Do I need a new PSU?
 

So I've had my comp for almost half a year now:

MSI RS480M2
Athlon 64 3200+
1 GB DDR PC3200
X800XL
Chaintech 7.1 Sound Card
2 HDs
DVD Burner

The PSU is a 420W what came with the case (Aspire X-Qpack)... What I'm wondering is if it would be a good idea to replace the PSU with newer, name brand one. I don't OC, but would I see any performance increase by changing the PSU? Or for some other reason? I haven't had any real problems with my comp so far, but I've bee keeping an eye on the PSU since it's the only part I didn't really "choose." If I do get one, it'll most likely be a 500-600W Fortron Source PSU. If I don't get the PSU I'll probly pick up another gig of RAM, but I'm guessing that shouldn't affect the current PSU too much. Thanks

Replace the PSU when it dies, or when you get enough stuff that 420w isn't enough. Not before.

You're not going to see a performance increase with a different power supply.

You won't see any difference in performance from a new PSU. Keep the one you have, as 420 watts ought to be plenty unless you have a ton of peripherals. And you'll see a nice performance gain from the RAM.

You will know when it is time to replace the PSU...it will either
go dead, or blow up like the the one I was working on this
week....and I do mean BLOW UP. That think gave several loud
pows and a few little pops, and the shrapenal flew inside the PSU case...smoke and stink like you would not believe....turns out the
mobo was bad and this was the second PSU it had ruined..VG