Power-Supply Leds - Lenovo 5457 Installation And Service Manual

Power-supply LEDs

This section describes the power-supply LEDs on the rear of the server and the suggested actions to correct
the detected problems.
The following minimum configuration is required for the server to start:
• One microprocessor
• One 1 GB DIMM
• Power supply
• Power cord
• One cooling fan
The following illustrations show the LEDs and connectors on the rear of the respective 4U and 5U server
models.
Power connector
Power switch
Serial 1 (Com1)
Video
USB connectors
Figure 71. LEDs and connectors on the rear of the 4U server model with non-hot-swap power supplies (no power supply
LEDs present)
Ethernet link status
LED
Ethernet
connector 1
Ethernet transmit/
receive activity
LED
Ethernet link status
LED
Ethernet
connector 2
Ethernet transmit/
receive activity
LED
.
Chapter 4 Troubleshooting
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