When I turned on my computer, there is no signal going into my monitor. I connected my monitor to another computer and it works fine. The red indicator light that normally blinks when the hard drive is loading, just stays on, I can hear the computer hard drive starting up and my CD-Rom lights up for a couple of seconds like it normally should.

Once I started my computer it just seems to freeze. All my external and intrnal connection seems to be fine. I added a 256 mb sdram one week ago and it was working fine for a week. We used the computer the night before. When I started it up in the morning it seems to died. Can it be my motherboard or my CPU? Can anyone solve this problem?

Welcome, Bokmo! http://www.PCGuide.com/ubb/biggrin.gif

The first things to do in any situation like this:

Remove and re-install the CPU, RAM, and video card.

Start up while you have the case open, and make sure the CPU fan is running.

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"I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question."
-- Charles Babbage, mathematician, computer pioneer, analytical engine designer (1791-1871)
-- (Question: 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?')

"Just because I don't care, doesn't mean I don't understand."
-- Homer Simpson