Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.
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After undervolting using XTU, how to make the changes permanent ?

L3gi0n
Beginner
‎01-27-2021 03:36 PM
2,196 Views
If I undervolt my laptop using XTU and then apply the changes, will the undervolt settings persist in the next boot or after shutting down and powering up ?
 
Does XTU have a service or something that applies the settings at each boot ?
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AlHill
Super User
‎01-27-2021 03:42 PM
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Undervolting is a bad thing and intel does not support it because of security issues:

https://securityboulevard.com/2019/12/plundervolt-a-new-intel-processor-undervolting-vulnerability/

Regarding XTU, what is your processor model number?

Doc (not an Intel employee or contractor)

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L3gi0n
Beginner
‎01-27-2021 03:55 PM
2,185 Views
In response to AlHill

i7-4800MQ

In response to AlHill
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AlHill
Super User
‎01-27-2021 04:01 PM
2,174 Views
In response to L3gi0n

Sorry, XTU does not support your processor.  XTU only supports X and K processors:

https://downloadcenter.intel.com/download/29183/Intel-Extreme-Tuning-Utility-Intel-XTU

Doc (not an Intel employee or contractor)

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