SR-71 Blackbird said:
It's a relevant post because in my opinion,i think you need a tad more power.I didn't mean to offend you.Sorry.
Its a seasonic 500w unit, and PC&C is a very nice company. His system probably only uses 300w at max load.
I am using a 6870 on my 500w Antec EA 500D.
As someone else stated, take away components one at a time and see where that gets you.