|just from my experience, if you don't hear at least one beep|
from spkr, major problems (unless spkr cables cut!). either
memory failure , or general motherbd failure some sort. If
you suspect the system has actually booted but no video,
try running "blind" to get some sound or try booting off
boot disk to dos and see if video. Also, some laptops have
a svga output, try hooking up monitor to that port and see.