[Malvern] PC PSUs

[Ian Pascoe]

Hi All

Why are PC PSUs so highly rated ie 400+ watts?

I know that the CPU and Graphics card gets rather hot so must take some of
the power, and of course you have the power for the hard and optical drives,
but even so this still seems a high wattage compared to what there is inside
a normal PC these days.

My only thought on this is that they have to spec up what the power drain
would be if all PCI slots were used, all USB devices were powered from the
PC etc etc - am I on the right track here?

Cheers Ian
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