pc boots for a sec and then displays nothing

[PHIPH]

my pc boots for a sec and then displays nothing,the mother board still shows that it has power.
i have tried the monitor and its working properly with other pcs.
i need a quick help about this .
thanx

[adam_k]

When you say boots for a sec, do you get past POST (BIOS) ?

[caperjack]

its been my experince that this is usually caused by many things,over heating and bad power supply are the top 2 for me, as a computer repair kind of guy

[silvercats]

what do you mean? what do you see last on the screen? Does the fan turns on for a sec and then turns back off?

[BigPaw]

Which make and model and how old is it, please? Or, is it home made? Have you made any changes recently?

Silvercats makes a good point, what is the last thing you see on your screen?

[benmar]

try to change your power supply....see what happens

[Rik from RCE]

You need to check dates, this thread has been dead for 2 months!!