Identifying And Diagnosing Hardware Problems; Troubleshooting Using Leds; Power And System Leds; Table 5-3. System Led States - HP 9000 rp3410 User's & Service Manual

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
Locator Button and LED

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
Off
Solid green
Chapter 5
LAN
LED
Diagnostics LEDs
(Disabled)
1 2 3 4 LAN System
ac power off if power LED is off.
Running OS.
Identifying and Diagnosing Hardware Problems
Power Button
Power
On/Off
System
LED
LED
State
Troubleshooting
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