Quote Originally Posted by donmarkoni View Post
Put them in slots 2 & 4 to run both at 16x, but if you have time, test them in slots 1 & 3 at 8x both. You should get slightly better results.

If you want to run 3 graphic cards at 16x, you should use slots 1, 2 & 4.


Except obvious (vCore) you should try playing with VccSA & VccIO, which are something like QPI/VTT. Many say VccIO is the key, but I would not forget about VccSA. Don't forget DIGI+ VRM section.
Thank you! this is good info! I'll test it on both slots , and those are some good clocks on the 580, is it on water?