Troubleshooting Procedures - Sun Microsystems Ultra 80 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:
Section 4.1 "Problems During Initial Set-up" on page 4-2
Section 4.2 "Power-On Failure" on page 4-3
Section 4.3 "Video Output Failure" on page 4-4
Section 4.4 "Hard Drive or CD-ROM Drive Failure" on page 4-5
Section 4.5 "Power Supply Troubleshooting" on page 4-6
Section 4.6 "DIMM Failure" on page 4-9
Section 4.7 "OpenBoot PROM On-Board Diagnostics" on page 4-10
Section 4.8 "OpenBoot Diagnostics" on page 4-15
Section 4.9 "How to Get Technical Assistance" on page 4-29
-1