Lenovo 3633 Installation And Service Manual page 145

Figure 67. Fixed power supply installation
Step 2. Connect the internal power-supply cables from the power supply to the power supply connector
and CPU power connector on the system board. To locate the power connectors on the system
board, see "System-board connectors" on page
Step 3. Route the internal power-supply cables, securing them with the retention clips.
Step 4. Test the power supply:
a. Connect one end of the ac power cord for the new power supply into the power supply
connector, and connect the other end of the power cord into a properly grounded electrical
outlet. Make sure that the standby power LED on the system board is lit. See
LEDs" on page
b. If the standby power LED is not lit, discontinue this procedure and obtain a new power supply.
c. Press the power-control button. Make sure that the power-on LED on the front of the server is
lit.
If the server starts, proceed to the next step. If the server does not start, disconnect the ac power
cord and call for service.
Step 5. Turn off the server and disconnect the ac power cord.
Step 6. Complete the parts replacement. See
Step 7. Press the power-control button. Make sure that the power-on LED on the front of the server is lit.
Removing a hot-swap power supply
When you remove a power supply, observe the following precautions.
CAUTION:
The power control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also might have more than one power cord. To
remove all electrical current from the device, ensure that all power cords are disconnected from the
power source.
24.
"Completing the parts replacement" on page
21.
.
Chapter 7 Removing and installing server components
"System-board
168.
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