@SoniX

I think i can help you with that one.

To find something with the -search command, you must add "000" before your CPUID #. Exemple: 206C2 must be entered as 000206C2 to generate a result.

I also noted that you must pay special attention to the letters. Exemple: 000206C2 will generate a result but 000206c2 will not.

Hope that help you.

hello people! i'm new here and i don't really understand how to use this tool, but i can see that there's a newer microcode for my motherboard / cpu. i have gigabyte ga-x58a-ud3r rev 1.0 mb + xeon w3670 cpu. from what i've been able to find on the internet this cpu should support CPUID (https://twitter.com/InstLatX64/status/950813380130082816). but it doesn't seem so when i look at aida64. i don't think gigabyte will release anything for a mobo this old. and that would be really bad news for me as this system still kicks some ass (running @ 4.2GHz). i am thinking that maybe updating the microcode would help. or am i wrong? and if not then how do i do that? :) can someone please help me out? :) what i'm trying to do is of course make it spectre and meltdown proof. i'm using this bios http://www.jzelectronic.de/jz2/jzb/x58aud3rf8b.exe. also here's some info from aida64:

CPUID Properties
CPUID Manufacturer GenuineIntel
CPUID CPU Name Intel(R) Xeon(R) CPU W3670 @ 3.20GHz
CPUID Revision 000206C2h
IA Brand ID 00h (Unknown)
Platform ID 47h / MC 01h (LGA1366)
Microcode Update Revision 14h
SMT / CMP Units 2 / 6
Tjmax Temperature 101 °C (214 °F)
CPU Thermal Design Power 130 W
CPU Thermal Design Current 110 A
Max Turbo Boost Multipliers 1C: 26x, 2C: 26x, 3C: 25x, 4C: 25x, 5C: 25x, 6C: 25x

Thaanks!

Zitat von plutomaniac im Beitrag #153

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As Phoenix48 said, all 8 digits and case sensitive. From command line, you can type directly -search CPUID (-skip implied).

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I don't understand where the CPU microcodes are taken.

I have an Intel i5-460M CPU (CPUID 20655).
In the latest microcode update from Intel microcode-20180108.tgz there is the version 4 of the microcode for the above CPU

cpu20655_plat92_ver00000004_2013-06-28_PRD_3FACC649

but in the @plutomaniac microcode database https://github.com/platomav/CPUMicrocodes there is a newer one (version 5)

cpu20655_plat92_ver00000005_2015-06-30_PRD_470D62E6.bin

so... I'd like to know where it was taken.

Could somebody please clarify this point?

Thank you.

it's probably taken straight from another bios as i cannot find any microcodes that would fit my motherboard if i download microcodes from intel site but can find few in plutomaniacs microcode database. there would be no point to have this database if you could just obtain them from intel. just my guess :)

@plutomaniac
hello, i was wondering whats the point of CPU micro-code ? i'm very interested on these topics, i have a ryzen cpu 1600. Also I started to get interest in Intel compiler patch that remove genuine codes over APP/Games resulting in better performance for AMD cpu, do you know anything about that? thanks

I think you are right, @paskevic

However, I just wonder how can I find out what is the source of a microcode in the database, how can I trust it and if it's possible to find the "changelog" (or fixes and enhancements) of a certain microcode version.

In my case, there is e big difference, judging by the size of the file, between the microcode v. 5 in the database (about 45kB) and the one v. 4 in microcode-20180108.tgz (only about 3 kB).

Zitat von x58haze im Beitrag #158

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@plutomaniac
I was wondering what's the point of CPU micro-code?

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Zitat von andreaerdna im Beitrag #159

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1. However, I just wonder how can I find out what is the source of a microcode in the database,
2. how can I trust it and if it's possible to find the "changelog" (or fixes and enhancements) of a certain microcode version.
3. In my case, there is a big difference, judging by the size of the file, between the microcode v. 5 in the database (about 45kB) and the one v. 4 in microcode-20180108.tgz (only about 3 kB).

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Does anyone have latest version of these microcodes? I will update my collection.

+-------+-----------------------+---------+------------+---------+--------+----------+---------+--------+
| 1067A |       44 [2, 6]       |   A0B   | 2010-09-28 |   PRD   | 0x2000 | B007E7B0 | 0xB6020 |   No   |
+-------+-----------------------+---------+------------+---------+--------+----------+---------+--------+
| 10671 |         04 [2]        |   106   | 2007-03-29 |   PRD   | 0x1000 | 80731BA9 | 0xBB020 |   No   |
+-------+-----------------------+---------+------------+---------+--------+----------+---------+--------+
| 10671 |         40 [6]        |   106   | 2007-03-29 |   PRD   | 0x1000 | 80731B6D | 0xBD020 |   No   |
+-------+-----------------------+---------+------------+---------+--------+----------+---------+--------+
| 10674 |         04 [2]        |   404   | 2007-06-08 |   PRD   | 0x1000 | F9DEC4BD | 0xBF020 |   No   |
+-------+-----------------------+---------+------------+---------+--------+----------+---------+--------+
| 10674 |         40 [6]        |   404   | 2007-06-08 |   PRD   | 0x1000 | F9DEC481 | 0xC1020 |   No   |
+-------+-----------------------+---------+------------+---------+--------+----------+---------+--------+
 
 

//edit: uploaded new microcodes extracted from mcupdate_GenuineIntel.dll (W10 1709 20th December 2017)

!New_cpu50671_plat78_ver000001AE_2017-09-08_PRD_45B014CA.bin
!New_cpu80650_plat08_ver0000000E_2017-09-13_PRD_BC0B9463.bin
 

Thank you @Gorbush for clarification.

Zitat von Gorbush im Beitrag #160

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Ad. 3. You probably compare binary file (bin) to hexadecimal (dat).

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!New_cpu50654_platB7_ver02000043_2018-01-26_PRD_4840163E