E9_platC0_ver000000DE_2020-05-27_PRD_86ED8490.bin
!New_cpu806EA_platC0_ver000000E0_2020-06-17_PRD_BCACEE16.bin
!New_cpu806EB_platD0_ver000000DE_2020-06-03_PRD_D36B66D0.bin
!New_cpu806EC_plat94_ver000000DE_2020-05-18_PRD_36F78CF0.bin
!New_cpu906E9_plat2A_ver000000DE_2020-05-26_PRD_224E7904.bin
!New_cpu906EA_plat22_ver000000DE_2020-05-25_PRD_76A2F81F.bin
!New_cpu906EB_plat02_ver000000DE_2020-05-25_PRD_DC6BE1EE.bin
!New_cpu906EC_plat22_ver000000DE_2020-06-03_PRD_9AFB648B.bin
!New_cpu906ED_plat22_ver000000DE_2020-05-24_PRD_BAD46B57.bin
!New_cpuA0652_plat20_ver000000DE_2020-06-07_PRD_1965B2DB.bin
!New_cpuA0660_plat80_ver000000DE_2020-06-07_PRD_D128A676.bin
!New_cpuA0661_plat80_ver000000DE_2020-06-07_PRD_A9FDC63D.bin
20201.zip (1.46 MB)
Nice, thank you very much kimballen and Marvin! 
Microsoft has published what they call the latest microcodes: https://support.microsoft.com/help/45581…crocode-updates
Funny thing is that the versions are several cycles behind!
New microcode from Windows build 20206:
cpu506F1_plat01_ver00000032_2020-03-07_PRD_6538E5EA.bin
cpu706A1_plat01_ver00000034_2020-06-09_PRD_FE4655B4.bin
cpu706A8_plat01_ver00000018_2020-06-09_PRD_1D9A5DFE.bin
cpu706E5_plat80_ver0000009E_2020-07-22_PRD_06DDA133.bin
cpuA0653_plat22_ver000000DE_2020-06-07_PRD_C7F3CE9A.bin
cpuA0655_plat22_ver000000DE_2020-06-07_PRD_A8A672BB.bin
20206.zip (449 KB)
Thank you, added to next database. Nothing new for AMD, right?
Nothing new for AMD in Windows 10 build 20206.
So many Intel µC updates smells like another Zombiespectre. 706A1 34 works nicely on my ASRock j5005. Still not managed to update the TXE 4 though 
Edit: Seems we have another tiny bit of speed back. My 8700k does again faster with the latest 906EA DE. I am at ~141x speed now. Related earlier quote of mine: "The first time since a while i see flac encoding with my setting became faster after D2! From ~133x to ~138x speed. Before all mitigations it was above 150x speed."
Intel cpu406E3_platC0_ver000000E0_2020-06-24_PRD_6C447853
cpu406E3_platC0_ver000000E0_2020-06-24_PRD_6C447853.rar (102 KB)
Nothing new in Windows 10 build 20211.
There Is c6 version for cpuA0655? This Is a jenuary version
Are these from places where people "mod" their headers to add support for other platforms or similar? I checked around 3 of them and they are not genuine.
cpu606E4_plat80_ver0000000C_2019-01-24_PRD_2AD22231 –> Actual CPUID is 706E4, copy of cpu706E4_plat80_ver0000000C_2019-01-24_PRD_2AD12231
cpu1067A_plat55_ver00000A0B_2010-09-28_PRD_B007E79F –> I’ve never seen Platform 55 before, very suspicious of modded header
cpu10676_plat11_ver0000060F_2010-09-29_PRD_8FE1A236 –> I’ve never seen Platform 11 before, very suspicious of modded header
I cannot trust any of them now to be actual microcodes.
fund some in old zymos, kontron, and fujitsu bioses
i can see if i find the original bios file and upload
orginal bioses from Fujitsu and HP with the strange AMD microcode i found earlier.
Fujitsu
https://mega.nz/file/SD4wgCwB#rpVRLEsn7b…pCkwUyK_PUmw5bc
HP
https://mega.nz/file/SG5AXKCD#MScCh_RHn-…WPbhX2FP2ePjLa4
Well now these weird/wrong AMD microcodes make sense. They are all false positives, "extracted" from Microsoft .cab archives. For example sp87071 > K06.cab. If you actually extract K06.cab and grab Rom.bin (or use K06_0277.BIN from DOS Flash folder), you will see the proper AMD microcodes. I have thus deleted that attachment to avoid anyone flashing these corrupted false positives.
What about the latest microcodes you posted? I don’t ask for sources normally but these look suspicious as well (modded, bad extraction, corruption etc).
I will se if I can fin the orginal sources for the last intel i posted
Intel cpu806C1_plat80_ver00000056_2020-08-11_PRD_AAAE250F
Intel cpu806D0_platC2_ver0000002E_2020-07-09_PRD_BD93D702
Intel cpu806C0_plat80_ver00000068_2020-04-02_PRD_DD7FF967
mc.rar (316 KB)