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Core failure during Prime 95 stress test

Last response: in Overclocking
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October 28, 2013 3:32:29 PM

I just started overclocking my fx 6300. I have the Bus Speed at 200MHz, my Core Speed at 4200MHz, and my cpu voltage set at 1.38 volts. When I stress test in prime 95, core # 4 or 5 or both sometimes will fail after a while. Does this have anything to do with the voltage? Thanks!
October 28, 2013 3:36:18 PM

yes, it means the overclock is not stable, so you can either turn down the OC, or bumping up the voltage will work.
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a b K Overclocking
October 28, 2013 4:58:09 PM

I have found that Prime95 doesn't play nicely on the AMD FX series, reporting failures when everything is otherwise stable.

I have been using Intel Burn Test. It seems to be more stressful (higher temps) and doesn't give out false failures on AMD FX CPUs.

http://www.majorgeeks.com/files/details/intelburntest.h...

My 6300/6350/8350 would all fail Prime95 at stock settings within seconds (running blend), yet would pass every other stress test with ease. I am currently running 5.1Ghz on my 8350 and have not had a single stability issue running any other stress test for hours. Infact, all of my FX CPUs have been 100% stable at 5+Ghz with everything other than Prime95 (which was sometimes unstable at stock speeds).
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October 28, 2013 5:37:30 PM

ish416 said:
I have found that Prime95 doesn't play nicely on the AMD FX series, reporting failures when everything is otherwise stable.

I have been using Intel Burn Test. It seems to be more stressful (higher temps) and doesn't give out false failures on AMD FX CPUs.

http://www.majorgeeks.com/files/details/intelburntest.h...

My 6300/6350/8350 would all fail Prime95 at stock settings within seconds (running blend), yet would pass every other stress test with ease. I am currently running 5.1Ghz on my 8350 and have not had a single stability issue running any other stress test for hours. Infact, all of my FX CPUs have been 100% stable at 5+Ghz with everything other than Prime95 (which was sometimes unstable at stock speeds).

Thanks! Ill try it out and post the results. Also, how did you manage to get your 6300 to 5+GHz? I don't think I got that lucky with my chip, lol.
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a b K Overclocking
October 28, 2013 6:06:45 PM

I used my Asus 990FX R2.0 Sabertooth and a CM 212 Evo.

I have had at least 10 6300/6350's every single one of them could hit 5+Ghz.

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