Lenovo ThinkCentre A58e Hardware Maintenance Manual - Page 76

Replacing the power supply assembly

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Replacing the power supply assembly 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 serviceable parts inside these components. Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that was included with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to replace the power supply assembly. To replace the power supply assembly, do the following: 1. Remove the computer cover. See "Removing the computer cover" on page 67. 2. Disconnect the power supply assembly cables from the system board and all drives. See "System board connectors" on page 66. 3. Lay the computer on its side and remove the four screws at the rear of the chassis that secure the power supply assembly. Figure 4. Removing the screws that secure the power supply assembly 70 ThinkCentre Hardware Maintenance Manual

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Replacing the power supply assembly
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 serviceable parts inside these components.
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the
ThinkCentre Safety and Warranty Guide
that was included with your computer. To obtain a copy of the
ThinkCentre Safety and Warranty Guide
, go to:
This section provides instructions on how to replace the power supply assembly.
To replace the power supply assembly, do the following:
1.
Remove the computer cover. See “Removing the computer cover” on page 67.
2.
Disconnect the power supply assembly cables from the system board and all drives. See “System
board connectors” on page 66.
3.
Lay the computer on its side and remove the four screws at the rear of the chassis that secure the
power supply assembly.
Figure 4. Removing the screws that secure the power supply assembly
70
ThinkCentre Hardware Maintenance Manual