Quote from: evakka on May 14, 2017, 01:57:39 PM

That's the reason I suggested to reinstall windows, so to test the cards one at a time.

So, install just one card, also drivers and mining software and begin to mine
Do that for every GPU and check if mining is doing well

I have done that now, running windows 10, working fine with Claymore and all cards...
But when i plug them in all at once, windows wont find the 290's, only the 7970.
I run the 290s on a separate HP proliant 1000w psu, but i was thinking about the possible problem with just 2 6pin pcie powercables? Do i need the extra 2pin connector attached aswell?