I plan on getting an EVGA Supernova 750w b1 for my i7 3770 and Gtx 970 over clocked system. I can't get the B2 because it wouldn't fit in my system. I'm upgrading my Dell XPS 8500, and it can't handle the standard 180mm depth of most ATX power supplies. I was wondering if the b1 was a bad power supply, if not can it handle an overclocked GTX 970