Lenovo 7844B4U User Manual page 43

1. Remove all media from the drives and turn off all attached devices and the
computer. Then, disconnect all power cords from electrical outlets and
disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 14.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on
page 15.
4. Pivot the drive bay assembly upward. See "Accessing the system board
components and drives" on page 17.
5. Disconnect the signal cable and the power cable from the rear of the optical
drive.
6. Hold the drive bay assembly and remove the two screws that secure the
optical drive.
Figure 27. Removing the two screws that secure the optical drive
7. Lower the drive bay assembly. See "Accessing the system board components
and drives" on page 17.
Chapter 2. Installing or replacing hardware
35