RoHe
6 Indium

RE: XPS 8500 will not start, orange light on motherboard, will not boot, BIOS inaccessible, black screen

If the power button is steady white, you might also suspect that the monitor failed.

Can you test this monitor on a different PC or a different monitor on this PC?  I'd do that before going any further.

Ron

   Forum Member since 2004
   I am not a Dell employee