Undervolting my Z690 - Intel Extreme Tuning Utility not allowing me to change the voltage offset.

[Crasje]

Hello,

My processor is running fairly warm  and I would like to try undervaulting to make the temperature less using XTU. First XTU would not open (giving a protection error) and I fixed that by enabling undervaulting protection.

Now XTU opens but I have a yellow lighting next to the volting option, where it wont work because undervaulting is protected. Seems like a catch-22, what am I doing wrong here?

[Crasje · Accepted solution]

i fixed it, contrary to some post I found, undervolting should be on disabled and you also have to disable Intel Virtualization Technology.

Without undervolting my system in the Cinebench test thermal throttles. What I did was undervolt with -0.050V*, which decreated my temperature so that I didn't thermal Throttle anymore.

Next was able to set my Performance Core Ratio from 48x to 49x to 51x. On the 51x setting Thermal Throttling happened on 1 core so I stopped. The system is stable.

My Cinebench score went from 24.907 to 26.448

Any tips on what else to do?

*this value I saw in videos on undervolting on YouTube

[Niggtre]

Yeah but how do I dissable undervolting protection if the option is NOT appearing?

[Crasje]

In the BIOS

[Niggtre]

You didn't even read my reply lmao

[Silent_Scone]

Which board?

You need to revert the CPU microcode.  This option may depend on the BIOS version currently installed.

[Niggtre]

Undervolting should not be tied to a specific board edition

[Silent_Scone]

Didn't say it was, and without looking not sure if it is.

Intel introduced undervolt protection.

[Niggtre]

Im on a rog strix B760 but I'm sure you are going to say that since its not a Z series I shouldn't be entitled to claim undervolt capabilities

[Silent_Scone]

Nobody is entitled to anything, so you're partly right.

The requirement is the 0x104 microcode. The switch should be available from BIOS 1205, maybe check under Tweakers Paradise.