System Maintenance; Power Supply Units - Nvidia MetroX-3 XC TQ8400 Long-haul 1U User Manual

System Maintenance

This chapter contains the installations and Un-installation instructions of the following customer
replaceable units:

Power Supply Units

MetroX-3 XC is equipped with two replaceable power supply units that work in a redundant
configuration. The below figure shows the power side of the system which includes a hot-swap
power supply unit (PSU).
Extracting and Inserting the Power Supply Unit

The power supply is only hot-swappable if you have a redundant system with two power
supplies installed. If you only have one power supply installed, before removing or replacing
the power supply, you must first take the appliance out of service, turn off all peripheral
devices connected to the system, turn off the system by pressing the power button, and
unplug the AC power cord from the system or wall outlet.
The power supply can be replaced in case it fails.
To extract a power supply unit:
Step 1. If a filler panel is installed, remove the filler panel.
Step 2. If a power supply is installed, grab the handle with your thumb pointing toward the latch.
Push the latch with your thumb towards the handle while you pull the power supply out of the
appliance.
To insert a power supply unit:
Step 1. Make sure the mating connector of the new unit is free of any dirt and/or obstacles.

Do not run the appliance with openings due to missing parts. This may cause overheating
due to improper airflow.
Step 2. Insert the power supply unit by sliding it into the opening, until a slight resistance is felt.
Step 3. Continue pressing the power supply unit until it seats completely. The latch will snap into
place, confirming the proper installation.
Step 4. Insert the power cord into the supply connector.
Step 5. Insert the other end of the power cord into an outlet of the correct voltage.
27