Such difference between core temps normal?

jimbob200521

Diamond Member
Apr 15, 2005
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See image, is a 10°+ difference between cores normal? Fresh install of a Corsair H55 liquid cooling setup on an I7 920 OC'd to 3.2ghz+ with fresh thermal paste that's been running Prime95 for about an hour.

Core_Temps.jpg
 

Ferzerp

Diamond Member
Oct 12, 1999
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That's really not a big difference.

That said, it is odd that you would have core 0 as your hottest core. Based on the die layout of that cpu, I'd expect 1 and 2 to be the hottest and 0 and 3 to be equal.
 

jimbob200521

Diamond Member
Apr 15, 2005
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That's really not a big difference.

That said, it is odd that you would have core 0 as your hottest core. Based on the die layout of that cpu, I'd expect 1 and 2 to be the hottest and 0 and 3 to be equal.

It was this way with my old cooler, as well. That was a heatpipe cooler and actually did about a good a job as this liquid setup does (but a bit more noisey). Just something I've always found odd.

And for the record, not matter the cooler I've had, core 0 has always been the hottest.
 

Ferzerp

Diamond Member
Oct 12, 1999
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Hmm. I'm not sure then. I wouldn't really be concerned though 10F really isn't a lot.
 
Last edited:

Ken g6

Programming Moderator, Elite Member
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Dec 11, 1999
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It would look smaller in degrees C, which is the usual way to show it.
 

Burpo

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Sep 10, 2013
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Crank it up, set bclk @ 180 & give it some more juice. It'll warm up :D
 

jimbob200521

Diamond Member
Apr 15, 2005
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Crank it up, set bclk @ 180 & give it some more juice. It'll warm up :D

Ehhh for right now I think I'll be ok at 3.4ghz, Cities Skylines plays much better with the 6gb of RAM I just added that it would with another 200mhz. Although....no, no I'm good.
 

slyphnier

Junior Member
May 14, 2009
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It was this way with my old cooler, as well. That was a heatpipe cooler and actually did about a good a job as this liquid setup does (but a bit more noisey). Just something I've always found odd.

And for the record, not matter the cooler I've had, core 0 has always been the hottest.

like everyone said, its normal
and yes core0 will be the hottest all the time

think it as primary/start core
cmiiw, even if os/software support multicore (multi threads), core0 will remain as prime core before using other core
i think it related to how programing work
i dont know very detail about this, maybe other can explain better