Troubleshooting Procedures - Sun Microsystems Ultra 60 Service Manual

4
C H A P T E R

Troubleshooting Procedures

This chapter describes how to troubleshoot possible hardware problems and
includes suggested corrective actions.
This chapter contains the following topics:
Power-On Failure—page 4-2
Video Output Failure—page 4-3
Disk Drive or CD-ROM Drive Failure—page 4-3
Power Supply Test—page 4-5
DIMM Failure—page 4-7
OpenBoot PROM On-Board Diagnostics—page 4-8
OpenBoot Diagnostics—page 4-13
4-1