Suffice to say I don't have an oscilloscope. Anyway, I bought an EVGA 650 G3, was beautiful, actually made my computer snappier I'm pretty sure. Then it died a couple weeks later. They sent me another. PC is not snappy like b4 and has had some weird crashes. Also the PCI-E cable with 2x 6+2 connectors only has one working connector.. they're sending me another cable but I have an icky feeling about this PSU, when the last one died, it borked my mobo a bit, thankfully it's a fairly tough one and has seemingly recovered now (i hope..) but don't wanna chance it again. Any help would be greatly appreciated, Thank You.

P.S. yes I know I should have listened to you and went with the rm550x, but advertising burrows in the braaaaain...