power vanishing....

[rounit]

i have a pentium 4 system with 845 chipset based motherboard n 128 RAM......

when i start the button of the cabinet the the CAbinet led (red)starts for a while then after 2-3 seconds the cabinet swithes off and there is no display either not even the BIOS sound...


what should is do????? please advice....

 

[assasin]

first take out the ram module,clean the contact points and then clean the slot and reinsert the ram.the check psu.