so my cpu is a fx-6300 at 4.0ghz and i just got another r9 270x so i have 2way r9270x and i am having no frame increase in some games like bf4 both card are getting about the same usage and my cpu and gpus arent bottlenecking but my psu is an lsp ultra 650w and my 12v rail is only 38amps and i am told that that is why my frames arent good and 38amps isnt enough for crossfire so can anyone comfirm this before i drop the ball on another psu