Quote Originally Posted by I.nfraR.ed View Post
Zeus, did you try loosening trfc? Also, do you try with both cards running?
I had to change trfc from 110ns to 300ns on my C4F in order to boot past 275+. Got it to 345, but it freezes just before it hides Welcome screen of Windows 7.
This HD7850 is very picky when we're talking about pci-e clock, so it might be part of the problem.
Didn't play much with it, but will do when I have some free time.
Ivan my friend...i owe you a big beer!



300ns did the trick! I would have never ever looked into that myself, thinking trfc is a completey memory related setting. I guess not.

Just tried 320 with no changes to any voltage whatsoever and it booted straight into Windows. To see if it was stable i ran 10 passes of IBT and it completed without errors.

No need to see what i can achieve here, it's just that i couldn't get it over 270 that made me wonder.

Thanks everyone for helping. Guess i unintentionally found a way of derailing your thread after all Oliver.