Mine shipped with the 10/5 bios, but there was one from 10/17 on the epox site, so i upgraded. My timedemos in q3 have dropped about 6 frames. I'm not overclocking, and am using the optimized defualts.
My system is as follows:
Epox 8kha+ (which I love btw, no problems at all, i had to rma two...