View Full Version : Question on PSU...
I have a 1kw PSU and I'd like to know if the PSU always consumes 1kw of power or does it only consume the amount of power required by the system?
02-11-07, 08:13 PM
It consumes the amount used by your system + 100% - efficiency rating.
So, if your PSU has an efficiency rating of 80% and it was a 400W PSU, and you were pushing it to the max, it would suck 500W from your wall outlet.
And, if it were a 1000W PSU like yours, and had an efficiency rating of 80%, and your system consumed 400W, then again, it would still suck 500W from your wall outlet.
So basically, you take 100% - efficiency rating of PSU = less efficiency
less efficiency * system power consumption = efficiency add
system power consumption + efficiency add = actual power draw
02-11-07, 08:39 PM
02-11-07, 08:46 PM
my bad, thats wrong
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