Lenovo IdeaCentre K210 Hardware Replacement Manual page 17

To replace the power supply:
1. Remove the computer cover. Refer to "Removing the computer cover".
Note: For this procedure, it helps to lay the computer on its side.
2. Disconnect the power supply cables from the system board and from all
drives. Refer to "Identifying parts on the system board".
3. Remove the four screws that secure the power supply at the rear of the
chassis.
4. Lift the power supply out of the chassis.
5. Install the new power supply into the chassis so that the screw holes in the
power supply align with those in the chassis.
6. Install the four screws to secure the power supply. Note: Use only the screws
provided by Lenovo.
7. Reconnect the power supply connectors to the system board.
8. Reconnect a power supply connector to each of the drives.
9. Refer to the "Completing the installation".
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Hardware Replacement Guide
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