Re: Little help - dead Mobo or CPU...?
Generally best to get an overrated PSU - ie. more power than currently required. Big danger with PSU's is they are designed to work with your initial computer set up and then you add loads of extra drives, cards etc. and suddenly you are pushing the limit. I would take the old one down your local computer shop and ask for one with somewhat more oomph (you know that word should really be in the dictionary) than the original. For the difference in cost it is well worth doing.