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nstgc

Member

Registered: 2014-03-17

Posts: 393

Incorrect/Misleading wiki info regarding BIOS undervolting on Intel

According to the wiki (https://wiki.archlinux.org/title/Undervolting_CPU) "It is no longer possible to undervolt Intel processors with modern BIOSes and microcode...". Is this referring to software undervoltaging? Or is this saying that the offset settings specified in BIOS will be ignored?

edit: Might this be in reference to the Undervolt Protection that Intel pushed to BIOS and microcode? If so, it should be sufficient to find a motherboard (such as Asus's ROG line) which do not enable this feature, correct? Or is it a case of "absolutely does not ever work in Linux" because I'm seeing recent reports of people (presumably Windows people) undervolting their Raptor Lake CPUs?

edit2: https://www.reddit.com/r/intel/comments … ervolting/ That's from Lex, the Intel community manager. So, in general, Undervoltaging isn't impossible.

Last edited by nstgc (2023-10-23 01:31:43)

espritlibre

Member

Registered: 2022-12-15

Posts: 138

Re: Incorrect/Misleading wiki info regarding BIOS undervolting on Intel

it's impossible to undervolt intel cpus since 10th gen

nstgc

Member

Registered: 2014-03-17

Posts: 393

Re: Incorrect/Misleading wiki info regarding BIOS undervolting on Intel

it's impossible to undervolt intel cpus since 10th gen

Which is to say upon booting an OS other than Windows, the BIOS-assigned offsets are ignored? So undervolting Intel processes are functionally a Windows-only thing?

Or are you referring to the Undervolt Protection BIOS update which is OS agnostic? My understanding is that vendors can choose not to enable that. I've certainly been reading about plenty of people undervoltaging their recent Intel CPUs.

Last edited by nstgc (2023-10-22 19:39:19)

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,102

Re: Incorrect/Misleading wiki info regarding BIOS undervolting on Intel

So, in general, Undervoltaging isn't impossible.

Seems correct, that section should probably state something like :
On many newer intel processors undervolting is blocked, also motherboard/firmware vendors can disable it completely .
more info at https://www.reddit.com/r/intel/comments … ervolting/ and https://www.reddit.com/r/overclocking/c … rotection/

Last edited by Lone_Wolf (2023-10-23 09:33:41)

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espritlibre

Member

Registered: 2022-12-15

Posts: 138

Re: Incorrect/Misleading wiki info regarding BIOS undervolting on Intel

i misinterpret the developer of throttled, erpalma, wrong.
he wrote

===== Notice that undervolt is typically locked from 10th gen onwards! =====

so yeah it's locked, not impossible... sorry for the misinformation!

unfortunately lenovo doesn't expose such settings mentioned in the reddit threads in the firmware menu. if someone knows how to enter the hidden bios settings menu on a thinkpad p14s g3 12th gen intel, i'm all ears