Can anyone please tellme the best way to calculate the maximum power requirements for a PC system. For example I want to calculate the power requirements of the following system: a supermicro P4SGA mother board with a 2.4Ghz P4, i want to compare this to the same board using a 2.2Ghz Celeron. I've been looking for the maximum power requirements for each chip, but have yet to find them. Please help!