Replacing A Dc Power Supply - Dell Z9000 Manual

NOTE: If a PSU fails, you must completely replace it. There are no field serviceable components in
the PSU. To request a hardware replacement, refer to
NOTE: If you use a single PSU, install a blank plate in the other PSU slot. Dell Networking OS
recommends using power supply 1 (PSU1) as the blank plate slot.
1. Disconnect the power cable from the PSU.
2. Use the grab handle to slide the PSU out of the power supply bay.
3. Use the grab handle on the replacement unit to slide it into the power supply bay.
4. Tighten the securing screws on the replacement PSU with a screwdriver. Ensure that the PSU is
secure.
5. Attach the power cord to the replacement PSU.
NOTE: The system powers up as soon as the cables are connected between the power supply
and the power source.

Replacing a DC Power Supply

To replace a DC power supply, follow these steps.
NOTE: The PSU slides into the slot smoothly. Do not force the PSU into a slot as this action may
damage the PSU or the chassis.
1. Turn the DC power source OFF.
2. Remove the small plastic cover over the DC cable connectors. Do not throw away the cover as you
will replace it when you complete the installation.
3. Disconnect the power cable from the PSU.
4. Use the grab handle to slide the PSU out of the power supply bay.
5. Use the grab handle on the replacement unit to slide it into the power supply bay.
6. Replace the small plastic cover over the DC cable connectors.
7. Tighten the securing screw on the side of the PSU. Ensure that the PSU is secure.
8. Attach the power cables.
9. Turn the DC power source ON.
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Technical Support.
Power Supplies