CPU=Central Processing Unit <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />. Well, two out of three aren't that bad <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />.
If your computer is like a year old, you're most likelly useing the AGP-port for your graphic card. If it isn't something's wrong <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />, and the most likelly is that you're not talking about PCI, but about PCI Express <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> (now is when you go check that out <img src="/ubbthreads/images/graemlins/tongue.gif" alt="" />).