I have been using a mercury motherboard with p4 processor for 5 years. Suddenly one day I was not able to seen anything on the monitor as its going to idle mode. I can see my processor fan running, startup light on Motherboard, harddisk spinning. Recently I bought a new RAM to see if its a RAM problem but then also the same condition. I tried using POST debug card where it displayed 0000 which I believe is an initiative code which means nothing but motherboard is not working. Please anybody help me out in this issue.