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Overclocking and Stress testing my 2550K

post #1 of 30
Thread Starter 
Hi all,

I am overclocking my Core i5 2500k processor and was able to get it to 4.2GHZ with 1.180vcore in Windows. But when I went to go stress test the CPU, Prime95 indicates that "worker" 3 stopped running after running it for around 2-3 minutes. How do I fix this?

Any help would be deeply appreciated. I am a novice at overclocking, so forgive me.

Attached is the image screenshot.

Thank you kindly.
post #2 of 30
too little voltage, if it pops up after 3 mins I say you need 1,20-22v to get stability.
post #3 of 30
Thread Starter 
Looks like you were correct, I need 1.200volts to get it pass 5 minutes of stability. Thank you sir. Will continue pushing my clocks since it only reached 60 degree celsius in Prime95 at 4.2Ghz. Probably won't be expecting a whole lot though.
post #4 of 30
You could push until 70'C, and up to 1.35V is safe territory. As always, push up clocks before voltage. Once you reach 1.35V, I would stop, and attempt to undervolt your final clock as much as possible. A quick 30 minute test in p95 is usually enough to judge system stability before going for longer stress tests.
post #5 of 30
Thread Starter 
Well I reached a 4.3Ghz with a 1.22vcore, but it wasn't stable. I left this running last night and woke up this morning to check its status. Prime95 indicated that a "worker #3" failed. It was doing fine for 6hours and 57 minutes before that. I checked HW Monitor and saw temperatures maxed at 73c. But on average it was hitting aroun 55-60s ish. Is this wrong? What is my next step? Should I back down? Or what should I do here? I don't know what to do here.


Edited by raisethe3 - 5/20/15 at 3:41pm
post #6 of 30
If it can do 6hrs then you'll likely suceed with like just 0,01v more vcore. And you're safe even above 80 degrees in p95, even the toughest games won't stress it that much. Above 80 is allowed for testing stability.
post #7 of 30
Agreed, you can afford to go up to 80'C in p95, so push that VCore up to1.25V (I use increments of 0.05V myself), and test for a 6 hours again. Then drop the VCore from there until you reach a stable voltage. Or... if you don't exceed 80'C in p95, feel free to push that VCore up to 1.3V and check out how high you can clock that frequency. DON'T go further on the VCore if you can't stay at or under 80'C in p95 though.
post #8 of 30
Thread Starter 
Thank you for the assist guys! I think I managed to get it around 4.3Ghz, but will test it with prime 95 overnight to ensure stability. Rep to you guys both! Will post results as well. thumb.gif
post #9 of 30
Quote:
Originally Posted by raisethe3 View Post

Thank you for the assist guys! I think I managed to get it around 4.3Ghz, but will test it with prime 95 overnight to ensure stability. Rep to you guys both! Will post results as well. thumb.gif

Good luck with the testing - what Vcore you at by the way?
post #10 of 30
Thread Starter 
Quote:
Originally Posted by Desolutional View Post

Good luck with the testing - what Vcore you at by the way?

Its at 1.22~1.23 sir. I plan to stress it tonight to ensure that I can move the speed higher if the temps allow me to.
Edited by raisethe3 - 5/21/15 at 7:28pm
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