Can anyone help me, I have just got my P5B mobo & Core2 cpu. with everything in place i went to boot it up to go into the bios and nothing happened, it came on for a second then went off then came back, the cpu fan was running & that was it..no POST. I was told by my seller that i needed to get a single core cpu to boot it up and update the bios, is this true or is he pulling my leg. Please can any one help..Cos