To install a hot-swap dc power supply, complete the following steps:
Attention: Only trained service personnel other than IBM service technicians are
authorized to install and remove the -48 volt dc power supply, and make the
connections to and disconnections from the -48 volt dc power source. IBM service
technicians are not certified or authorized to install or remove the -48 volt power
cable. The customer is responsible for ensuring that only trained service personnel
install or remove the -48 volt power cable.
1. Read the safety information that begins vii and “Installation guidelines” on page
38.
2. Touch the static-protective package that contains the hot-swap power supply to
any unpainted metal surface on the server; then, remove the power supply
from the package and place it on a static-protective surface.
3. Turn off the circuit breaker for the dc power source to which the new power
supply will be connected. Disconnect the power cord from the dc power
source.
4. Attach the dc power cable to the new power supply.
5. If you are installing a hot-swap power supply into an empty bay, remove the
power-supply filler from the power-supply bay.
6. Grasp the handle on the rear of the power supply and slide the power supply
forward into the power-supply bay until it clicks. Make sure that the power
supply connects firmly into the power-supply connector.
92 IBM System x3550 M4 Type 7914: Installation and User’s Guide
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