Quote from: Hephaestus on June 08, 2013, 01:39:10 AM

Quote from: gregyoung14 on June 08, 2013, 12:50:56 AM

Quote from: Hephaestus on June 08, 2013, 12:19:10 AM

Quote from: gregyoung14 on June 07, 2013, 08:45:03 PM

Hey So I tried just installing the proprietary drivers like you did and running cgminer, and cgminer spits out GPU 0 failure, disabling, for all the cards excpet one, and so then they all list in cgminer as OFF. I followed a few different guides on getting cgminer up and running in ubuntu/xubuntu and no luck. All the cards just show as off, expect for one. And then a few seconds in my display will go blank and I'll loose picture. Computer still on and running, no display. An ideas whats going wrong? I don't think theres anyway that 1600w wouldn't be enough for all 6 but is it possible?

Suggestions? I really just want to get this damn thing stable. I've had all the parts for almost 7 days now -___-

I was setting up three 7950s today and actually found that I need the beta drivers (from the additional drivers in the settings menu) in order to use multiple cards. That fixed most of my problems.
After all the cards were working properly I frequently got reboots right after launching cgminer, I managed to fix that with a powered riser...
1600 watts on the output side of the power supply would be cutting it really, really close. My three 7950s right now are pulling 940 watts from the wall (pre-tweaking).

Thats interesting, I cycled over to an Xubuntu instal but it seems that even my clean installs are getting corrupted, I open firefox and terminal and the whole system just locks up and craps out. I've pulled a card and only using x5 now to eliminate the possibility of using to much power. Same issues still occuring. I Had windows 8 running on another hard drive and it saw all 5 cards fine, installed drives, booted up cgminer conncects, reports hash rate, and screen goes blank no signal all control lost, no idea.

How many powered risers are you using?
I was having issues with three cards on unpowered risers, adding a powered riser (with the line to the board cut so it only pulled from the molex) solved it.

At this moment I have 3 on powered risers, and 2 that aren't on powered risers, just risers.

I'm testing in a fresh install of win 7 64bit.

Device manager see's all 5 and they are intialized and regonized in afterburner and cgminer, however when I started up cgminer just now, the display driver crashed and then recovered. all the cards showed 0kh/s

So a little bit of progress seeing all 5 cards, now to just make them work in cgminer.