Is differing core temps a problem?

[Brok]

Just built my new rig

Q6600
Tuniq Tower cooler
Antec P182 case
Arctic Silver 5 paste

Looking at coretemp, cores 0 and 1 are 8 degrees hotter at idle and about 6 degrees hotter under load than cores 2 and 3.

I'm guessing this is either a bad seating of the heatsink, or a poor application of the AS5 (I'm new to this so have no point of reference as to whether I did a good/bad job with the paste)

Do I need to worry about this if I am keeping the temp of the hottest core below say 55?

If I do need to worry, is it possible to remove the Tuniq heatsink without taking the mb out if I didnt stick the baseplate to the motherboard, coz I really want to avoid this if possible due to all my cable routing having been done already.

For reference, its in a bloody cold room at the moment with the fans on their lowest setting. Currently I've just clocked it up to 2.8ghz at stock voltage

Idle temps

core 0 = 22
core 1 = 22
core 2 = 14
core 3 = 14

Prime95 with small FFTs

core 0 = 42
core 1 = 39
core 2 = 34
core 3 = 34

 

[Pneumonic]

You would expect some difference, general opinion is anything over 10c should be looked into.. so at that difference you might try lapping or resitting the HS to see if it makes a difference. Load tempurature wise I would be happy with anything up to 65c but really is down to preference... some say 60c some 70c

 

[rulocal]

72 degrees is often a maximum temp people quote. I use this as an upper limit when running Orthos, safe in the knowledge I won't get near that temp in normal use.