HP 5120 EI, 5120 SI, 5120 48G Maintenance and troubleshooting, Password loss, Power supply failure

Maintenance and troubleshooting

Password loss

Console login password loss

If you forget the console login password, access the Boot menu:

BOOT MENU

1.Download application file to flash

2.Select application file to boot

3.Display all files in flash

4.Delete file from flash

5.Modify bootrom password

6.Enter bootrom upgrade menu

7.Skip current configuration file

8.Set bootrom password recovery

9.Set switch startup mode

0. Reboot

Enter your choice(0-9):

Enter 7 and restart the switch. The switch reboots with empty configuration, and you can log in through the console port without entering the password to check the configuration file for the user password.

Boot ROM password loss

Contact the HP technical support for help.

Power supply failure

The 5120 EI switches and the 5120 SI switches use fixed power supplies. All 5120 EI switches and the 5120-24G-PoE+ SI switch support three power input modes: AC input, RPS DC input, and concurrent AC and RPS DC inputs. All other 5120 SI switches have only one AC power input.

To identify a power failure:

•On any 5120 EI switch, look at the system status LED and the RPS status LED of the switch. For more information, see “LEDs (for the 5120 EI switches).”

•On the 5120-24G-PoE+ SI switch, look at the power LED and the RPS status LED of the switch. For more information, see “LEDs (for the 5120 SI switches).”

•On any other 5120 SI switch, look at the power LED of the switch. For more information, see “LEDs (for the 5120 SI switches).”

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