Computer Repair

[Raffaz]

how would one go about testing the Power Supply (PSU) ?

Best way is with a multimeter

 

[Celegorm]

a multi-meter, there are digital psu tester, just plug the plug in teh right spot on the tester, and it'll give u the volages.

that, or plug in a known working psu and see if that fixes their problem. if it does, sell them a new one, and charge for install.

 

[Kage]

I was thinking of setting up a small buisness at home to make PC's for people that can't.
I wouldn't know how to go about it, but I've fixed for example alot of my dads mates PC's, and have built one or two (including mine of course )