PSU bad? Voltage question.

[eedmond]

I just built a new computer for my mom, the only parts I used out of her old one was the PSU, HD, Video Card and Wireless card. I replaced her CPU, MB, Ram and case.

Old System
Asus A7V133
Athlon XP 1200
1 gig Ram (originally, then down to 320ish after first PSU died)

New System
Asus A7N8X rev 2
Athlon XP 2400
1 gig ram (new)

But one of the same problems she had with her old computer has followed her to the new one. I reinstalled Win2k (fresh install). Her old computer did this every once in awhile but not often. Her new one is doing it more often (been up and running for 4 days now, done it twice already). I am thinking her PSU has gone bad (again, it died about 6 months ago taking out her ram). I am thinking this new one is dying as well. It isn't a name brand by no means, it is a L&C 350 watt.

It's voltages are:
vcore = 1.66
3.3 = 3.28-3.29
5 = 4.98-4.99
12 = 12.48-12.49

Is that 12 volt too much? A whole half volt over what it should be? I have another L&C 300 watt lying here that I can throw into it to try. (It might be bad to because the system it came out of had a blown capacitors on the MB)

Anyway, when I go in there it is ON (fans, everything running. Monitor is off), but nothing happens when I move the mouse as if it has frozen, monitor won't come back on, nothing. Have to hit the reset button to reboot it.

EDIT:
I came home from work tonight and it was locked up in windows itself. She had about 5 IE windows open and it was froze hard. I had to hit the reset button to reboot it. I think I am gonna throw that 300watt in and see what happens. Would rather not fry this new MB and Ram.

EDIT 2:
Well, I was bored so I went ahead and threw that 300watt in it.

These are it's voltages:
vcore = 1.66
3.3 = 3.26-3.28
5 = 4.89-4.91
12 = 12.28

Are these better? Or should I buy a new one?

EDIT 3:
Guess that wasn't it. Just went in and checked on it and it was locked up again.

I know a few times after it locked it up, the computer complained about the HD. I just assumed it was due to the lock up and not saving everything properly. Guess next thing I am gonna do is replace the HD.

*sigh*