General Discussions

[DB255]

I am wondering how can I use MSRs to modify settings. I have a script that runs on every boot and it utilises a software called msr-cmd.exe, I am on Windows 11 Home by the way. Here is part of the script:

 REM Disable Idle States (ensure CPU stays active)
msr-cmd.exe -A write 0xC001102B 0x00000000 0x00000000 

I see the MSR address here is 0xC001102B and it is to do with processor states. I am wondering how I can get that address for specific MSR settings because the PPR document for my processor (Ryzen 5 5600) does not outline what the specific addresses of the MSRs are (or I just cant see them)… I have attached the document here and any help would be greatly appreciated. Just a side question: If there are any MSRs relation to CPU instruction sets to do with setting it on AVX2 that would be helpful too (I heard this is something to do with the MKL settings (Math Kernel Library). Please and thanks! 🙂

Here is the link to the specific PPR document I am talking about: https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/programmer-references/56214-B0-...

[hirwani1]

Yeah, I understand that some errors might creep up during light usage, but I'm pretty confident with the stability testing done for the 5600. My 5800x3d (upgraded at the same time) shows no WHEA errors in almost two weeks now while running -30 all core. Maybe I got lucky with the silicon.

[amdintelnvidia]

I thought I got lucky... just set my 5600 to -30 all core. My 5900x doesn't come close to that. Maybe a late revision applied inside TSMC? I've had the 5600 for less than a year. Either that or AMD did a late code revision and I should try my 5900x again.

Or the PBO offsets no longer work... Type in any number and performance change is nul lol.