Looking at the reviews on the net, the Winpower seems like a very poor PSU, with people getting different problems, but are related to the PSU not providing enough clean power, even for a single GPU setup.
The fact it also doesn't tell you the amps on the 12v rail makes me really worried. I would replace that PSU as soon as possible if you care about your system. The PSU Idleman specced in post #37 is at a bargain price at the moment.
The fact it also doesn't tell you the amps on the 12v rail makes me really worried. I would replace that PSU as soon as possible if you care about your system. The PSU Idleman specced in post #37 is at a bargain price at the moment.