So I recently bought the Apex 500w psu and was wondering if it would run the r9 280. I've checked to see if my psu can handle the r9 280 and power wise it can. The only issue is that it says the pci connectors are only 2x6 pin's and no 8 pin's. The r9 280 requires one 8 pin. However there is a 8 pin connector on my psu, is this different from a pci connector? If I plugged it into the r9 280 would it work or should I just save up for the gtx 970 which only requires 2x6 pin connectors.