Power Supply Led - Lenovo ThinkSystem SD550 V3 System Configuration Manual

Status Color
On Yellow
Off None
4 NMI button
Press this button to force a non-maskable interrupt to the processor. A pen or the end of a straightened
paper clip might be needed to press this button. This button can also be used to force a blue-screen memory
dump (only when you are directed to do so by Lenovo Support).

Power supply LED

This topic provides information about various power supply LED status and corresponding action
suggestions.
• The following minimal configuration is required for the node to start:
– One processor in socket 1
– One memory module in DIMM slot 4
– One power supply in PSU slot 1
– Three system fans
The following table describes the problems that are indicated by various combinations of the power-supply
LED and the power-on LED and suggested actions to correct the detected problems.
Figure 12. Power supply LED
Description
An error has been detected on the server.
Causes might include one or more of the
following errors:
• The temperature of the server reached
the non-critical temperature threshold.
• The voltage of the server reached the
non-critical voltage threshold.
• A fan has been detected to be running at
low speed.
• The power supply has a critical error.
• The power supply is not connected to
the power.
The server is off or the server is on and is
working correctly.
Action
Check the Event log to determine the exact
cause of the error.
None.
.
Chapter 2 Hardware components
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