Lenovo System x3650 M4 Installation And Service Manual page 89

Figure 58. 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.
Figure 59. Power supply installation
Step 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.
Step 7. Route the power cord through the handle and cable tie if any, so that it does not accidentally
become unplugged.
Step 8. Connect the other ends of the dc power cable to the dc power source. Cut the wires to the
correct length, but do not cut them shorter than 150 mm (6 inch). If the power source requires
ring terminals, you must use a crimping tool to install the ring terminals to the power cord wires.
The ring terminals must be UL approved and must accommodate the wires that are described on
page "Installing a hot-swap dc power supply" on page 73. The minimum nominal thread diameter
of a pillar or stud type of terminal must be 4 mm; for a screw type of terminal the diameter must
be 5.0 mm.
Step 9. Turn on the circuit breaker for the dc power source to which the new power supply is connected.
Step 10. Make sure that the green power LEDs on the power supply are lit, indicating that the power supply
is operating correctly.
Step 11. If you are replacing a power supply with one of a different wattage in the server, apply the new
power information label provided over the existing power information label on the server. Power
supplies in the server must be with the same power rating or wattage to ensure that the server
will operate correctly.
Power cord
connectors
Chapter 2
.
Installing optional devices
77