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I don't buy that my core #3 is 12c hotter than core #1 @ Prime95 small FFT

post #1 of 16
Thread Starter 
I mean, the cores are right next to each other... on the same die, a couple millimeters away on the same piece of silicone. If ONE core went up 12 degrees, the others would go up about 10 degrees instantly wouldn't they?I know intel shows different temps for each core and they can be different etc however I want to know what I should consider as being my load temperature, should I pick inferior grade temp sensor 0 or inferior grade temp sensor 3?

Load temps during prime95 small FFT

CORE0: 63c
CORE1: 72c
CORE2: 75c
CORE3: 68c

I was thinking of averaging out the temp of the two hottest cores and calling that my load temp(as they are the only temps that are similar, surely this has some relevance), thoughts?

Disclaimer:I care not if you think my temps are high, I ONLY stress test with open window and it's at least -15c outside, which makes my load temps about 65c on hottest core after 8 hours of small FFT's - max temps after a week of daily normal use resulted in max temp on the hottest core being only 60c and if you think that is a high temp then you should move to a warmer country.
    
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post #2 of 16
Redo your thermal paste perhaps? Does seem odd having that big a gap between them but mine usually tend to be 5 degrees different give or take.

Use the highest temp as your reading. Better safe than sorry.
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post #3 of 16
Thread Starter 
Quote:
Originally Posted by [\/]Paris;12343179 
Redo your thermal paste perhaps? Does seem odd having that big a gap between them but mine usually tend to be 5 degrees different give or take.

Use the highest temp as your reading. Better safe than sorry.

You are right to suggest this, in fact I thought it was the same thing at first. But after 4 SIMPLE (dot in the middle) applications of IC7 I got identical temps every single time. Upon removal there were no signs of air bubbles and the spread was perfect, in fact there was little to no excess gushing out the sides.

Keep in mind I did have another 2500k in here for a week that ran MUCH cooler (10 degrees cooler) at the same voltage with the same cooler/paste/application method. Only difference is that one was at 4.7.

This 2500k just runs really hot. Trust me
Edited by Scorpion667 - 2/10/11 at 10:16pm
    
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post #4 of 16
Yeah I have that same problem with my I5 750. Huge gap between cores in prime.

I was told to redo the paste, but the fuirst time I did it spot on I believe an I just can't be bothered removing my VenomousX an putting it back on again. frown.gif
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post #5 of 16
Quote:
Originally Posted by Scorpion667;12343163 
I mean, the cores are right next to each other... on the same die, a couple millimeters away on the same piece of silicone. If ONE core went up 12 degrees, the others would go up about 10 degrees instantly wouldn't they?I know intel shows different temps for each core and they can be different etc however I want to know what I should consider as being my load temperature, should I pick inferior grade temp sensor 0 or inferior grade temp sensor 3?

Load temps during prime95 small FFT

CORE0: 63c
CORE1: 72c
CORE2: 75c
CORE3: 68c

I was thinking of averaging out the temp of the two hottest cores and calling that my load temp(as they are the only temps that are similar, surely this has some relevance), thoughts?

Disclaimer:I care not if you think my temps are high, I ONLY stress test with open window and it's at least -15c outside, which makes my load temps about 65c on hottest core after 8 hours of small FFT's - max temps after a week of daily normal use resulted in max temp on the hottest core being only 60c and if you think that is a high temp then you should move to a warmer country.

What program are you running?

Are it's settings calibrated right for the CPU you're using? Could be a setting is off I guess.
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post #6 of 16
http://www.arcticsilver.com/methods.html

This helps A LOT! I used to get temps like yours (cores way off from eachother) now the cores are always below 5c difference from eachother.
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post #7 of 16
probably fine.

My cores are like that, only core 2 is my dud. runs about 8c hotter than the coldest.
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post #8 of 16
It can happen. Mine run 5 degrees difference though. Reapply the thermal paste and see if anything changes. If not, then just leave it. You'll be fine.
    
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post #9 of 16
Thread Starter 
Quote:
Originally Posted by [\/]Paris;12343273 
What program are you running?

Are it's settings calibrated right for the CPU you're using? Could be a setting is off I guess.


Realtemp 3.67 (latest)

Also, I'm not new to this, I know how to apply thermal paste =)

Done over 200 paste applications on different builds
    
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post #10 of 16
Quote:
Originally Posted by Scorpion667;12343301 
Realtemp 3.67 (latest)

Also, I'm not new to this, I know how to apply thermal paste =)

Done over 200 paste applications on different builds

Then you should probably know that a 12c delta between the highest and lowest core is only slightly higher than average. thumb.gif
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