Lenovo ThinkCentre M80 Hardware Maintenance Manual for ThinkCentre M80 - Page 90
attached. There are no serviceable parts inside these components. If you suspect a problem
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Page 90 highlights
DANGER Hazardous moving parts. Keep fingers and other body parts away. CAUTION: 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. If you suspect a problem with one of these parts, contact a service technician. To replace the power supply assembly, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Remove the computer cover. See "Removing the computer cover" on page 72. 3. Disconnect the power supply assembly cables from all drives and from the 24-pin power connector and 4-pin power connector on the system board. See "Locating parts on the system board" on page 70. Note: You might also need to release the power supply assembly cables from some cable clips or ties that secure the cables to the chassis. 82 ThinkCentre Hardware Maintenance Manual