No POST or Video for New Computer

[IgnisFatuus]

My son just purchased a new computer with an ASUS A7N266 Mobo, 512Mb Corsair PC-2100 RAM, 80Gb Maxtor HD, Internal Audigy Drive sound card and and Xtacy Geforce 4 TI-4600 Video card. All of this is inside an Antec case with a 350W P/S. After pressing the on switch, all fans start up, but the monitor fails to receive any video signal, there are no POST code beeps, and it doesn't appear that the Hard Drive is spinning up. Tried putting in the Windows start up floppy but I get the same results....nothing. I checked all connections and they appear solid. Took out the Geforce 4 card and still the same results, no video, no POST. The boad has an onboard power LED and it is lit as it should be. The monitor should be good as it is the same one he was using on his old machine.
Any and all suggestions/hints are welcome.

 

[John]

Pull the vide card out and plug the monitor on to the onboard video connection to see if it will get a video signal. I read that another forum member was having the same problem with a GF4 & nForce motherboard.

 

[IgnisFatuus]

John, thanks for the reply. We tried removing the Geforce4 card and plugging the monitor into the onboard video connector and we got the same results, no video or POST.

 

[John]

Dang, I read your post again and you clearly stated you removed the GF4, sorry.

[*]try pulling all expansion cards out (PCI & AGP)
[*]disconnect all IDE devices from the motherboard
[*]Move ram to a different slot
[*]reseat the processor
[*]just for kicks try the monitor on another system to verify that it is still working

What happens?

 

[IgnisFatuus]

Thanks again, John, I'll give it a try when I go over to his house tomorrow.

 

[Maggotry]

John's suggestions are pretty standard for a "No POST" problem. Strip it down to the bare minimum needed for POST: CPU, 1 stick o' RAM, vid card. Don't even run power to the other IDE devices. Bare minimum. If it'll POST like this, then start adding 1 component at a time until you find the culprit. If it still won't POST, you've at least narrowed the problem to a handful of components.

Edit: If this PC has tech support, you'd be better off calling them. Messing around inside your case may void your warranty! :Q