I think I'm going to have to agree with zeyuanfu on this one. I don't think they belong in any machine. For 30 bucks, the VP-450 is much more dependable.
And any rig without an aftermarket graphics that doesn't require supplemental power beyond 450w, doesn't need a PSU with more capacity than that anyhow. Any rig that does need it, shouldn't be run on one unless nothing better is available or possible, as with some members in India with budgets that don't allow for the higher tiered models in that market. Seasonic and Antec are pretty expensive over there, but the Corsair units are pretty reasonable so I can understand using them in that market, but not elsewhere.