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i5-2500k OC Issue

post #1 of 17
Thread Starter 
For a couple years now I've been running at 4.2Ghz with 1.285v with no issues at all. 50-55C Under load. I recently decided I would bump it up to 4.4 and oc my ram. When I bumped it up to 4.4 I changed the voltage to 1.300 and the temps in the bios read at 90C. I originally thought it was my ram causing some issues but then again today I decided to try for 4.4 again without the ram changes and I got the same 90+C reading from bios and Speedfan. I reset back to 4.2 and 1.285 and it has stable temps again.

Here is a CPU-Z Validation at 4.2GHz, the voltage is actually at 1.285, it seems to fluctuate.
http://valid.x86.fr/z9mikx

4.4GHz w/ Ram OC
http://valid.x86.fr/4zjwiq

Any idea why this is happening?
post #2 of 17
Is there dust build up? Do all your case fans work? Is it really hot in the room? Check core temps with real temp or hw monitor. What kind of cooler do you have 1.3 volts chips start to get much hotter
post #3 of 17
Looks like your cooling may be fine. But as the above poster said, maybe try a different cooler/thermal compound? Maybe a BIOS glitch or just that cpu cannot take 1.3v? Have you tried 4.4 on 1.28 volts? For reference I do 2500k @4.5 with ~1.33 volts and temps are around 60.
post #4 of 17
Thread Starter 
I use Arctic Silver 5 and a Corsair H55. There is no dust buildup. The fans do work. I mean I've have it higher in the past, voltage and Ghz. Maybe it's starting to crap out.
post #5 of 17
Temps in the bios read at 90C? What on earth. Can you use another program such as HwInfo64 and see if it still reports 90C and the same voltage?
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post #6 of 17
Sounds like really bad thermal paste. Is your h55 plugged into the psu directly via the 12v accessory or is it powered by the motherboard??? What fans do you have on the h55? Are those full speed?

Take the cooler off and snap a pic of the thermal compound spread on the cpu and the cooler and post it here. My guess is the cooler isn't seated with enough pressure on the cpu
post #7 of 17
Thread Starter 
Quote:
Originally Posted by orangeFlavor95 View Post

Looks like your cooling may be fine. But as the above poster said, maybe try a different cooler/thermal compound? Maybe a BIOS glitch or just that cpu cannot take 1.3v? Have you tried 4.4 on 1.28 volts? For reference I do 2500k @4.5 with ~1.33 volts and temps are around 60.
I tried it at 1.285 and 1.290 neither were stable and eventually blue screened but at 1.290 when I went back into the bios after the blue screen the temperature was rising quickly from 55C to 70+C when I left bios.

Quote:
Originally Posted by benjamen50 View Post

Temps in the bios read at 90C? What on earth. Can you use another program such as HwInfo64 and see if it still reports 90C and the same voltage?
Speedfan also read the temperature at 90C. I'm not a big fan of full booting just in case it's really at 90C.

Quote:
Originally Posted by Cakewalk_S View Post

Sounds like really bad thermal paste. Is your h55 plugged into the psu directly via the 12v accessory or is it powered by the motherboard??? What fans do you have on the h55? Are those full speed?

Take the cooler off and snap a pic of the thermal compound spread on the cpu and the cooler and post it here. My guess is the cooler isn't seated with enough pressure on the cpu
It's plugged into the mobo. I use two 2000rpm rosewill fans on both sides of the cooler, one pushing and one pulling. I'll look at and redo the thermal paste later today and see if that helps, I need to buy some rubbing alcohol...
Edited by SealedGecko - 2/26/16 at 5:30am
post #8 of 17
Have you checked your pump RPM to see if the cooler is actually working ?
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post #9 of 17
Thread Starter 
Quote:
Originally Posted by Lucky 23 View Post

Have you checked your pump RPM to see if the cooler is actually working ?
Speedfan claims it is running.

I thermal paste looked relatively normal, a little dust around the edges but nothing excessive. I redid the thermal paste and it seems to be a couple degrees colder but nothing insane. Orginally it failed to boot fully. It wouldn't do anything but a restart loop then after a minute or so of being off it made it to bios and at 3.3Ghz and 1.2V the temp was rising fast again. I changed the clock speed to 1.6GHz and it would sit at 55C in bios and it was at 0.95V. Then after another restart in bios it was at 20C. Then I changed everything back to 4.2GHz and 1.285V and it's where it is now.
post #10 of 17
What about the reading at 4.2 being wrong? Anyway, put that AS5 in the garbage and get some thermal paste with no cure time.
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