AMD processors do allow you to change the CPUID string

News and research about CPU microarchitecture and software optimization
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Neville C
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Joined: 2023-07-20, 15:44:42

AMD processors do allow you to change the CPUID string

Post by Neville C » 2023-07-20, 16:01:01

"...AMD processors do allow you to change the CPUID string. It's documented in AMD techdoc 20734...
...the demonstration application manipulates MSRs..."
http://f0dder.reteam.org/amdp4.htm

Updated link to AMD techdoc 20734:
https://kib.kiev.ua/x86docs/AMD/AMD-CPU ... 20734J.pdf

I do HOPE that this leads to an easily usable piece of software that universally puts an end to Intel's 'farting in church!'
Plz do post here if so.

agner
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Re: AMD processors do allow you to change the CPUID string

Post by agner » 2023-07-20, 17:17:54

Sorry, you can change the CPU name string, but not the "vendor string" that says AuthenticAMD. It is the vendor string that is checked by Intel software.

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