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      Cover removal - ThinkCentre A51, A52, M52, M52e

      View cover removal movie
      View cover installation movie

      Attention: Read "Safety information" and "Handling electrostatic discharge-sensitive devices" in the Hardware Maintenance Manual. Turn off the computer and wait 3 to 5 minutes to let the computer cool before removing the computer cover.

      1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your operating system, and turn off all attached devices.
      2. Unplug all power cords from electrical outlets.
      3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. See "Locating connectors on the computer".
      4. Remove any locking devices such as a padlock or Kensington lock that secure the computer cover.
      5. Press the cover-release button on the right side cover, slide the cover to the rear, and remove.
      cover removal
      1. Some models have an optional hard drive mounting bracket 1 installed. When this bracket is installed, access to some of the CRUs or FRUs inside the chassis is restricted.

        Note: There appears to be two drive bays in the bracket. However, due to thermal restrictions, only the bay 2 at the rear of the chassis can be used to install a hard drive. See "Pivoting or removing the optional hard drive mounting bracket".

        removing optional hard drive

      To replace the computer cover, see "Completing the installation".

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      • Alias ID: MIGR-62445
      • Document ID: PD008739
      • Last Updated :17 Jun 2014
      • © 2016 Lenovo