GURU 3D SAYS
On your average system the card requires you to have a 550 Watt power supply unit. We recommend at least 35 Amps in total available on the +12 volts rails (accumulated).
And I have a Huntkey 550W PSU with two +12V rails adding upto 34A.
Refer the specs of my PSU here www.huntkeydiy.com/ProductsParticular?pid=50ede7b21de1d33c011de238368c000a
I really dunno anything about PSUs So I have a another question:
As I said it has two +12V rails adding to 34A. I currently have a HD5770 and I am going to remove and sell it and get a GTX470. After I get the GTX470 and after removing my current HD5770 can I connect these two +12v rails to my GTX470 OR
will some other component will be using any of those two +12V rails bcoz I need BOTH of the two +12v rails and there are only 2 rails in my PSU in other words: are these +12v rail things only for GPUs ?? (I tried removing my cabinet to see it for myself but couldnt figure out anything).
So I if my current GPU HD5770 is removed and I get a GTX470 I should be able to connect both the +12V rails right? Please throw some light on this, I dont want to change my PSU.