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DELETED_110867

Its normal to variation in temps between cores, but as you say your temps look to low.

Is your board running the latest BIOS.
 
Stuck sensors were pretty common on the 45nm quads. Had the same with my q9550, two cores at way over 10c lower than the other two. Some variation in temps though is perfectly normal on quad core cpu's.
 
The problem has re emerged with ivy bridge as well, one core on my 3570k reads as low as 12c, thats in a room that is at 22c ono.
 
My Q9650 at idle usage has 2 stuck sensors aswell on core 2 and core 3 reporting 38C even now lol, even though my room is pretty cold :p

Q9650coretemp_zps25701c80.png


When load is placed on my cpu, then these sensors work correctly displaying right core temps



@OP seems like your core 0 and core 2 have stuck sensors at idle
 
I wouldn't really worry about it especially at idle. The thermal sensers readouts are an approximation as the thermal sensors are calibrated to the shutdown temp. They also dont scale linearly and are more *accurate* as they get closer to the thermal shutdown threshold.

I doubt its much differennt now with the ivy cpu's either.
 
Ive owned five intel quads, all have had variations in core temps. Even after lapping, my q6600 had 8c between the cores.
 
arfoll said:
Why 0 & 2? They are the only ones reporting an actually possible temperature, I would have said the two others where suck.... But from the data below it looks as if you're correct!

Incidentally at load with cpu scaling disabled (2.8ghz) (mprime, 4threads, mode 3, 10 minutes) here are the temps:

Code: 
Core 0:       +24.0C  (high = +63.0C, crit = +85.0C)
Core 1:       +18.0C  (high = +63.0C, crit = +85.0C)
Core 2:       +24.0C  (high = +63.0C, crit = +85.0C)
Core 3:       +23.0C  (high = +63.0C, crit = +85.0C)

5C between core 1 & 3 still seems like a large temperature gap!

Oh and if you're wondering I'm watercooling this, hence why temps are so low, I am actually heating my house and currently in a tshirt so it can't be *that* cold here ;-)
Click to expand...

That's perfectly normal. Remember Q9550 is actually two E8300 combined, just as my Q9650 is two E8400 combined. So core 0&1 are on one die while core 2&3 are on the other die. So difference of 5C is perfectly fine. However your core0 and core2 are still not moving temp wise so these have stuck sensors ;)
 
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