CPU was running at 85-96 C for several hours - is that OK or not?

slhardware

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Nov 24, 2012
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I've gotten a couple BSODs on my Windows 10 laptop recently, and I'm not sure if it's hardware or software related. Windows 10 did not generate any dump files or event logs for some reason.

So I've been running some benchmark programs just to make sure my system is stable. I ran Prime95 for a couple hours and the CPU temperature got up to the high 80s C. I also ran Aida64 for 4 hours and the CPU temperature ranged from 85 to 96 C.

Now I've been reading that you don't want the CPU to go over 80 C. Not sure if that's just for desktops or if it's also for laptop CPUs. Also, my CPU is a 4910MQ, which is a Haswell, and I've read that running Prime95 on a Haswell CPU might damage it? Just to be clear, I'm not overclocking anything, just using default settings and never touched the CPU.

Do you think running my CPU at those high temperatures for several hours was OK, or did I damage or shorten its lifespan?
 

nzalog

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Jan 2, 2017
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Most laptops are designed to handle not enough cooling. They will throttle the CPU speed down to keep it within what the CPU manufacturer considers acceptable temps. Sure it might impact it's overall life but I doubt that you'll want to use that CPU anywhere near the end of it's overall life since it will be obsolete by then. I would not stress about it.

Just make sure the fan works and dust out the fan and cooling system.