Hmm, not booting. This has probably been in storage for many years. This unit is very clean and the battery had been removed, with no damage to the area. These was a WarpEngine installed, but I also tried a A3640 in it. I pushed on the socketted chips but no go so far. The socketed chips were all raised. I suspect it is something minor from being in storage for so long. I'll start tomorrow by completely reseating all socketted chips.
Any other suggestions before I break out the C= service manual?