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Replace Chassis Components
Replace a Fan Tray
You can remove a fan tray, to either replace it with another fan tray, or to replace a fabric card located behind
it.
The switch uses four fan trays but it can operate with three fan trays while you replace one or remove one, to
replace one of the fabric cards behind the fan tray. When you remove one fan tray, the other fan trays speed
up their fans to maintain the designed airflow.
Note
Note
To replace a fan tray, you must perform the following functions:
1. Remove the fan tray.
2. Install a fan tray.
Remove Fan Tray
Remove only one fan tray at a time during switch operations. If you remove more than one fan tray at a time,
the switch shuts down within two minutes unless you replace the extra fan trays that you removed within that
time.
Step 1
Unscrew the four captive screws on the front of the fan tray until each screw is free of the chassis.
Step 2
Hold both handles on the front of the fan tray with both of your hands and pull the fan tray out of the slot.
Step 3
Set the fan tray on antistatic material or inside an antistatic bag.
Install Fan Tray
Before you begin
• Fan tray slot is open in the chassis.
• If you are replacing a fabric card behind the open fan tray slot, ensure that the fabric card replacement
If you cannot replace a fan tray within three minutes, we recommend that you leave it in the chassis until you
are ready to replace it.
Never remove two fan trays at a time during operation, the switch allows up to two minutes of operations
before shutting down unless you replace the missing fan tray within that time. If the switch senses an over
temperature condition when multiple fan trays are removed, the shutdown can occur in less than two minutes.
operation is completed.
Cisco Nexus 9804 NX-OS Mode Switch Hardware Installation Guide
Replace a Fan Tray
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