Running 3 5870's, 2 on 16x risers and 1 on 4x to 16x riser. PC will just freeze after random amounts of time mining, then i have 2 reset.
It can run a couple of hours no problem, sometimes couple of days. If I remove the card on the 4x to 16x riser and just run the 2 on the 16x risers, same story.
If i remove the risers and run the 2 straight on the m/board no problems. Ruled out power problems. So it must be the risers. But why? Could it be EMI from the risers?
Just want everything to run smoothly in 1 rig.

I'm trying to register at flexcoin.com, but i get the error "your token is either invalid or has expired "
Is it open for anyone to register or is it still invite only?

Thanks