3570k, temps weird on one core.

[The Package]

I've noticed something strange when I look at the temp on Core #2


It's quite a large difference than say Core #3. These are obviously idle temperatures, and under full load the temps all line up within a few degrees of each other. It's just at idle where I get this variance. Anyone have any idea why?

[gingerbee]

wow what are you cooling with those are looking off unless your on water and your house really cold those temps seem off check realtemp and the temp probes only work 100% closer to load so ramp her up

[The Package]

Originally Posted by gingerbee

wow what are you cooling with those are looking off unless your on water and your house really cold those temps seem off check realtemp

Realtemp and the Bios read the same temperatures.

I'm running an A70 with both fans in a push configuration, and a third fan blowing through the heatsink to 2 exhaust fans. It maximizes static pressure inside the heatsink for improved cooling.

The cores hit just over 50 Celcius in Intel Burn test at 4.2 Ghz, 1.15 volts in the bios. I'm starting to think that the CPU die is so small, and the direct touch heatpipes so large that that core is somehow hitting a dead zone in the base of the heatsink. I may try to flip it 90 degrees and see if that helps when I get my new Cougar fans on Tuesday.

[gingerbee]

wow @1.5 that seems crazy low for that chip i think the bois might be screwy on ur temps but without a thermal ir temp reader you wont know hint hint do you happen to have one.

just a hint. That chip chould only need like 1.0 v to get to 4.2 so your 1.5 v is kinda nuts unless your going way up which you should

[The Package]

Originally Posted by gingerbee

wow @1.5 that seems crazy low for that chip i think the bois might be screwy on ur temps but without a thermal ir temp reader you wont know hint hint do you happen to have one.

just a hint. That chip chould only need like 1.0 v to get to 4.2 so your 1.5 v is kinda nuts unless your going way up which you should

Sorry, I meant 1.15. This damn dyslexia is brutal.

That's real temp for comparison. The max temps were from a 10 pass of intel burn test.

[Rasparthe]

I've seen 6-8C spreads before but 13C is alot. I would remount your cooler just to make sure the TIM is spread evenly and it is pressing on each of the cores. 13 spread seems excessive

[gingerbee]

oh ok 1.15 is much better but still that's a big spread from that chips

[The Package]

Originally Posted by Rasparthe

I've seen 6-8C spreads before but 13C is alot. I would remount your cooler just to make sure the TIM is spread evenly and it is pressing on each of the cores. 13 spread seems excessive

If you look at how small the actual CPU die is and how absurdly large the contact area on the A70 is, I'm more inclined to think it's just in a small dead spot that doesn't start to heat up until I apply some load. This was always my main beef with direct touch heatsinks. I reseated, and have the same result. 13 degrees is probably the largest spread it gets to, usually just a 6-7 spread.

I'm going to try to rotate the heatsink 90 degrees to see if I can get more contact with the die. I'll report back once I complete it.

Edit: Rotating did nothing.

[Stosh]

I wonder if that core is getting hammered by some particular application.

[Eldonko]

I wouldnt worry about it. The cores are arranged in a line so it is only natural that the core on the end will be a bit cooler.