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4. Grasp the handle on the rear of the power supply and slide the power supply
5. Connect the power cord for the new power supply to the power-cord connector
6. Connect the other end of the power cord to a properly grounded electrical
7. Make sure that the ac power LED and the dc power LED on the power supply
If you have other options to install or remove, do so now. Otherwise, go to
"Completing the installation" on page 45.
Installing a Y power cable
A Y power cable comes with the power-supply option. Cable the servers as shown
in the illustration to ensure server redundancy. Use one Y power cable to provide
power to two servers. Each Y power cable must be connected to a different power
source, such as a power distribution unit (PDU), to maintain redundancy.
Installing a hard disk drive
Locate the documentation that comes with the hard disk drive and follow those
instructions in addition to the instructions in this chapter.
Note: Do not mix SAS hard disk drives with SATA hard disk drives.
30
IBM System x3550 Type 7978: User's Guide
Power supply
forward into the power-supply bay until it clicks. Make sure that the power
supply connects firmly into the power-supply backplane.
on the power supply.
outlet.
are lit, indicating that the power supply is operating correctly. The two green
LEDs are to the right of the power-cord connector.
Y cable A
Y cable B
Power-supply handle
Cable-management arm
Cable-management arm
Power-supply
release tab
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