Lenovo ThinkStation C20 User Manual page 34

To replace the optical drive, do the following:
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 13.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 14.
4. Disconnect the signal cable and the power cable from the rear of the optical drive, press the blue release
button 1 as shown, and then slide the optical drive out of the computer.
Figure 24. Removing the optical drive
5. Install the optical drive retainer
into the optical drive bracket from the front of the computer until the optical drive snaps into position.
Figure 25. Installing the new optical drive
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ThinkStation User Guide
1 on the side of the new optical drive. Then, slide the new optical drive