After installing Win10, CPU temperatures randomly spike for 1 second every few minutes

lauris3722

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Oct 1, 2010
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I'm not sure if this is actually win10 related, but it started happening right after the upgrade..

So, not matter what I do (watch youtube, play games or just use notepad++ with 1 firefox tab open), CPU temps occasionally spike up to critical levels and then fall down. At first I could not figure out why my PC was randomly shutting down, but then I started logging temps and noticed this weird behaviour, which I'm sure is the cause of shutdowns.

23:07:55 - 57c
23:07:56 - 88c (90c is bios-set limit)
23:07:57 - 79c

During the spike, CPU usage was 13%, but that does not seem to be related to spikes at all.

PC shuts down few times a day because of these spikes. I've noticed that it happens more often with Shadowplay turned on, altought I'm not sure how is that related. Fan is clean and the RPM's are smooth (fan does not appear to be damaged). Not overclocked (ever). Side question - can I increase the max temp to 100c? I'm a bit paranoid about this since that's how I burnt down my old PC, by reaching a temps of 130c with disabled auto-shutdown and dead fans which basically caused literal meltdown of MB and short circuit (shoutout to AMD for actually being able to run under 120c for some time and surviving 130c meltdown, that CPU is still running to this day).

Main specs:
Windows 10 Professional x64
Intel i7 4790k stock (with stock cooler)
Asus Maximus VII Hero
Corsair VS650
Running pretty much 24/7

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lauris3722

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Oct 1, 2010
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18,520
In case anyone from google or something searching for solution.. I could not find any. I downgraded back to Windows 8.1. My idle CPU temperatures went from ~45c to ~30c (And Prime95 Win10 - 100c, Win8 - 70c) and spikes stopped. Also, noticed the whole PC runs much faster and internet is 2x faster too. Screw you windows 10.