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Cpu temp vs individual core temperature

Last response: in CPUs
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May 27, 2012 7:55:34 PM

should the temperature of my CPU be the average of all the core temperatures?

for example, my CPU is running at 75c, but the average of the cores is 30c

this is not running under load, the CPU is running at 1.2 Ghz and is at 3% load (i7 3930k)
a c 850 à CPUs
May 27, 2012 8:35:36 PM

75°C is high! What are you using to monitor and have you compared with BIOS?
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May 27, 2012 8:38:27 PM

Im using Speedfan and HWmoniter (both give the same reading)

when I reset and then look at the Bios its always sub 40, is there a way to look at the bios while windows is running?
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a c 850 à CPUs
May 27, 2012 8:44:46 PM

It does not drop 35° on a quick reboot! Check your cooler installation but I have a feeling the utilities are reading it wrong.
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a c 79 à CPUs
May 27, 2012 8:46:18 PM

cpu temp should be the temp of the 'package' cores should be the temps of the cores, so they should be loosely related, but not an average. 70+ seems very high, and does not seem right with the cores being 30C, can you use realtemp and do a sensor test, i'm concerned that the cores aren't measuring temps properly.
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May 27, 2012 8:57:22 PM

I installed RealTemp,

Im running it at the same time as Speedfan,

currently Speedfan is reading my CPU at 69c, Realtemp is reading 29 30 32 31 (there are 4 numbers, not sure what they mean)
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a c 79 à CPUs
May 27, 2012 9:12:22 PM

can you run the sensor test built into real temp, you'll need prime 95 as well.
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a c 185 à CPUs
May 27, 2012 9:24:42 PM

What does BIOS say?
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a c 185 à CPUs
May 27, 2012 9:37:27 PM

Pretty good ;) 
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May 27, 2012 9:44:17 PM

good, but does it look like its cooling properly? (also I have 6 cores, why are there only 4 numbers)

and if its stable, do I have room for overclocking?
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Best solution

a c 283 à CPUs
May 27, 2012 11:01:09 PM

Your temps are fine, SpeedFan is wrong on newer gen Intel CPU's on certain boards (mine included). It incorrectly detects the VRM sensor as the CPU sensor, for whatever reason. I really wish people would stop using it because I have to tell someone that daily.

Use HWMonitor and look at "Package" temp. That's the REAL CPU temp (besides the cores, of course).
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a c 79 à CPUs
May 28, 2012 6:16:32 AM

that looks ok, core 4 is not responding as well.

I forgot that speedfan isn't reading right, (it thinks my cores are at 15-20C, which is too low by far)
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May 28, 2012 9:00:17 AM

Best answer selected by bondy3.
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May 28, 2012 9:24:47 AM

13thmonkey said:
that looks ok, core 4 is not responding as well.

I forgot that speedfan isn't reading right, (it thinks my cores are at 15-20C, which is too low by far)


whats wrong with core 4?
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a c 79 à CPUs
May 28, 2012 5:39:56 PM

bondy3 said:
whats wrong with core 4?


it has a lower range, so it doesn't get as hot (stopping at 27 from tmax) and it starts off warmer, (55.9 from tmax)

Its not stuck however, but it could indicate its got better thermal contact, its not much though.
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May 28, 2012 6:54:59 PM

I just realized that there are 2 versions, a 4 core and a 6 core one, Im running the sensor test again on the 6 core version

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a c 79 à CPUs
May 28, 2012 7:04:10 PM

looks a bit better that time
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