Installation guide

36
Maintenance and troubleshooting
Power supply failure
You can use the LEDs on the power supply to identify a power supply failure. For more information about
the LEDs on a power supply, see HP A58x0AF 650W AC (JC680A) & 650W DC (JC681A) Power
Supplies User Guide.
If the LEDs on the power supply are not steady green (active) or blinking green (standby), the power
supply is faulty.
To resolve the problem:
1. Verify that the power cord is connected securely.
2. Verify that the power source meets the requirement.
3. Verify that the temperature of the switch is in the normal range and the power supply has good
ventilation.
4. If the problem persists, contact HP Support.
To replace a hot swappable power supply, see "Installing/removing a power supply."
Fan tray failure
CAUTION:
• If one fan tray fails, perform the following tasks:
{ Finish replacing the fan tray within 24 hours and do not remove the failed fan tray before replacement when
the ambient temperature is below 27°C (80.6°F).
{ Replace the fan tray immediately when the ambient temperature is above 27°C (80.6°F).
• If both fan trays fail, finish replacing the fan trays within 2 minutes.
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 "Installing/removing a fan tray."
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 display on the configuration terminal
The configuration terminal has no display when the switch is powered on.
To resolve the problem: