BillytheImpaler said:The beauty of SI units is that all the equations will work out in the end. You can use P=IV to get power rating and no matter what wattages you get they be the same as if you calculated them with any other method.
lol i know that!
my point is that a PSU thats rated at say 600W, may only be able to sustain a much lower current on a particular rail, than another supply rated at the same 600W.
basically its the psu's ability to supply CONSTANT current on any rail that is important - not the quoted "wattage" of the psu......
If the PSU says it's good for 29A on 12v+, then you should be able to draw 348W from that all day long without causing a failure.
if a psu claims 29A on the 12V rail then that's what I expect you to get - I'm not debating that fact!!