MB is Epox EP-8KTA3PRO, with 2/05/02 Award BIOS (latest version from Epox website). System runs Windows XP home SP2. The Athlon MP 1100 CPU works fine. Installed an XP 2000+ Palomino which Epox says is supported by MB, and system won't even begin to boot or show POST and monitor will not wake. After 3 CPU swaps back and forth with same result, and swap of video card, the old CPU runs fine, and the new one doesn't run at all. I believe the 2000+ CPU is dead. Any comments? Thanks.