Sony Pcg-fx140 help

Hi, I'm new here I have an old Sony Pcg-fx140 and I've been trying to boot it up since the last few months. So I know it the motherboard I predict that its dead but the power is the only

factor in question. the laptop takes 19.5v and 3.0 amps while my universal power adapter only gives out (measured with a meter) 16.52v and the amps is 2.0. besides thats the only reason that

it keeping me from thinking its dead and moving on with my life. Btw I have the whole thing disassembled I cleaned out everything dust etc. (careful about static too) and all i want is a beep form this thing, well I've done my research and hoping for an option

further info: my system has no keyboard (previous owner tore the keys off *angry*) no ram and thats about it.

thanks for all the future help