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Grasp the two handles of the fan tray with the side marked TOP facing up, and slide the fan tray
3.
along the guide rails into the slot until the fan tray seats in the slot and has a firm contact with
the backplane.
Figure 45 Installing a fan tray
IMPORTANT:
• By default, the switch uses the same air flow direction as the HPE X722 port to power fan tray.
• After you install the HPE X721 power to port fan tray, use the fan prefer-direction command to
set the switch to use the same air flow direction as the fan tray. If the switch uses a different air
flow direction, the system outputs traps and logs to notify you to replace the fan tray.
Configuration terminal display problems
No display
Symptom
The PC displays nothing when the switch is powered on.
Solution
To resolve the problem:
Verify that the power supply is supplying power to the switch.
1.
Verify that the console cable is correctly connected.
2.
Verify that the console cable does not have any problems and the PC settings are correct.
3.
If the problem persists, contact HPE Support.
4.
Garbled display
Symptom
The display on the PC is garbled.
Solution
To resolve the problem:
42
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