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One core 10C+ lower than the rest

post #1 of 5
Thread Starter 
Uneven pressure? bubbles in thermal paste? I used MX-4 and spread a thin layer with a Hot Topic card. Those temps don't even seem right. I ran a i5-750 @ 4.2ghz @ 1.4v and it didn't get into the high 80s on this loop. I feel they should all be in the 70s. I tried to adjust the mounting pressure on one side but it did not change the temp.

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post #2 of 5
Don't mention that you shop at hot topic, lol.

That core may have better contact with the IHS, so you'll inherently get better temps with one core. Generally the temperatures are different, 10c is a little bit much but not really something to worry about imo.
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post #3 of 5
Some cpus run hotter than others, you just may have a hot running one there. One core frequently runs cooler than others with multi core chips, not usually 10°...
As long as it's performance is equal to the others I wouldn't worry about it running unusually cooler though. Have you already tried a reseat with a different TIM application method like the line or small blob in the center? I usually do an X on the cpu.
    
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post #4 of 5
Thread Starter 

The idle temps are within 3C.

I might have air bubbles too according to this.

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post #5 of 5
too much tim

i wouldn't expect all 4 cores to be the exact same temp.. but 10c is unreasonable. A 5-6c spread is not abnormal. You probably have a bunch of tim built up on the one side.

If I were you, i'd take it off, clean it really well, do not get finger prints on it, put a very small dab right in the center. like 1/2 the size of a pea. not much at all, much less than you'd expect. in my experience that works the best.. the spreading method uses way too much and its always uneven.

Also may want to use a straightedge to check your cpu for straightness... mine is definately NOT straight.
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