Dell Precision WorkStation 420 Service Manual page 33

NOTE: Tape drives sold by Dell come with their own operating software and documentation. After you install a tape drive,
refer to the documentation that came with the drive for instructions on installing and using the tape drive software.
Hard-Disk Drive Removal
CAUTION: Before you remove the computer cover, see
1. Remove the computer cover.
2. Remove the front panel as instructed in
3. Disconnect the DC power cable and EIDE or small computer system interface (SCSI) cable from the drive.
4. Pull the drive door forward and down until the hard-disk drive bracket is ejected halfway out of the chassis (see
5. Grasp the bracket and pull it completely out of the chassis.
Figure 15. Hard-Disk Drive Bracket Removal
Hard-Disk Drive Installation
To install a hard-disk drive, perform the following steps.
CAUTION: Before you remove the computer cover, see
NOTE: If you are installing a replacement hard-disk drive for one containing data you want to keep, make a backup of your important files
before starting this procedure.
Remove the computer cover
1.
2. Remove the front panel if it is not already off.
3. Remove the drive bracket from the chassis as instructed in
4. Slide the replacement drive into the slot previously occupied by the drive you removed, oriented so that the connectors on the back of the
drive will face the back of the chassis, with the power connector located above the data/interface connector (see
5. Align the four screw holes of the drive and bracket. Insert and tighten the screws (see Figure 16).
Figure 16. Inserting a Hard-Disk Drive in the Bracket
"Front Panel."
if it is not already off.
"Hard-Disk Drive
"Precautionary Measures."
1 Hard-disk drive bracket
2 Hinge tabs
3 Drive door handle
4 Drive door
"Precautionary Measures."
Removal" if it is not already off.
Figure 15).
Figure 16).