Dell Precision 390 - Manual (Page 83)

Removing a CD/DVD Drive (Tower Computer)
1. Follow the procedures in Before You Begin .
2. Remove the computer cover (see Removing the Computer Cover ).
3. Remove the front panel. See Removing the Front Panel .
4. Disconnect the power cable from the back of the drive and the CD/DVD-drive cable from the back of the drive and the system board.
5. Slide the sliding-plate lever to the right to release the shoulder screw and slide the drive out to remove it from the drive bay.
Installing a CD/DVD Drive (Tower Computer)
1. Follow the procedures in Before You Begin .
2. Remove the computer cover (see Removing the Computer Cover ).
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your
computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
1 CD/DVD-drive cable 2 power cable 3 system board CD/DVD connector
1 sliding-plate lever 2 CD/DVD drive
NOTICE: In a tower configuration with 4 hard drives, there can only be one optical drive which must be installed in the upper 5.25-inch drive bay. In this
case, the 3rd hard drive will occupy the upper 3.5-inch drive bay. The fourth hard drive will occupy the lower 5.25-inch drive bay..