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Old 10-05-2012, 07:16 PM   #1 (permalink)
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Default Why don't all my cpu cores cool evenly

When running prime95 for a few minutes on my core i7 computer, all my cores don't have the same temperatures. Core 1 will stay at around around 72C, core 2 will stay at around 80C, core 3 stay at around 84C and core 4 will stay at around 78C.

Its like that on my Pentium D computer too. When running prime95, core 2 seems to stay cooler than core 1 by ~6 degrees C.

Why does it do that? It's not causing any problems but why are some cores cooled off better than others?
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Old 10-05-2012, 10:22 PM   #2 (permalink)
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Default Re: Why don't all my cpu cores cool evenly

IHS contact to the physical cores, heatsink contact to the IHS, and sensors differential all play a role in how accurate the temps are. Because of this, they will all be different too.
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Old 10-06-2012, 11:40 AM   #3 (permalink)
 
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Default Re: Why don't all my cpu cores cool evenly

Plus or minus 5C is a pretty normal spread.
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