Fan Failure; Configuration Terminal Problems - HP 5920 Series Installation Manual

NOTE:
If the problem persists, contact the HP technical support for help.
To replace a hot swappable power supply, see

Fan failure

CAUTION:
The HP 5920AF-24XG and 5900AF-48XG-4QSFP+ switches require two same direction air flow fan
trays to function properly.
Do not operate the system with only one fan tray for more than 24 hours.
•
Do not operate the system without any fan tray for more than 2 minutes.
•
Do not operate the system outside of the temperature range 0°C to 45°C (32°F to 1 13°F) degrees.
•
Failure to comply with these operating requirements may void the warranty.
When a fan tray has problems, the system status LED is steady red and the system outputs alarm
messages.
To replace a failed fan tray, see

Configuration terminal problems

If the configuration environment setup is correct, the configuration terminal displays booting information
when the switch is powered on. If the setup is incorrect, the configuration terminal displays nothing or
garbled text.
No terminal display
If the configuration terminal displays nothing when the switch is powered on, verify the following items:
The power supply is supplying power to the switch.
•
• The console cable is properly connected.
The console cable has no problem and the terminal settings are correct.
•
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
•
"Installing/removing a power
"Installing/removing a fan
40
supply."
tray."