Lenovo ThinkCentre A70 7099 Hardware Maintenance Manual page 149

4. Pivot the drive bay assembly upward. See "Accessing the system board
components and drives" on page 125.
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 60. 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 125.
Chapter 9. Replacing FRUs - Desktop computers
143