Prime95 OC error

juannfox

Commendable
Jun 8, 2016
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Guys,
so I overclocked my i5 4690k to 4.4ghz with 1.150v and I ran into this problem while testing Prime95. Any clues?

[Jul 19 10:32] Worker starting
[Jul 19 10:32] Setting affinity to run worker on logical CPU #1
[Jul 19 10:32] Beginning a continuous self-test on your computer.
[Jul 19 10:32] Please read stress.txt. Choose Test/Stop to end this test.
[Jul 19 10:32] Test 1, 1800000 Lucas-Lehmer iterations of M250519 using FMA3 FFT length 12K, Pass1=256, Pass2=48.
[Jul 19 10:33] Test 2, 1800000 Lucas-Lehmer iterations of M245759 using FMA3 FFT length 12K, Pass1=256, Pass2=48.
[Jul 19 10:34] Test 3, 1800000 Lucas-Lehmer iterations of M245281 using FMA3 FFT length 12K, Pass1=256, Pass2=48.
[Jul 19 10:35] Test 4, 1800000 Lucas-Lehmer iterations of M243713 using FMA3 FFT length 12K, Pass1=256, Pass2=48.
[Jul 19 10:35] FATAL ERROR: Final result was CB5FF187, expected: CDC2C7AA.
[Jul 19 10:35] Hardware failure detected, consult stress.txt file.
[Jul 19 10:35] Torture Test completed 4 tests in 3 minutes - 1 errors, 0 warnings.
[Jul 19 10:35] Worker stopped.
 
Solution
Yes. Dial back the overclock or increase teh voltage. If you have good cooling you can try 1.175v. If that works, dial it up to 4.5 and see if it's still stable.

juannfox

Commendable
Jun 8, 2016
111
0
1,710


1.175v was indeed stable but god damn that was a hot prime95 test, dangerously hot even with my H60 Corsair WC system. For some reason it would boot with 1.150 and not with 1.165...weird.

Gaming was stable on 1.150 and the heat was acceptable, but I couldn't just ignore the error, right?
 


I would go for 1.175v and see what the temps are while gaming. If it doesn't touch 80, you are fine. Prime95 produces heat in a manner that you will never see in "real world" usage. No even close.
Thanks for the downvote, btw :))
 

juannfox

Commendable
Jun 8, 2016
111
0
1,710


Downvote was a mistake clearly, was on the phone checking and missclicked. And yea I noticed lol, back on stock speed with stock cooler it went up to 90c so...
I will try 1.170 first and then if 1.175 is the only choice, I will test some heavy gaming :)
Problem is solved though, it's just a matter of testing now, thanks for that!

 


You're welcome! Just kidding about the downvote :)
Good luck!