Fan Failure (A5120 Ei Switches Only); Console Terminal Problems - HP A5120 EI Series Installation Manual

The switch is securely connected to the RPS.

The RPS is working correctly.

NOTE:
If the problem persists, contact HP Support for help.

Fan failure (A5120 EI switches only)

You can check the system status LED and the seven-segment LED of an A5120 EI switch to identify a fan
failure. If both LEDs are behaving as described in
Table 13 LED behaviors that identify a fan failure
LED
System status LED
Seven-segment LED
The A5120 EI switches use fans that are not user-replaceable. If a fan failure occurs, contact HP Support
for help and do not attempt to fix the problem yourself.

Console terminal problems

If the console terminal setup is correct, the console terminal displays boot information when the switch is
powered on. If the setup is incorrect, the console terminal displays nothing or garbled text.
No terminal display
If the console terminal displays nothing after the switch is powered on, check the following:
The power supply is supplying power to the switch.

The console cable is connected properly.

The terminal settings are correct.

The console cable is good.

Garbled terminal display
If terminal display is garbled, verify that the following settings are configured for the terminal, for
example, HyperTerminal:
Baud rate—9,600

Data bits—8

Parity—none

Stop bits—1

Flow control—none

Emulation—VT100

Table
Mark State
PWR Steady red
The LED flashes F for fan failure.
Unit
48
13, a fan failure has occurred.