Why does core 3 always run cooler?

[Akagi]

When idle core 3 runs about 6°C cooler than cores 0, 1 and 2.

Right now my temperatures are 31°C, 32°C, 31°C, 25°C for example.

Is this normal?

My CPU and cooler setup are in my sig.

 

[Orcvader]

It's normal. No idea why it does it. Probably the core is full on idle while the other cores is doing very light background idle tasks? No idea...

 

[si9973]

From what I remember that's normal. Something about sensors sticking in one or more core. My 2550k does exactly the same, as did my Q9450 and Q6600 before that. I always keep an eye on the "hottest" core and gauge my temps off that.

 

[Phil2008]

Ah yeah core3 runs the coolest on my i5 2500k too, how odd.

 

[Rooster212]

Core #3 runs hottest on mine, tends to idle at least 2 degrees above the others!

 

[Akagi]

Ah yeah core3 runs the coolest on my i5 2500k too, how odd.

ah yeah but i mean core 3 as in the fourth core

cos it should be core 0, 1, 2 and 3

 

[MrMoonX]

my core 3 can be 6-10 higher at idle than all others then even out under load its weird on an 3570k

 

[JonJ678]

The thermometers are really unlikely to be accurate to within +/- 5 degrees at low temperature.

They're only used to throttle the chip when it gets around 100, so they're only remotely accurate around 100 degrees. There's a good chance the measurement is wrong by 2 or 3 degrees even at the design point. 60 degrees below that? You may as well guess room temperature + a bit with much the same confidence in the figure.

Core 3 might be cooler. Or it might be hotter. You just don't know. Nor does it matter.

 

[jimhaumman]

my core 3 can be 6-10 higher at idle than all others then even out under load its weird on an 3570k

the same here,how far did you oc it?
offset or manual voltage?