◦ Power supplies are not seated properly.
◦ No power supplies are installed.
◦ A power supply failure has occurred.
◦ The power backplane, if required, is not seated properly.
◦ The PDU has issues.
◦ The Power On/Standby Button cable is disconnected.
• If the health LED indicates a degraded or critical state, review the system IML or use iLO to review the
system health status.
More information
Front panel LED power fault codes on page 30
Using the Server Health Summary
You can use iLO to display the Server Health Summary on an external monitor when the server is
powered on or off. This feature is useful for troubleshooting when the server will not start up, and can also
be used to view the server IP address and other health information.
Prerequisites
• The server has a UID button.
• An external monitor is connected.
Procedure
1.
Press the UID button on the server.
CAUTION:
Press and release the UID button. Holding it down at any time for more than 5 seconds initiates
a graceful iLO reboot or a hardware iLO reboot. Data loss or NVRAM corruption might occur
during a hardware iLO reboot.
The Server Health Summary screen is displayed on the external monitor.
28
Using the Server Health Summary
