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Old 2019-05-19, 20:33   #4
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Dec 2003

301510 Posts

Originally Posted by eliteassassin View Post
It is AVX capable, I have an Intel i7-9800x. If I remove my overclock and revert back to standard settings Prime95 v29.8 works without issue. Due to this I am almost 100% certain that it is related to my OC... What I am finding odd is that the previous versions of Prime95 did not seem to detect any issues? Are you saying that this version of Prime95 uses instructions sets that the previous versions did not?

Thanks for the fast reply BTW!
9800X has both AVX, AVX2/FMA3 and AVX-512 support. 29.8 is running AVX-512 by default which is faster but also more taxing on your hardware so your OC cannot handle the extra stress. Version 29.4 is running AVX2/FMA3 by default.

Since AVX-512 is a newer technology not all computers have the correct voltage settings in the BIOS for AVX-512. Also your CPU cooling might not be powerful enough to handle AVX-512.

Last fiddled with by ATH on 2019-05-19 at 20:39
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