quad core temp differences ??

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6 Nov 2009
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65
hi
i checked up on the core temps of my quad cpu today and noticed core 1 and 3 are 10 degrees c lower than core 2 and 4 at idle is this normal

temps =

1/ 37c
2/ 27c
3/ 37c
4/ 27c

thanks
 
My idle temps are generally within 1-2c of each other but under IBT load, core 1 often goes +8c to +10c higher than the other 3. After reading a lot of threads, I've concluded that it isn't really an issue as long as they stay within acceptable temps. If you're really worried, pop the heatsink off and check the spread pattern of your thermal paste. Downside of that is that you'd then be best off cleaning it all up and re-applying.
 
There's always some variation but 10 degrees is a bit much.

What processor are we talking about?

this tbh.
10.C at idle does seem a lot, have you remounted the cooler recently?
i do get some difference between the cores on my Q6600, but only a few at idle and maybe 7-10 at load
 
As mentioned u do get a bit of vary like 1-3c at idle usually so i would try a refit, might be too much TIM.
 
thanks guys
cpu is quad extream qx9650

and temps definantly are 10 difference at 0 load

think i will reseat the water block

Don't bother re-seating the cpu cooler, its the load difference that is important, I had a Q9650 and some of the sensors would not go below a certain point on idle, stuck sensors at a certain temp. Anyone that has owned a Q9xxx chip would be able to tell you that the sensors are not always right. Google it and you will see what I mean. Stress the cpu to 100 load and see what the difference is on the cores and I bet you the one that is 10c higher will start to move later then the others, until it gets to above that stuck sensor temp it reads. Make sure to use core temp for the Q9 chip you have. Let us know your 100 load core temps for each core.
 
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Hi, extreme variations in core temps are often caused by poor distribution of thermal paste or poor cooler seating. This is because some cores are getting more contact with the cooler and are therefore getting more of their heat dissipated. The cooler needs perfectly even contact to maintain consistent temperatures across cores.

Regards
 
semajjames yes them load temps on the 4 cores looks a bit off but they are in the very good range still, I would try one more time to reseat that cooler. Do it in this way, clean the cpu and cooler from the old thermal paste and then use this method to apply the thermal paste and cooler.

1- use a pea sized 5.5mm sized amount in the dead centre of the CPU.

2- apply the cpu cooler and press down gently and evenly (don't be tempted to remove the cooler to check if the thermal paste has spread evenly or twist the cooler when doing this or it will add air bubbles to the thermal paste) and secure the cooler.

3- check load core temps at idle and load again and stick your results again mate.


Do make sure the cooler is on tight and secured correctly, if you can take a picture of the cooler installed may help us too.
 
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