Dell OptiPlex 755 - Manual (Page 63)

5. Disconnect the cable from the back of the media card reader and from the system board.
6. If you are not replacing the media card reader at this time, install the 3.5 inch drive insert (see Replacing Drive Inserts ). Contact Dell if you need a drive
bay insert.
Installing a Media Card Reader
1. If you are installing a new drive or media card reader:
a. Remove the drive inserts (see Removing Drive Inserts ).
b. Remove the four shoulder screws from the drive panel insert.
c. Pull to remove the 3.5 inch drive insert that should be installed in the drive bay.
1 drive release latch
2 media card reader