Is anyone successfully using two PSUs in a mining rig? I can't get my secondary psu to turn on no matter what I do. I have my secondary PSU powering only the video cards' PCI slots.
I tried shorting ATX pins 16 and 15 on the secondary PSU
Tried connecting 16 and 15 from my primary psu to secondary psu atx
I even bought an add2psu and tried that.
I even tried different combinations of 80 Plus platinum PSUs:
I tried a Corsair HX850i with an HX750i.
tried the Corsair HX850i with an EVGA Supernova 750W
Swapped both PSUs, and tried a Corsair AX860 with AX760W
Every time I do any combination of things, the secondary PSU just turns on and off after about 1 second.
I'm trying to revive my 4x R9 280x mining rig. After moving apartments I set it up again using my old Seasonic 80 Plus Gold 1250w PSU with my 4 R9 280x's, and for an unknown reason it fried and smoked up my room with dirty plastic-y smoke. I figured I got lucky running 4 cards on that PSU, and that my rig likely needs more power, which caused it to catastrophically fail.
Rig Setup Photos:
http://i66.tinypic.com/kaiuit.jpghttp://i64.tinypic.com/4uc9ia.jpghttp://i67.tinypic.com/2itg8zc.jpghttp://i67.tinypic.com/245lj6t.jpgAnyone have any ideas on how to get a dual PSU working? Anyone running a 4x R9 280x (or similar) rig on dual PSUs? Or if you have a single PSU, which model and wattage works for your setup?
