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69 DegC CPU (Why?)

post #1 of 13
Thread Starter 
Sorry for the cryptic title... but I'm not sure how to phrase my concern in such a small space...

Got home yesterday (after working my short 12 hour shift) late afternoon to be greeted by a screaming BIOS alarm from my sig rig... I rush to it (slow motion like... builds more suspense ), slap the mouse (because I can) and to get the monitor active and Speedfan shows CPU temp at 69degC... after passing out for a moment I get back to my feet and check that my core temps are 76degC and 79degC... eish... so I switched it off...

Flashback:
Quote:
So, I have been leaving my PC on 24/7 for the past 5 odd days doing SMP Folding... and thus my CPU has been running 100% load day in and day out for a few days. My CPU does run hot (way to hot for a stock E6300) and the max temps on the cores for the past days have been 56... sometimes peaking to 58degC (still high I know... I blame vcore I can't bring down and pretty high ambient temps and the fact that my thermal compound application skills suck).
So after ten minutes I opened up my box and checked the heatsick etc. and it was still fastened ok, started up the PC, all fans running... booted into Windows and temps were back to normal... Folded from then until the next morning (this morning) and it seems to be fine?

Why would I have gotten a 20degC difference? Thats a lot!?

So like a good noob I have left it on again to fold while I sit here at work (maybe I can re-create the problem... or kill the PC...?)

?
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post #2 of 13
When you say you checked the heatsink, did you take it off the CPU and put it back on? If you did you may have re-adjusted it on the CPU better so it's dispensing heat better, or maybe the CPU fan failed?
Damit
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Damit
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by GodofGrunts View Post
When you say you checked the heatsink, did you take it off the CPU and put it back on? If you did you may have re-adjusted it on the CPU better so it's dispensing heat better, or maybe the CPU fan failed?
No I just wiggled it to ensure that all four pins were still in... so it was still seated properly... could the fan have stopped (or ran slower) and now work fine again...?
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post #4 of 13
Do you use CoreTemp? If so what temp readings are you getting at idle and stress?
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post #5 of 13
Quote:
Originally Posted by thenailedone View Post
No I just wiggled it to ensure that all four pins were still in... so it was still seated properly... could the fan have stopped (or ran slower) and now work fine again...?
Short answer. yes.
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post #6 of 13
could be that the temperature inside the case got 20C higher and that it cooled overnight.

solution add more case fans.

just a theory there though.
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by GodofGrunts View Post
Short answer. yes.
Uhm... ok... the long answer?
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po-ta-toe
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post #8 of 13
Sometimes my SpeedFan shows all fans dead, all voltages dead, temps in 0. Next time inspect and touch the HS
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post #9 of 13
Quote:
Originally Posted by thenailedone View Post
Uhm... ok... the long answer?
Well, the bearing on the fan could be going bad, sometimes it works well, sometimes it doesn't. The plug on the fan could be shorting off and on, the socket on the mobo could be shorting, something could have rapped around the bearing and prevented from turning fast.

Lots of things could have happened.

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Damit
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post #10 of 13
Thread Starter 
I was able to recreate the failure and almost killed my CPU (again)

Thank goodness I checked on the PC this morning before coming to work... (cores again above 65 degC)...

For some strange reason, after my PC comes out of the default Vista power management "sleep" after being inactive for x minutes my CPU fan seems to stop/or run very slowly (I didn't open to check)... twice now I "woke" the PC up and after this the PC overheats (and it does become hot, after rebooting I checked in BIOS before booting Windows and the temp was dropping from above 50degC back to normal)... weird but true...
po-ta-toe
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po-ta-toe
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