I'm running a P3B-F (slot1) motherboard and an 850 MHz CPU. I have 128 MB PC133 memory (single DiIMM, I just caught a deal on a generic 256 MB Dimm I'll get tomorrow). When I first installed the CPU, I o/c'd over 1 GHz, but now I get the dreaded BSOD when Windows2000 tries to load. I'm very stable and cool at 977 MHz. My vid is a 2X AGP 32 MB AYI Rage Fury, and it's my first suspect. I'm upgrading as soon as the 9700Pro AIW preice stabilizes. I plan to do the MB/Memory/CPU upgrade in 6-9 months.