So I was looking through my BIOS settings because I was told overclocking my FSB might help improve my gaming performance. But when I looked in Advanced Chipset Features, I didn't see anything to do with FSB or clocking. I looked around and nothing struck out as obvious. And no I'm not the greatest with computers, so I'm probably just overlooking something. Computer: Acer Intel Pentium Dual-core E2140 3GB Memory GeForce 8600 GTS video card.

The BIOS Acer supplied may not allow you to overclock at all. You could try using overclocking software, though that is certainly not as good.

I would prefer not to run overclocking software on my computer, I really only want a slight upgrade to its performance, nothing substantial. Are there any other ways that I might improve it? Other than buying a new video card or something of the such, I'm looking for a cheap way to get the most out of my PC.

As kx5m2g stated, you need software to overclock.

Alright, well thanks anyways guys. I'll just wait until Windows 7 comes out I guess then.

You probably have absolutely zero overclocking options with an Acer PC. Manufacturers usually disable those features in order to prevent idiots from frying their systems. That's really not an ideal gaming cpu anyway though. I wouldn't settle for anything less than a pentium E5200 as far as the CPU goes. The CPU though doesn't look like your main problem. Your graphics card is weak as far as gaming goes! I'd settle for no less than a Geforce 8800 class card if I was even half serious about gaming.