Also be warned. A lot of genaric power supplies are rated for peek output and can not run at these speeds for long if at all. That is the main reason to stick with only good power supplies. Antec is always at the top of most lists. They are always rated for continous and usually can go much beyond that. Tom's Hardware was able to get a 430w Antec True Power PS to run at 489w continous. They are also very quiet.
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