Hardware problem

[Russ Gilbert]

We bought a 'put-together' computer 12/02, from an
individual who puts them together. The computer started
having unpredictable lock-ups right away. Then about 4/03,
the geforce 2 mx agp card went south and a geforce 4 was put
in. Now that card is gone.
This is a Transcend akt4/b motherboard, AMD duron 1.3 ghz
processor, duro 400w pwr sply, 512 megs memory running
Windows XP professional.
When the computer locks up, you can hear noise it puts into
the house wiring thru a house wiring intercom we have as it
re-boots.
I'm thinking the motherboard or power supply are the
culprit.
Any way to test the mb and ps? It is a socket A mb.
thanks
russg

[Russ Gilbert]

thanks Chris.
From what I've found, Duro makes crap. The ps
I have sells for like $12. I've found threads that
indicate Duro ps have fried people's CPU and/or
mother boards.
I think I'm gonna get a decent ps (enermax or pc
power and cooling maybe?). and a cheap AGP
card and see if I can get a display.
The computer does boot up, I can tell because the
hard drive light flickers and Win XP Pro startup
and shutdown sounds play, so I know the CPU
is at least alive.
Someone else suggested memtest86, but I can't get
a display to run anything.
Thanks