Well this is very depressing. I had to replace the CPU in my computer today, A intel pentium4 2.0Ghz with a 400 mzh FSB. The chip i got today was the same specs, but now whenever i boot I see a message about "bios update information invald CPUID" and the computer locks up after about 10 minutes of use. but no error sound like the chip isnt properly seated or such. The specs on my computer. Intel Pentium 4, 2.0 ghz 400mhz FSB Socket 478 Asus Mobo, I think its one of the P4B's Socket 478 400 PSU Leadtek G4 ti4600, which i was about to upgrade to a BFG 6800 GT before this happened. Now common sense would tell me that something is wrong with the chip. But considering the chip cost me $150 (a rip off im sure) and the store wont take returns on opened CPU's and Intels policy would probably take weeks to get a replacement... Im kind hoping theres some other cause to this problem. I just don't know what. The Bios message raises some flags to be sure, but the chips stats are exactly the same as the one i replaced, so I dont know exactly what to do to fix that error. *sighs* Im really hoping someone can help me. this is really depressing and it makes me kinda feel helpless to be unable to fix it on my own.