Lenovo x3650 M5 Installation And Service Manual page 251

• See the specifications in the product documentation for the required torque values for the
wiring-terminal screws.
Important: Be sure to read the multilingual safety instructions on the CD that comes with the server
before you use the product.
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.
Step 1. Read the safety information that begins on "Safety" on page v and "Installation guidelines" on
page 289.
Step 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.
Step 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.
Step 4. Attach the dc power cable to the new power supply.
Figure 190. DC power supply rear view
Step 5. If you are installing a hot-swap power supply into an empty bay, remove the power-supply filler
from the power-supply bay.
Ground
-48V return -48V
Power input LED
Power output LED
Power error LED
.
Chapter 5 Removing and replacing components
239