Chapter 5
Troubleshooting
Identifying and Diagnosing Hardware Problems
141
Identifying and Diagnosing Hardware Problems
Should a hardware failure occur, the system LED and the SEL will help you identify the problem:
•
LEDs. The lights on the front bezel of the server change color and blink in different patterns to help
identify specific hardware problems. LEDs on the rear panel of the server display LAN status.
•
The SEL provides detailed information about the errors identified by the LEDs. Use the iLO MP to view
the SEL.
Troubleshooting Using LEDs
If you suspect a hardware failure, the power and system LEDs, located on the front control panel, will help
you identify the problem. The following sections describe their functions. Additional LEDs are provided on the
system board (See “System Board LEDs” on page 144). You may want to back up your data or replace a
component before it fails.
The boot process is monitored by the iLO MP. With the current iLO MP functionality, the four diagnostic
LEDs are disabled (always off). You can monitor server operation from a console using the iLO MP.
Figure 5-1 shows the control panel LEDs.
Figure 5-1
Control Panel LEDs
Power and System LEDs
The power and system LEDs indicate the state of the system. When the system LED is blinking yellow or red,
a problem exists.
Table 5-3 lists the system LED states.
Table 5-3
System LED States
System LED
State
Off
ac power off if power LED is off.
Solid green
Running OS.
1
2
3
4
LAN System
System
LED
Power
On/Off
LED
Power Button
Diagnostics LEDs
(Disabled)
Locator Button and LED
LAN
LED
Summary of Contents for 9000 rp3410
Page 8: ...Contents 8 ...
Page 128: ...Installing the System Troubleshooting Chapter 3 128 ...
Page 130: ...Installing the System Troubleshooting Chapter 3 130 ...
Page 146: ...Chapter 5 Troubleshooting Cleaning Procedures 146 ...
Page 240: ...Appendix A Replacement Parts Replaceable Parts List 240 ...
Page 248: ...Appendix B Utilities iLO MP 248 ...
Page 250: ...Physical and Environmental Specifications Appendix C 250 ...