No LEDs appear

If LEDs are not lit for a blade server, the problem could be in the power supplies, the device itself, or the bay where the device is installed.

Problem

The LEDs for one of the blade servers are not lit, but LEDs for other blade servers are lit.

Perform these steps to resolve the problem:

Verify that the ac and dc LEDs are lit for all power supplies.
- If the dc LED is not lit on one or more power supplies, see The dc LED is not lit but ac LED is lit.
- If neither the ac LED or the dc LED is lit for a power supply, see The ac and dc LEDs are not lit for multiple power supplies.
From the advanced management module Web interface, attempt to power on the blade server by clicking Power/Restart from the Blade Tasks:
1. From the Blade Tasks, click Remote Control to start a remote session to the blade server.
2. Switch to the remote session to verify that the blade server is starting up.
3. If the blade server powers on and is functional, but there are no lights on the front bezel, there is a hardware failure in the bezel. Order the proper bezel assembly for the blade server.
Swap the blade server with a working blade server of the same type. If the problem persists with the blade server in the new location, contact IBM support for possible replacement.
If the LEDs on the replacement blade server are not lit, the problem may be in the blade server bay. See Isolating component failures.