thanks for replies guys
i have a monitor attached currently mining w/ 2 cards so its not crossfire settings. with 3 cards i use both psus. i'll try putting one card directly on the motherboard and 2 others on 1x powered risers.
@grippy54 do u use your 1x powered risers in 1x slots, or the beginning part of your x16 slots? my board has 3 x16 slots and 2 x1 slots.
I have a 3x R9 290 rig and one of my cards is plugged directly to the x16 slot (waiting on a x16 to x16 riser) and the other 2 cards are with powered risers connected to the x1. I am also running headless.