I have a dead mobo and bought a refurb'd mobo and put everything back together. The laptop will still not power up. I have removed the refurb'ed mobo and I'm trying to test it without putting everything back together. I only plugged in the bezel with the power switch, a stick of RAM, the CPU and fan with no signs of power.
With the mobo removed, what are the minimum components needed to test? I am just hoping for beeps or the CPU fan spinning.