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CPU stick at low speeds? Help!

dazzlaa

dazzlaa

dazzlaa

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Joined
30 Jan 2017
Posts
1,170
Location
Lincs
Hi all, hope you are all well and prepped for Christmas.

My lad has been complaining that his pc is acting weird. So I’ve come to have a look today and indeed, his CPU is hitting 100% in almost all circumstances (even desktop on occasion).
I looked in CPU-Z and it shows his core speed as 1196Mhz with a multiplier of 99.76. He has an i3 13100 which should tick over at 4.3Ghz so something is seriously amiss.
In bios, it shows the correct speed so something in Windows is affecting this I believe.
Any help, or suggestions welcome.

Thanks
 
I will add; he’s been installing all sorts of junk so a virus can’t be ruled out, but this result isn’t something I’ve ever come across.
 
Reinstalling windows now. It’s a 13th gen i3 so shouldn’t be getting throttled through windows updates.
 
So weirdly, I updated the bios and noticed that in the bios, it shows the appropriate speeds. But this does not translate into the Windows environment, even though that is now a fresh install.. wtf is going on!?
 
Yup, updated bios, reset windows completely and still the same outcome. I’d say the cpu is screwed but it shows up at normal speeds in MB bios. Pulling my hair out here.
 
Righhhht.

Ok it’s fixed, and I’m not 100% sure on the root cause, but it does look like windows a power scheme was causing this, EVEN THOUGH I had checked and double checked this, AND completely resinstalled Windows twice (keep my apps and files/delete everything)

What did eventually get the cpu back to life was an app called throttle stop. This allowed me to force the multiplier back onto the power plan, and this has persisted over a reboot.

This is after failures using the following; bios adjustments, bios updates, bios rollbacks, windows update, windows reinstall, intel Xtreme utility (multiplier greyed out).

So if anyone stumbles upon this in the future, hope this solution works for you!

Thanks for all the suggestions and help
Happy Christmas!
 
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