I was planning on buying a power supply and an r9 280x after that... but what are the power cords required for that graphics card? I read that it has an 8 pin and 6 pin but I was wondering if both were required? Or only one? Or how does that work... BTW I was planning to get this http://www.ebay.com/itm/NEW-Green-650w-MAX-QUIET-ATX-Power-Supply-12cm-Fan-20-4Pin-SATA-AUX-On-Off-/311665295985?hash=item4890b30271:g:~8UAAOSwARZXmWBr Of course with this I need to get a 4pin to 8pin adapter but that should be fine. BTW anyone know where to get a good one of those cheap?