The silverstone site quotes 40 A combined current available for my 560W supply
From Guru3D (i know they quote high but i have seen a lot of other review saying 30A
Recommended Power Supply
So here's my power supply recommendation:
Radeon HD 5770 (single GPU)
The card requires you to have a 500 Watt power supply unit at minimum if you use it in a high-end system. That power supply needs to have (in total accumulated) at least 40 Amps available on the +12 volts rails.
The Toms PSU forum says:For all the above Cards you should have atleast 30 amps on the 12 volt rail.
That includes the 5770
im going to repost over there
, i realized this is a PSU question and not a system building question