[johnwill]

The P/S would be my top suspect, the MB comes after that. I'd start there...

 

[johnwill]

Now that you know it's a P/S, buy a decent one. The 120 watt won't power a modern system for long, it's probably huffin' and puffin' to do the job.

 

[johnwill]

lol, no kidding... i've got a radeon 9700 pro 128 ... needs more power than most vid cards so it plugs directly into the power supply.... its like one of those fish that you always see stuck to the side of fish tanks

The water will drain from that fishtank soon if you don't buy a decent P/S!

 

[johnwill]

Mail-order places are open 24 hours a day, and their prices are cheaper too!