ok here's an update. bought a new powersupply, 430w. Put it in, reconnected all the wires and I now have power.
Problem now is when I turn it on, the case fan goes a hundred miles an hour for about 5-10 seconds then the computer shuts down. I tried adjusting the switch in the PSU from 115 but then the power light blinks yellow and green and seems like it doesnt have enough juice to start.
Any thoughts?
**Update**
Ok I got the unit to stay on, heatsink was off a little. Now it makes a series of beeps about 4-6 times, then just sits. Nothing on the monitor. Its a Dell XPS 420
**Update**
Booting now. Loose memory module. Big Sighhhhhh