My sister has a Compaq Presario 5WV250 with a duron 700 cpu. My question is do these use standard PSUs or not? The reason I need to know asap is because my Niece called me today telling me that the PSU blew when the computer just restarted on its own last night and she does not want her mum (my sister) to know about it. So as a good uncle I've to fix the problem. I have 2 PSUs lying around and unfortunately a PIII mobo with no cpu as well.