Dell OptiPlex 745 - Manual (Page 105)

2. Disconnect the power and data cables from the back of the drive.
3. Grasp the sliding plate lever and slide it towards the top of the computer until the drive panel snaps open; while holding the lever in place, slide the
drive out of the computer.
Installing an Optical Drive
1. Follow the procedures in Before You Begin .
2. If you are replacing an optical drive, remove the shoulder screws from the existing drive and attach the screws to the replacement drive.
3. If you are installing a new optical drive, remove the drive-panel insert for your new drive, remove the shoulder screws from the inside of the drive-panel
insert, and attach the screws to the new drive.
4. Check the documentation that accompanied the drive to verify that the drive is configured for your computer.
5. Align the shoulder screws on the optical drive with the shoulder screw slots, and slide the drive into the bay until it clicks into place.
1 optical drive
2 drive release latch