Computer/Monitor wont start.

[mtlhunter]

I got an old P3 450 Mhz. And not too long ago my brother wanted me to add his microphone. So, while I added his microphone to the back of the computer, the screen turned off. (Like there was no input, but it had power). Then it unplug the monitor and plugged it back in. And still same thing. I decide to restart, the computer. The computer couldn't restart, I herd loud sounds before it started (not the usually one beep). I decide to take the tower to a different monitor same thing occur. What might of happen? Video card fried?

[networkguy]

Sounds to me like the video card. Do you get any beep codes at boot up? Try replacing the video card.

NG

[nightwolf]

i agree with NG on this one it's most likely the video card

[AMD]

Several things can cause that and there is no point of making assumptions without taking a look at it first.

If you don't feel comfortable working inside a system, take it to a computer store.

Good luck.

What did the "loud noise" sound like?

[mtlhunter]

I have sloved the problem. The loud noise was beeps. I took out the video card, and put it back in, when I thought it was in, I push it a little more and it seem to have went in the motherboard then when I already thought it was in. So, when I started up everything went all good. Thanks for your replies and helpful suggestions. I just don't know what made it came out.

[AMD]

Moving stuff around/moving the system back to plug something in can cause that. Common problem.