it depends on the mfg date
ie sept or later was gen2,eariler was gen1
if gen 1 leave out video card,and run base band video >vga<,gen 1 did not beeb on bios
when u swapped the bios bat u made it brain dead,to fix this vga,key-board
set the hard drive and date/time :date time very important: the first boot device :hard drive:
save exit reboot :not power off:
it should boot to the root
!mfg-date is very important!
ed