Thinkpads Forum

Hello, did it want to ask you, if there is some possibility of lowering the voltage x201? Since I have not found anything. To have if there is some way for mod bios or by means of software. Thank you in advance.

Not that i've seen reading up on the special kernel modules needed, seems Intel stopped it with the mid age C2D's.

IIRC, Intel locked down the voltage control for mobile processors after the Core 2 generation.

Linux-PHC (the out-of-tree kernel module that handles undervolting) notes that it works on Core i series up to the 2nd generation (Sandy Bridge), but there's no mention of mobile CPU support (the i3-500 series was mentioned as tested, but that's a desktop CPU).

Dekks wrote:Not that i've seen reading up on the special kernel modules needed, seems Intel stopped it with the mid age C2D's.

axur-delmeria wrote:IIRC, Intel locked down the voltage control for mobile processors after the Core 2 generation.

Linux-PHC (the out-of-tree kernel module that handles undervolting) notes that it works on Core i series up to the 2nd generation (Sandy Bridge), but there's no mention of mobile CPU support (the i3-500 series was mentioned as tested, but that's a desktop CPU).

So that suffers, since the truth with fewer voltage serious the laptop perfect for my.
Sorry for my english.

Doesn't the "Maximum processor state" under "processor power management" inside of the advanced options for your power plan control this?

SurrealMustard wrote:Doesn't the "Maximum processor state" under "processor power management" inside of the advanced options for your power plan control this?

This looks like a Windows feature. In any case, it only controls the processor's clock speed, and not the voltage IIRC.

In Windows you need specialized software like RMClock, Throttlestop, or IBM_ECW to play around with the CPU's core voltage, but as been mentioned already, voltage control is not accessible in mobile Core i series CPUs.