Dell OptiPlex 755 User Manual page 164

1 cable release tab 2
5. Replace the optical drive (see
6. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.
7. Replace the computer cover (see
8. Enter system setup and use the Diskette Drive option to enable your new floppy drive (see
See the documentation that came with the drive for instructions on installing any software required for drive operation.
9. Verify that your computer works correctly by running the Dell Diagnostics (see
Media Card Reader
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
Removing a Media Card Reader
1. Follow the procedures in Before You
2. Lay the computer on its side so that the system board is on the bottom of the inside of the computer.
3. Remove the computer cover (see
4. Remove the optical drive and carefully set it aside (see
NOTICE: Do not pull the drive out of the computer by the drive cables. Doing so may cause damage to cables and the cable connectors.
5. Remove the cable from the media card reader connector.
6. Remove the hard drive (see
7. Disconnect the cable.
floppy drive data cable edge connector
Optical Drive).
Replacing the Computer Cover).
Begin.
Removing the Computer Cover).
Optical
Removing a Hard Drive).
System
Dell Diagnostics).
Drive).
Setup).