So you got 6 x16-x1 risers? Have you tried x16-x16 riser if you got one? i got a gigabyte mb which recognized all 6 cards if two of them are installed directly to mb or using x16-x16 riser. A bug or feature, don't know.
Yep, using 6 x x16-x1 powered risers, the H81 BTC Pro MB only has on x16 on board and if i place a card directly in the slot then it covers one of the X1 slots. I don't have a x16 to x16 riser to test, but guess I'll order a couple to try. Just pissed, have 6 480's sitting around doing nothing and diff is shooting up daily!
That said, looked on Amazon for a x16 to x16 and they all have shit reviews, not a single one looks good, people saying it has shit contacts and a few fired the MB.
Any recommendations on a quality x16 to x16 riser?
My Asrock MB was unable to see card in x16 slot with x1 riser, but with x16 riser it works with no problem.