need help with p4 system (not starting up)

[327]

I was gone all weekend and i normally leave my computer on all the time crunching SETI and on direct connect. It is usually 100% reliable. I came home yesterday from being gone for 2 days and the computer was off. So i turn it on and it runs for about 3 seconds and then turns off.... so i unplug the power cord, and plug it back in, then repeat, with the same result. So i dont have the manual for the board and i figured i should clear the CMOS. I pop out the battery for a few seconds and then put it back in, and now it wont even power on at all. I'm thinking the battery may have been damaged by me taking it out or it is just bad. Either way i bought a new power supply and motherboard. I tired the current board with a diffrent power supply after taking the battery out and it wont power on. I reseated the cpu and ram, also the video card. I tried a PCI video card and some other things, I'm drawing a blank for the most part right now.
None of the components smelled burned or anything like that and the cpu and ram look ok....
Any help, Ideas or suggestions would be appreciated, thanks - Mark
Pertinent information

Asus P4b266
p4 1.6 512k retail cooling
antec pp303x 300W power supply
256DDR PC3200 OCZ memory
single IDE hard drive (maxtor 8mb ATA133)
and single IDE dvd rom drive and 4 case fans
Geforce2 GTS
Dfe530tx nic (PCI)

Could i get some input on my new board and psu also?
board - has onboard sound,video, and lan and 2 ATA100
power supply

 

[slackerinabox]

I noticed that we have like 5 posts about computers not booting (including my post) - could we have an unknown virus on our hands?

 

[327]

i doubt a virus could get something like that to happen, but you never know.
i am behind a router most of the time so its a little more secure than nothing heh


also when i plug the power in to the power supply, the green led on the board comes on.... if that helps anyone

 

[shootinyou]

CPU fan isn't dead is it

 

[327]

interesting point.... although i dont get a video signal though either when trying to start it up.
my new board and p/s are here but i dont think i have enough time to mess with it before work. will update later

 

[327]

i must be a sh|t computer tech, now i have troubles with the Soltek.....
i might just hang it up and stay on the p3 for a while :\