Lenovo ThinkCentre A61 Hardware Maintenance Manual - Page 96

2. Remove the front bezel by releasing the three plastic tabs inside the chassis and pivoting the front bezel outward. Carefully set the front bezel to the side without disconnecting the power switch/LED assembly cable. 3. To reinstall the front bezel, align the plastic tabs on the right side of the front bezel with the corresponding holes in the chassis, and then pivot the front bezel inward until it snaps into position on the left side. Replacing the power supply Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to replace the power supply. To replace the power supply: 1. Remove the computer cover. See "Removing the computer cover" on page 87. 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. 90 Hardware Maintenance Manual