Replacing The Power Supply - Lenovo 7387 Hardware Maintenance Manual

Replacing the power supply

1. Remove the left-side cover. See "Removing the covers" on page 84.
2. Disconnect all power supply cables from the drives.
3. Disconnect all power supply cables from the system board. See "Identifying
4. At the rear of the chassis, remove the four screws that secure the power supply.
5. Lift the power supply out of the chassis.
6. Install the new power supply and insert the four screws that hold the power
7. Reconnect all power supply cables to the system board and the drives. See
8. Go to "Completing the FRU replacement" on page 112.
Attention
Never remove the cover on a power supply or any part that has the
following label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no servicable parts inside
these components.
parts on the system board" on page 87.
supply in place.
"Identifying parts on the system board" on page 87. Make sure the cables are
correctly routed.
Chapter 8. Replacing FRUs (Types 7387, 7388, 7389, 7393, 7394, and 7395)
93