←back to thread

Intel-undervolt: CPU undervolting and throttling configuration tool for Linux

(github.com)
132 points cl3misch | 1 comments | 17 Jun 24 22:44 UTC | HN request time: 0s | source
Show context
chx ◴[18 Jun 24 01:44 UTC] No.40713262[source]▶
> my i7-8650U

those can but 10nm CPUs after Plundervolt can't undervolt , it's disabled from UEFI and not only there's no option to reenable it in the UI, the very EFI variable itself is write locked. I have an X1 Gen 4 (Intel 11th gen) and you just can't do it.

replies(4): >>40713587 #>>40714466 #>>40715686 #>>40718273 #
bytehowl ◴[18 Jun 24 05:57 UTC] No.40714466[source]▶
On my Lenovo Legion 5 Pro with i7-13700HX I can disable undervolting protection in stock UEFI. The only problem is that Windows virtualization features get disabled when undervolting is allowed, and I kind of need those.
replies(1): >>40719228 #
chx ◴[18 Jun 24 15:50 UTC] No.40719228[source]▶
That's good news, then they reenabled it after three generations of it being disabled.
replies(1): >>40723526 #
1. hmm37 ◴[19 Jun 24 00:35 UTC] No.40723526[source]▶
Perhaps it's just your laptop manufacturer. But people were able to undervolt on gen 11 by editing the EFI variables and then turning off virtualization.

https://old.reddit.com/r/AcerNitro/comments/qvznen/unlock_un...