Hitting 90c on IBT with 2500k @ 4.2

Things change I've changed · 26 Sep 2011 at 17:32

CPU : i5 2500k @ 4.2 (cpu-z reads 1.312v on load)
M/B : P8Z68-V
Cooler : Arctic Cooling Freezer 7 Pro Rev 2 (AS5 compound)

As in title, I'm hitting 90c using the Maximum stress level setting in IBT which is a little worrying just wondering if that's ok?

I'm getting about 62c in Metro2033 and Crysis.

My voltages are set to 'auto' in the bios if that makes any difference.

AlfBaxter · 26 Sep 2011 at 17:36

That's pretty high. I get about 75 max running IBT on extreme setting, but then I run at a much lower VCore than you. Auto almost always overvolts SB chips. I can get my 2500K stable at 1.16V, 4.4GHz. For 4.2 I imagine you could go even lower. Try manually setting VCore, but be prepared to tweak some other settings as well (load-line calibration, for instance). IIRC when I tried OCing using Auto, my VCore was similar to yours under load.

Avathar77 · 26 Sep 2011 at 17:38

Did you take out the protective cover from the bottom of the CPU before installing it? If so try mounting the HSF again.

Things change I've changed · 26 Sep 2011 at 17:44

It's my old cooler from my Q9550 set-up so no plastic on there, have remounted twice already.

Going to try setting up the voltages manually although it's not something I understand fully tbh.

Deception · 26 Sep 2011 at 17:49

Have you replaced the paste each time you remounted?

Things change I've changed · 26 Sep 2011 at 17:59

Deception said:
Have you replaced the paste each time you remounted?

Yes, cleaned with lint free alcohol wipe.

So what temps are you guys getting then using maximum setting in IBT @ 4.2Ghz + ?

Deception · 26 Sep 2011 at 18:06

i just ran it with my i5 2500k @ 4.5ghz and it was topping out at 71-72c on the maximum burn test. This was using a Venomous X in push/pull config..

pgi947 · 26 Sep 2011 at 18:07

Not sure about 4.2, but at 4.8 at those same voltages I'm only hitting about 64c, albeit with a better cooler.

My hunch is that the mounting pins are no longer pulling the heatsink tight to the chip. I would look into a new cooler, ideally one with a back plate.

Things change I've changed · 26 Sep 2011 at 18:14

pgi947 said:
Not sure about 4.2, but at 4.8 at those same voltages I'm only hitting about 64c, albeit with a better cooler.

My hunch is that the mounting pins are no longer pulling the heatsink tight to the chip. I would look into a new cooler, ideally one with a back plate.

64c on maximum IBT @ 4.8!!, wow, I'm jelly tbh, what program are you using to monitor your temps?

Perhaps your right about the cooler, if I can't lower the temps I'll purchase another one.

I do have the retail cooler that came with my chip, do you think it's worth giving that a go?

pgi947 · 26 Sep 2011 at 18:21

Use a combination of realtemp, coretemp, and open HW monitor, my chips stunning upto 4.8, after that it requires a shed load of vcore and high temps

The highest I've seen it is one core at ~72c, though I seem to have a strange hot core, core01 at the most can be a good 9-12c higher than the other cores, thus raising the package temp. Gaming load sits around 50c.

You can get some decent air coolers now that are proven fine upto ~4.7ghz (and beyond) for around £30-40, it would be a worth while investment, the FP7 was fine in its day (I've had two and a FP13 pro) but is gradually being put in the shadows by other coolers.

Its about time Arctic Cooling came out with some new cooler designs.