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Note: Depending on the power supply type, your power supply might look slightly different from the
following illustration.
CFFv4 power supply LEDs
Figure 16. Power supply LEDs
Description
LED
The input status LED can be in one of the following states:
Input status
• Off: The power supply is disconnected from the AC power source.
1
• Green: The power supply is connected to the AC power source.
The output status LED can be in one of the following states:
• Off: The server is powered off, or the power supply is not working properly. If the server is
powered on but the output status LED is off, replace the power supply.
• Slow blinking green (about one flash every two seconds): The power supply is in cold
Output status
2
redundancy active mode.
• Fast blinking green (about 2 flashes each second): The power supply is in cold redundancy
sleep mode.
• Green: The server is on and the power supply is working normally.
• Off: The power supply is working normally
Fault LED
3
• Amber: The power supply may have failed. Dump the FFDC log from the system and contact
Lenovo back end support team for PSU data log reviewing.
CRPS power supply LED
Figure 17. CRPS power supply LED
.
Chapter 2
Server components
35
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