IBM x3630 M4 Type 7158 Installation And User Manual page 104

10. If you have other devices to install or remove, do so now. Otherwise, go to
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System x3630 M4 Type 7158: Installation and User's Guide
6. Connect the power cord to a properly grounded electrical outlet.
7. If the server is powered on, make sure that the error LED on the power supply
is not lit, and that the dc power LED and ac power LED on the power supply
are lit, indicating that the power supply is operating correctly.
8. 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.
9. If you are adding a power supply to the server, attach the redundant power
information label that comes with this option on the server cover near the
power supplies.
"Completing the installation" on page 89.