Unsupported Browser Detected

The Lenovo Support website supports Microsoft Internet Explorer 10+, Mozilla Firefox 29+, Chrome 34+ and any other modern web browser.

      Power supply removal and installation - ThinkCentre A51, A52, M52, M52e

      View power supply removal movie
      View power supply installation movie


      Attention: Do not open your computer or attempt any repair before reading the "Important safety information". You can also find this information in the Quick Reference guide that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer.

      Removing the power supply

      Note: You will need a flat-blade screwdriver.

      1. Remove the computer cover. See "Removing the computer cover" for additional information..
        Note: For this procedure, you will need to lay the computer on its side.
      2. To access the 12V power connector, remove the lower drive cage thumb-screw and slide the lower drive cage toward the rear and out of the bay. Place the drive cage out of your way without disconnecting the drive signal cables.

      Removing screws and drive cage

      1. Disconnect the power supply cables 1 and 2 from the system board.

      Disconnecting power supply cable

      1. Disconnect the power cable from each of the drives. Note the location of each cable that is disconnected.
      2. Remove the power supply cables from the cable clips and ties.
      3. Remove the four screws that secure the power supply at the rear of the chassis.

      Remove screws from power supply

      1. Press inward on the metal retainer inside the chassis and slide the power supply toward the front of the chassis and lift it out of the chassis as shown.

      Removing the power supply

      Installing the power supply
      1. Install the new power supply into the chassis so that the screw holes in the power supply align with those in the chassis.
        Note: Use the screws that were provide with the original power supply.
      2. Install and tighten the four screws that secure the power supply.
      3. Reconnect power supply connectors 1 and 2 to the system board.

      Reconnect power supply

      1. Reinstall the lower drive cage and secure it with the thumb screw.
      2. Reconnect a power supply connector to each of the drives.
      3. Go to "Completing the installation".
      Purchase parts online


      Was this information helpful?

      Your feedback helps to improve this site.

      • Alias ID: MIGR-62451
      • Document ID: PD010542
      • Last Updated :17 Jun 2014
      • © 2016 Lenovo