Hello everyone
I've just setted up my Litecoin mining rig consisting of 3 x 7950 GPU's, all connected to the motherboard through 2st 16x and 1st 1x riser.
Now to the problem, two cards are running absolutely fine. However one of the cards ( connected furthest away from mobo, if it makes any difference ), as soon as you press start on GuiMiner - scrypt for that card I get (avg):0.000h/s | Q:7 A:0 R:0 HW:0 E:0% U:0.0/m and then just shortly thereafter everything freezes for 1 sec and screen blinks and " amd drivers stopped responding and has recovered" pops up. The GPU which has the problem is connected via a 16x riser.
The card is completely useless at this stage, I noticed that one can run the card on low settings for 7950 but then one gets insanely(!) low hashrate of around 50...
My specs are
Mobo: Gigabyte 990XA-UD3 rev 3.0
PSU: Corsair AX1200W
RAM: 10GB
CPU : Cheapest I could find.
GPU: 3 x 7950 connected with risers.
Afterburner not installed, MSI kombustor installed and running though
Can't really understand why this is happening, started out when I upgraded from 2x 7950 to 3 x 7950. It's one of the old GPU's too that's messing, not the new one I added. I downgraded to drivers 12.8, still same problem ( had initially the latest )
Been stuck with this sh*t now for 2 hours. Will give a small bounty of 5 LTC, the solution should work when I go to 4 x 7950 too ( as I've planned with my rig ).
Thanks in advance!
