I recently had a problem with my second hard drive not working....while trying to fix that I think I wrecked my memory (I believe I bumped it.) So I first replaced it with a smaller amount of memory (that I borrowed from my roommate.)Then when my computer would boot up, it would stop and say "CPU is Unworkable" it then tells me to press F1 to continue...I do, but the computer boots up at only half the speed (500 mhz as opposed to its normal 1 ghz.) When I try to restart the computer and adjust the speed in the BIOS to the default speed, it doesn't boot up at all. I then have to reset the CMOS jumper and start over again. I have tried a different video card and a different power supply. I have a Abit KT7A motherboard with a AMD Athlon 1 ghz processor with Windows 2000. Yesterday, I replaced the memory with PC 133 256mb thinking that it would remedy the problem, but it hasn't. AND it seems that I have the latest BIOS update as well...any other ideas?