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7. Align the new power supply assembly in the chassis and slide the new power supply assembly into
the rail until the new power supply assembly clicks into position.
8. Align the screw holes in the new power supply assembly with the corresponding holes in the rear of the
chassis. Then, install the three screws to secure the new power supply assembly in place.
Note: Use only screws provided by Lenovo.
Figure 91. Installing the power supply assembly
9. Connect the new power supply assembly cables to all drives and the system board. See “Locating
parts on the system board” on page 80.
10. Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until it snaps
into position.
Chapter 10. Replacing FRUs (machine type: 10AQ) 149