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Power supply removal and installation - ThinkCentre A50, S50

Attention: Read "Safety information to be familiar with before servicing your computer" before opening the cover.

These instructions are also available in movie format:

  1. Turn off the computer and disconnect the power cord from the electrical outlet and from the computer.
  2. Disconnect all other cables attached to the computer.
  3. Remove the four screws at the rear of the chassis.

Remove the four power supply assembly screws

  1. Open the cover, see "Cover removal ", and rotate the drive bay assembly upward to gain access to the power supply cable connections.

open cover and rotate drive basy assembly

  1. Disconnect power supply cable connector P3 from the CD-ROM drive and P4 or P5 from the hard disk drive (HDD). Connector P4 is used for a parallel HDD and connector P5 is used for a serial HDD.
  2. Disconnect power supply cable connectors P1 and P2 from the system board.

Disconnect the power cables P1 and P2 from the system board

  1. Remove the power supply assembly from the computer.

Remove the power supply assembly from the computer

  1. Install the new power supply assembly into the chassis so that the screw holes in the power supply assembly align with those in the chassis.
    Note: Use only the screws provided by IBM.
  2. Install and tighten the four power supply assembly screws into the rear of the chassis.
  3. Reconnect power supply connectors P1 and P2 to the system board.
  4. Reconnect power supply cable connector P3 to the CD-ROM drive and connector P4 or P5 to the hard disk drive.
  5. Use the following illustration to route the cables correctly. It is important to correctly route all power supply cables to avoid interference when lowering the drive bay assembly.

cable routing

  1. Ensure that all components have been reassembled correctly and that no tools or loose screws are left inside the computer.
  2. Lower the drive bay assembly.
  3. Go to "Closing the cover and connecting the cables".
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Document ID : PD012584
Legacy Document ID : MIGR-51033
Last Updated :
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