Sun Microsystems Cobalt LX50, User Manual

Page: 86 / 138

Chapter 5: Maintaining the Server
5-2 User Guide—Sun Cobalt LX50 Server
Tools and Supplies Needed
All that is needed is an antistatic wrist strap (recommended).
Determining a Faulty Component
To determine and isolate a faulty component, refer to Chapter 6, “Troubleshooting the Server.” This chapter can help
you isolate a faulty component using the following methods:
• Status LEDs (see “Status LEDs” on page 6-3)
• Fault LEDs (see “Server Main Board Fault LEDs” on page 6-5)
• POST LEDs, beep codes, and displayed error messages (see “Diagnosing System Errors” on page 6-2)
• Platform Confidence Test (see “Platform Confidence Test (PCT)” on page 6-2)
• System Setup Utility (see “System Setup Utility (SSU)” on page 6-2)
Safety: Before You Remove the Cover
Before removing the system cover to work inside the server, observe these safety guidelines:
1. Turn off all peripheral devices connected to the system.
2. Turn off the system by pressing the power button on the front of the system. Then unplug the AC power cord
from the system or wall outlet.
3. Label and disconnect all peripheral cables and all telecommunication lines connected to I/O connectors or ports
on the back of the system.
4. Before handling components, attach a wrist strap to a chassis ground of the system (any unpainted metal
surface).