ldburroughs

I don't play any games on the system in question. I only do some minor video editing and access the internet. About a year ago my system failed because of a bad power supply and when we got it back up and running again I noticed some new sounds on the system. For instance, when you press the power on button and it starts to turn itself on it makes a loud, short static sound and proceeds to boot up properly. If the volume is up even half way and nothing is playing, the speakers hum. If I move anything on the screen (scrolling or even just the mouse) it makes an annoying humming sound. Other than this background noise everything is working well. No other known prolbems to speak of.

I currently have the sound card that came with the computer three years ago and that's it. I'm certain it is basic and generic but plays music and video just fine. I've upgraded just about everything else and will upgrade the mobo and cpu next year. After that I should be current. Other than playing games, is a sound card really necessary? I can play music and edit videos just fine. I don't listen to music directly through my computer anyway. Does anyone think a sound card will help with the humming problem? Thanks for all of your comments.