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Intel Xeon E5 Strange Temps

T

tkam

[H]ard|DCer of the Month - Dec. 2012
Joined
Dec 18, 2007
Messages
436
Really strange issue with my dual E5-2660 box look at the output below from one of the cpu's:

coretemp-isa-0001
Adapter: ISA adapter
Physical id 1: +65.0°C (high = +95.0°C, crit = +99.0°C)
Core 0: +45.0°C (high = +95.0°C, crit = +99.0°C)
Core 1: +41.0°C (high = +95.0°C, crit = +99.0°C)
Core 2: +65.0°C (high = +95.0°C, crit = +99.0°C)
Core 3: +64.0°C (high = +95.0°C, crit = +99.0°C)
Core 4: +40.0°C (high = +95.0°C, crit = +99.0°C)
Core 5: +48.0°C (high = +95.0°C, crit = +99.0°C)
Core 6: +49.0°C (high = +95.0°C, crit = +99.0°C)
Core 7: +37.0°C (high = +95.0°C, crit = +99.0°C)

Core 2 and Core 3 temps are what have me concerned. I've tried cleaning the cpu and re-applying the thermal paste and hsf a couple of times now. Doesn't seem to change anything - the temps aren't super high (the above temps are under full load).
 
What cooler are you using? That's odd to see C2 and C3 with those temps. Your heatsink completely covers the CPU?
 
running hyper 212's - this is a 2p box and the other cpu shows all the cores being within a few degrees of each other.
 
tkam said:
running hyper 212's - this is a 2p box and the other cpu shows all the cores being within a few degrees of each other.
Click to expand...

Check the base of the cooler and CPU for flatness. Put the cooler up towards the light and put the ruler on the base of the heatsink. Look for any light shining through between the heatsink and ruler. Do the same for the top of the CPU. It almost sounds like the cooler is not making proper contact with the CPU. It's also quite possible that the CPU top is convex or concave over cores 2 and 3. Try putting the CPU in the other socket as well.
 
freeloader1969 said:
It's also quite possible that the CPU top is convex or concave over cores 2 and 3. Try putting the CPU in the other socket as well.
Click to expand...

I actually did check the heatsink, even tried switching with the one on the other cpu. I'm thinking you might be onto something with cpu heat spreader not being totally flat. I guess I should be happy that the temps aren't really that high for being under full load and just live with it. I don't really have any interest in trying to get the heat spreader off the cpu and messing with it at all.
 
tkam said:
I actually did check the heatsink, even tried switching with the one on the other cpu. I'm thinking you might be onto something with cpu heat spreader not being totally flat. I guess I should be happy that the temps aren't really that high for being under full load and just live with it. I don't really have any interest in trying to get the heat spreader off the cpu and messing with it at all.
Click to expand...

Definitely don't do that. I would live with the temperature difference before I did that. :) Check the CPU the next time you have it out.
 
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