Thanks for pointing me in the right direction! I checked, and the FSB was set wrong. In fact, the processor speed option was set to manual, and the FSB set to 100/ something. When I changed the processor speed to 2.53mhz, it changed the FSB. The only problem now is that it won't load the OS. It boots and goes through POST, but when it gets to the OS load, it just sits there with a dark screen.
Any ideas? It's an Asus P4T533-C mobo with the latest bios (considering this is a 4 year old board).
I just checked and it looked like setting the mobo to defaults may have fixed it, oddly enough. Sandra now shows the CPU at 2.54 and the FSB at 534. I have Rambus memory (I know, it's like I bought a beta-max). So far, so good. I do have one question:
My mobo shows my graphics card "memory aperture" at 64 MB, but I have a 128 MB AGP card (no onboard video). Should that setting be changed to 128?