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Hardware Failure Detected after system stability test on overclocked CPU

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So after 5 hours and 10 minutes running a system stability test, I thought it was stable. Then I looked at my screen again and I got a message Hardware Failure Detected on a red background.The test stopped. Max temperature on a single core was 90 degrees. Average was close to 70. Can anyone tell me what went wrong? I can give more information if needed. I'm using the latest version of Aida64. Thanks!

 

Specs - 6700K at 4.9GHz, Maximus VIII Hero motherboard, 32GB RAM, H110i GTX CPU cooler.

 

6700K voltage - 1.376

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It's not possible to pinpoint exactly which component failed. But based on your system description, it may just be too overclocked. Your CPU may be stable at 4.8 or 4.7 GHz though ;)

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It's not possible to pinpoint exactly which component failed. But based on your system description, it may just be too overclocked. Your CPU may be stable at 4.8 or 4.7 GHz though ;)

I took your advice and lowered the clock speed to 4.8GHz. Been running Aida64 now for about 9 hours now and no issues. Temperatures have dropped about 5 degrees on the hottest core, even though its running at the same voltage.

 

About how long would you recommend I let it continue running to confirm stability? I've read where people recommend a full 24 hours.

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Something between 12 and 24 hours is best.

 

I really appreciate your help. I did a full 24 hour test and it passed no problem at 4.8GHz at 1.376v. Could probably get 4.9GHz if I gave it more voltage, but I'm happy where it is now. Thanks again!

 

1 question though. Is it normal for sometimes a core to reach 90+ degrees with Aida64? I mean this is nowhere near the average temperature, but it is the max. I'm running Aida64 with my friend's 4790K and it seems to be getting up around 90c 

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1 question though. Is it normal for sometimes a core to reach 90+ degrees with Aida64? I mean this is nowhere near the average temperature, but it is the max. I'm running Aida64 with my friend's 4790K and it seems to be getting up around 90c

Haswell processors operate at very high temperatures, and can easily throttle under heavy load. 90+ Celsius is normal for them.

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