Post
Topic
Board Mining (Altcoins)
Re: New rig problem: direct pcie 16x connection is slower than 1x riser
by
porscheman170
on 10/01/2014, 22:28:13 UTC
You definitely don't have enough power for 3 290s. Trust me I have 8 of them each one draws ~300 watts and the rest of your components are an easy 50 watts. That could lead to inconsistent hash rates when running multiple cards. Also like somebody else said the cards are all different, you might be pushing the powercolors too hard/or not enough causing a smaller hashrate.