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corpnewt / CPUFriendFriend

Py script to walk frequency vectors and leverage acidanthera's CPUFriend ResourceConverter.
MIT License
156 stars 20 forks source link

Wrong TDP-down frequency? #21

Closed flo-at-work closed 2 months ago

flo-at-work commented 2 months ago

Hello,

On the Intel ARK website the TDP-down frequency of my CPU i5-5200U (https://ark.intel.com/content/www/us/en/ark/products/85212/intel-core-i5-5200u-processor-3m-cache-up-to-2-70-ghz.html) is 600MHz but the lowest value CPUFriendFriend script is allowing is 800MHz. Is it possible by any way to generate a kext with a LFM value lower than 800Mhz?

Thanks a lot!

corpnewt commented 2 months ago

The script does not restrict the value you can type in - it just lists examples. If you want 600MHz, when it asks, just type 0x06 or similar.

-CorpNewt

flo-at-work commented 2 months ago

Ok thanks,

So i've typed 0x06 and I think it has produced the right kext, but when I check with Intel Power Gadget it seems that the lowest value the CPU ever go is not lower than 800mhz (Core min is at 700mhz even if I generated the kext with LFM of 600mhz), even when the requested frequency is lower, like 680mhz (check the screenshot) the average frequency stays above 800mhz. Do you know by chance why macOS is not allowing the CPU to go lower than 800mhz? For information I'm using MacBookAir7,2 as SMBIOS.

Thanks again!

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