Hi, I got a pretty OLD computer, AMD 900 mhz with 512 mb ram, and 120 mb ati video card. I was download a big PROGRAM over the internet and I left it overnight. When I got up, I got the message that has to do with video card problem and it said to reboot to get it to normal something like that. So I restart my computer and everything seem to be fine. Until I run a movie and noticed that there is static over the speaker and headphone. After testing the speaker on ANOTHER computer and see that the speaker is fine, than I open the case and check to see if everything is plug-in.

I noticed that everything is plugin fine except a 4 pins cable from the sound card is unpluged. So i went to the sond card mnual and it said to plug it into the audio slot in the cd rom drive, which I did. when I boot up, normally the computer will turn the monitor on and got through the startup. But this time, it just beep and beep and did not turn the monitor on. So I knew that was a mistake, so I unplug the cable and restart and same thing happen. Then I waited a few minutes and restart and everything went fine and run smoothly.

I knew the pronblem with the static is mostly likely the sound card. So I went tothe store and bought a new sound card to replace, and the same problem started again (monitor not on and beeping). So I switch back the old sound card thinking it might be hardware conflict resulted from the new sound card, but the beeping and monitor is on turn on continues. I noticed that the CPU fan is working and video card fan is working and the fan from the power supply is working and the monitor is working when tested on a DIFFERENT computer.

Please HELP. Thank you. I am so bad with computer. It seems like I turn a very minor problem into a major one.