Mixed readings on cpu temperatures (I7 4770k)

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J_4mes

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Dec 2, 2009
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I have a i7 4770k with a noctua nh-d14 and a zalman z11 case that has one intake fan, 2 side fans & 1 back fan.

I am monitoring the temperatures using HWMonitor and ''dual intelligent processors 4'' which is an RoG motherboard program. They read as follows :-

HWMonitor
CPU 29c idle / 46c load (this is the 1st of the 2 cpu readings HW monitor gives)
Core 0-3 28-33c idle / 62c load
Package 32c / 64c

Motherboard RoG program
cpu 28c idle // 37c load
motherboard idle 28c // 30c load
(all in degree's celcius and tested with prime95 for 10minutes)

Does anybody know why the readings are so sporadic? Which do I trust. I feel like the motherboard program should be pretty accurate, however it sounds mighty low for prime95 testing after 10minutes
 
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J_4mes

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Something I didn't notice is that on my 4 cores HWMonitor reads as the following :-

Core 0 : 60-65
Core 1 : 60-65
Core 2 : 60-65
Core 3 : 55-58

The first 3 cores seem to exchange their heat values interchangibly, if one dips the other rises but they equal the same heat range. My last core on the other hand reads 5-8c less than the rest.

I am also running speed fan and this is what it says :-
Core 0 : 45-50
Core 1 : 45-50
Core 2 : 45-50
Core 3 : 39-41

So now I have speed fan telling me temperatures closer to my RoG board telling me cpu is at 37-38, which is in line with that single core being lower temp than the rest by about 8c. This is confusing the hell out of me
 
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jb6684

jb6684

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Feb 20, 2011
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In a multi-core CPU, your cores are going to run at different temps.........

Your only concern should be with "the hottest" core as that's the only thing that will cause a problem ....

Which ever set of number you believe, NONE of them indicate any reason for concern in your case, if your running above 80C that's a bit too warm. But, even then the CPU will throttle it's voltage and clock speed to keep it's temperature below 105C (which is shut down temp)
 
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chikhar

chikhar

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There is a good reason for that. Sometimes the boost multipliers are set up differently. So 3 cores will run at x39 and the other at x37 for example. Check in the bios if this is the case
 
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