Apple Mac 8600 - Manual (Page 68)

Troubleshooting Symptom Charts/System - 5
System
Does not power on,
screen is black, fan is
not running and LED
is not lit
1 Check power cables.
2 Plug monitor directly into wall socket, and verify monitor
has power.
3 WS 9650 Only: Verify Ultra Wide SCSI cable is not damaged
and that Velcro straps are secure and holding cable away
from fan on side access panel. If necessary, replace Velcro
straps and/or Ultra Wide SCSI cable if damage is visible.
4 Reseat ROM SIMM (if present) and processor card. The logic
board must have a processor card installed to operate.
5 Reset Cuda chip. (Refer to The Cuda Chip in Basics for
instructions.)
6 Reset logic board. (Refer to Resetting the Logic Board in
Basics for instructions.)
7 Replace power cord.
8 Replace power supply.
9 Replace processor card.