Forum - RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion

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#451 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Thu Jun 11, 2020 12:41 am (Last edited: Thu Jun 11, 2020 12:43 am)

Zitat von javanse im Beitrag #448
Zitat von tistou77 im Beitrag #446
On the LGA2066 (X299) platform with each new microcode, the performance collapses
I thought Intel had made an effort on that side...

What are your numbers to back that up? Running 7800X @ X299 myself, and i didn't noticed any perf problems after inserting 0x2006906 into my bios via UBU.

Performance has fallen across everything since these garbage "security issues" started years ago. Voltage requirements also shot way up for the same settings.. +40mv is now +80mv, cute. Only once in a while a good mc comes like 0xCA for 8700k but then gets quickly pushed back by more garbage like 0xD2 and D6.

Intel is doing a fascinating job.. and no its not "cpu degradation", verified this multiple times by putting back old mc + equal version of windows at the time so its not overridden, back to the usual much lower voltage for the same settings.

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#452 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Thu Jun 11, 2020 4:26 pm (Last edited: Thu Jun 11, 2020 4:47 pm)

For my 8700k D6 must be the Special Register Buffer Data Sampling and CrossTalk mitigation. 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.
No real benchmarks, sorry.

ASRock B550 Steel Legend + J5005-ITX

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#453 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Fri Jun 12, 2020 2:05 am

I've stopped updating at B4 for my 8700K. The CA microcode is not good at all, and at default settings, for me and a few other MSI users, it would drop the max uncore/ring multi from 44x to 43x. I just cannot see how Intel thinks this sort of stuff is legitimate vulnerability patching, there have been so many holes by now that they should refund the CPU value IMO.
Oh, and the overvolt/undervolt settings might be related to other BIOS settings, not specifically the microcode. For example, MSI confirmed that they changed a "CPU Lite Load", i.e. they raised it so CPUs with worse silicon quality can overclock, at the price of a higher stock voltage. That setting alone, buried in the BIOS, made me have to go from -0.080V to -0.150V to achieve the same-ish under load voltages.
But, yeah, the new microcodes, at least for CFL-S, are quite the horror. B4 is OK and offers protection up to MDS or so, without much of an impact outside NVMe benchmarking.

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#454 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Fri Jun 12, 2020 8:01 am

Update from lastest Windows 10 Insider 19645.1 Build .

+ Icelake U/Y 706E5 Microsoft team rolled back from 00000046 microcode to 00000032 microcode.

Windows 11 Build 22000.100 Core i9 7980XE 02006B06 MCU 2021-03-08 R6E 3403 BIOS TPM 2.0 Enabled VROC 7.5.0.1150+RST 18.31.1.5256 ME FW 11.12.86.1877 DV 2108.100.0.1053 64GB DDR4 3200 POSEIDON 1080i GTX NVIDIA Driver 471.41 WHQL 3TB SAMSUNG 970 EVO PLUS OMS Driver 18.34.0.1000 WHQL+i219 V OROM 0.1.00 BA 0.1.16 12.19.1.37 WHQL AQC 107n FW 3.1.121 AQC 2.2.3.0 WHQL CAM 4.25.0 Realtek HD 6.0.9161.1 WHQL SAMSUNG ODYSSEY G9 49 FW 1012.1 Windows 11 HDR1400 Certified

Core i7 1065G7 MCU 00000096 16GB LPDDR4X 5322 NVIDIA MX250 Game Ready 471.41 WHQL Intel 600p 1TB Wi Fi AX 201 22.50.1.1 WHQL Iris Plus 30.0.100.9684 WHQL AX201 BT 22.50.0.4 WHQL ME 2108.100.0.1053 WHQL Intel SGX PSW 2.13.100.2 WHQL

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#455 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Mon Jun 15, 2020 1:40 am

Bugs are reported in the latest batch of updates (April to June 2020).

Test with care. Shambolic!

https://tracker.debian.org/news/1152789/...o-oldoldstable/

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#456 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Mon Jun 15, 2020 10:41 am

More Official Info here
1. https://software.intel.com/security-soft...oduct-cpu-model

@tistou77 @vmanuelgm

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#457 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Tue Jun 16, 2020 2:28 pm (Last edited: Tue Jun 16, 2020 2:38 pm)

Zitat von Santa2017 im Beitrag #456
More Official Info here
1. https://software.intel.com/security-soft...oduct-cpu-model

Interesting table, these models are marked retired and no new mc is expected for them:
Sandy Bridge: 206A7 206D6 206D7
Ivy Bridge: 306A9 306E4 306E7

So for this moment that means:
cpu206A7_plat12_ver0000002F_2019-02-17_PRD_8D15DF31.bin
cpu206D6_plat6D_ver00000621_2020-03-04_PRD_7ED51E79.bin
cpu206D7_plat6D_ver0000071A_2020-03-24_PRD_AC8779F8.bin
cpu306A9_plat12_ver00000021_2019-02-13_PRD_A8DF9213.bin
cpu306E4_platED_ver0000042E_2019-03-14_PRD_3C222CE1.bin
cpu306E7_platED_ver00000715_2019-03-14_PRD_AD89AC0D.bin

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#458 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Tue Jun 16, 2020 3:27 pm

Yes, anything before Haswell (4th Gen) is EOL nowadays.

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#459 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Tue Jun 16, 2020 3:36 pm (Last edited: Tue Jun 16, 2020 3:38 pm)

Sandy bridge is not affected by Special Register Buffer Data Sampling vulnerability. So it not need microcode anyway.

i7 4790,rx580,16gb ram,x-fi titanium pcie,asrock anniversary z97

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#460 | RE: Intel, AMD, VIA & Freescale CPU Microcode Repositories Discussion datum

Tue Jun 16, 2020 8:12 pm (Last edited: Tue Jun 16, 2020 8:12 pm)

Warning regarding:

cpu406E3_platC0_ver000000DC_2020-04-27_PRD_459D4483
cpu506E3_plat36_ver000000DC_2020-04-27_PRD_65F0B5D1

Zitat
Intel identified an issue when OS loading microcode update revision 0xDC for cpuid 406E3 and 506E3. The microcode update has been reverted to revision 0xD6. This issue does not affect the microcode update when loaded from BIOS.

Source: https://github.com/intel/Intel-Linux-Pro...mment-644885826

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