7. Use M3 screws to secure the rear brackets to the front brackets. Torque the screws to approximately
0.5 Nm (4 inch-pounds).
8. Connect all external cables.
Removing the redundant power supply
To remove the redundant power supply from a System x rack, complete the following steps:
1. Disconnect all external cables.
2. Loosen and remove M3 screws that secure the rear brackets to the front brackets.
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Lenovo RackSwitch G7000 Redundant Power Supply Installation Guide