i have an asus gtx 580 directcu ii, an intel dp55kg mobo with an i5-750 on it, i have two corsair vengeance 4 gb rams and my smps is the corsair gs 700.......after assembling my pc with these parts when i tried to turn it on i got no display on the monitor but a beeping noise coming from the computer....after a while of figuring out what to do i replaced the asus gpu with my old ati radeon hd 5450 and, it worked, the monitor came on and no beeping noise....so cud it b that my graphic card is faulty(its new) or is my power supply insufficient ? there r no available means to check my power consumption where i live and getting any from anywhere else will b difficult....please help.