Hey guys, had a quick question about the requirements for the gtx480. I guess I'm just a bit confused as far as amps go. I'm seeing from the nvidia site that the card has a minimum power supply requirements of 600W, which I have surpassed with my Antec 650W psu, but as far as amps go, the card requires a minimum of 42Amps, and that's where I'm stuck. My power supply is as follows...
The GTX480 itself will not use 42 amps. That the minimum recommendation for the entire system. Your PSU will be fine. I think the GTX 480 consumes about 160w - 170w under full load. Too lazy to check power consumption charts at the moment.
BTW, the PSU can provide a max of 540w on the 12v rails alone. Just try not to max out your PSU. That's the best way to shorten it's lifespan.
You definitely should upgrade your power supply to something more viable for an entire system + the gtx480
But i believe that if one rail isn't enough the power supply will use DC to DC via like a circuit breaker setup (i don't know much about electrical) to give more power to another rail (though lowering efficiency).
how about 160~300
His system will break 600w easily - depending on what else hes got goin in there