Thank you for your help. Yes, it is a desktop (220), wrong forum, whoops. It looks like I might know just enough to get into trouble.
I looked at the manual, and now know where to find it. I have opened the unit and took a look around, and it looks so....simple, but I know from reading stories and talking to friends, that it can be....not so simple.
If I actually get the screwdrivers out, I am sure that I will have more questions. Hopefully I will at least post in the correct forum.
Again, thank you for your time and input.