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3570k 4.5Ghz OC Temps Need Help

post #1 of 54
Thread Starter 
After hours of trial and error (I'm new) I managed a nice number (nice meaning no BSOD's) of 4.5 Ghz with 1.328v or rather 1.288 core voltage, 1.072v idle @ 40c (CM Hyper 212 EVO+). It seems to stay on 1.288v 90% more often than 1.328v. Anyway, I open up Prime95 for only maybe 45 seconds and my temps are starting to hit 89c. I closed it when I saw the temps in Core Temp in the yellow because it scared me. So yeah, is this "normal" or ok? If not, what shall I do?

Edit: I let it continue running for another 30 seconds and temps rose to 90-ish at which point Prime95 stopped working. Can someone help me out?

About the temperatures... I've had the system for a long time keeping decent temperatures at stock settings for maybe a year now. Its only now that I'm trying my hand at overclocking that the temps are insane. @rss its seated properly and has been for months /sadface @Snipekill those temps sound crazy, stop scaring me. @frag Its Arctic Silver 5.


Board P8Z77-V LK

Multiplier x45
BCLK 100
Edited by TpYourHouse - 7/5/13 at 3:05am
post #2 of 54
Have u checked if ur cooler is seated properly? If u get 90C+ after 40 seconds something is not right. Personally i wanna keep my temps under 85C while stress testing but others are ok with <95C.
But if you already hit 90C after 30 seconds then after a few mins it might hit Tjmax (105c)
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post #3 of 54
Yes, those are normal temps for these chips. I have the same setup at the moment, 3570k and 212 evo and once OC'ed to 4.4ghz I hit 90c running Intel Burn Test.

The max safe temp of these chips are 105c, but I try not to go above 95c personally.
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post #4 of 54
Reseat the cooler?
Take it off, clear TIM, reapply the thermal paste - you might want to try spreading a really thin layer and seating the cooler. Make sure you don't apply to much paste or just gently remove any extra. Seat the cooler carefully and run it. thumb.gif I hit ~80oC on 4.8GHz @ 1.32 on my 212+ (and no, the second fan + arguably better, if at all, performance doesn't justify over 10oC difference).
What kind of TIM are you using?

As we speak I'm running 4.5GHz @ 1.208 and I'm topping off at 68/75/72/71 temps (cores 1 through 4) under p95 Large FFTs.

Edit: P95 didn't stop due to temperature. You also seem to be unstable. Perhaps some more on your BIOS settings and we might be able to help thumb.gif
Edited by fragamemnon - 7/5/13 at 3:05am
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post #5 of 54
What TIM are you using?

Also, P95 should not have stopped with temps in the 90sh as TJMAX for these chips is 105C, it seems that your OC might not be stable.
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post #6 of 54
Thread Starter 
If so, I have a bad chip, or rather I am a terrible overclocker. If I increase voltage more than it already is, to make it more stable, my CPU could fry me some breakfast this morning. Also to add something, I just used Cinebench to stress test and had no problems scoring a 7.41 while 100% CPU load @ Max 70c temps.

Ambient room temps are not over 21c.
Edited by TpYourHouse - 7/5/13 at 3:13am
post #7 of 54
What are your ambient temps?
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post #8 of 54
Definitely try reseating the cooler and probably try applying less thermal paste. That seems to be a problem a lot of people have. Lastly, check this guide: http://www.overclock.net/t/1291703/ivy-bridge-overclocking-guide-asus-motherboards

Start from scratch with the overclock. Temps still seem slightly off to be honest. 4.5GHz and Hyper 212 should be fine at those voltages. Even though TJMax is 105, you still shouldn't be that high to be honest. Also, if you aren't going to run Prime for hours, then don't even bother running it. Use Intel Burn Test on Very High for 10 passes or LinX Linpack for 20 passes instead.
post #9 of 54
Thread Starter 
I ran Prime95 again this time cough with my fans turned on a bit more cough for the same amount of time as I did before and temps never got above 79c. However, Prime95 did crash along with host processes for Windows.
post #10 of 54
Try downloading and running Intel Burn Test
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