You should have enough power, and of you don't have enough connectors you might be able to use molex connectors.
Just got home opened up my pc and all i see avaliable from the PSU is a 6pin and its only a 400w ATX PSU.
Just got home opened up my pc and all i see avaliable from the PSU is a 6pin and its only a 400w ATX PSU.
http://pcpartpicker.com/part/corsair-power-supply-cx750m
Wondering if this PSU would be good to go with to run the R9 280x