Replacing An Ac Or Dc Power Supply - Dell Z9100-ON Installation Manual

5. If you have a redundant PSU (a second PSU), repeat steps 1 through 4 above using the second PSU
slot on the Z9100-ON system.
NOTE: The Z9100-ON powers up when the cables are connected between the power supply
and the power source.

Replacing an AC or DC Power Supply

To replace an AC or DC power supply, follow these steps:
CAUTION: Disconnect the power cord before removing the power supplies. Also, disconnect all
power cords before servicing.
NOTE: The PSU slides into the slot smoothly. Do not force a PSU into a slot as this action may
damage the PSU or the Z9100–ON chassis.
NOTE: If a PSU fails, you must replace the entire unit. There are no field serviceable components in
the PSU. To request a hardware replacement, see
NOTE: If you use a single PSU, install a blank plate in the other PSU slot. If you are only using one
power supply, Dell recommends installing the power supply in the first slot (PSU1) and installing a
blank plate in the second slot (PSU2).
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 PSU to slide it into the power supply bay.
4. Attach the power cord to the replacement PSU.
NOTE: The system powers up when the cables are connected between the power supply and
the power source.
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Technical Support.
Power Supplies