Manuals

To install a diskette, LS-120 SuperDisk, tape, or CD-ROM drive in the desktop chassis, perform the following steps.

CAUTION: Before you remove the computer cover, see "Safety First—For You and Your Computer."

NOTES: LS-120 SuperDisk drives are EIDE devices. Dell Precision WorkStation 420 systems equipped with LS-120 SuperDisk drives have the drive configured as the master device on the secondary EIDE channel. If you install an LS-120 SuperDisk drive in your system, Dell recommends that you configure the drive for this setting. For instructions on configuring the drive as the master device, see the documentation that accompanied the drive.

1. Unpack the drive and prepare it for installation.

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.

Check the documentation that accompanied the drive to verify that the drive is configured for your computer system. Change any settings necessary for your configuration.

2. If you are installing an EIDE drive, configure the drive for the Cable Select setting as described in the documentation that accompanied your drive.
   
   
3. Remove the computer cover as instructed in "Removing the Computer Cover (Desktop Chassis). "
   
   
4. Remove the drive bracket from the bay you want to use.

   Squeeze the metal tabs that extend from each side of the drive bracket toward each other, and pull the bracket out of the bay (see Figure 5).

   NOTE: For easier access inside the chassis, you may want to rotate the power supply out of the way temporarily. To do so, see " Rotating the Power Supply Away From the System Board (Desktop Chassis)."

Figure 5. Removing a Drive From the Desktop Chassis

If a drive is already installed in the bay and you are replacing it, disconnect the DC power cable and interface cable from the back of the drive before sliding the bracket out of the bay. To remove the old drive from the bracket, turn the drive/bracket assembly upside down and unscrew the four screws that secure the drive to the bracket (see Figure 6).

5. Attach the drive bracket to the new drive.

   Turn the drive upside down, and locate the four screw holes around its perimeter. Fit the bracket over the drive, and then tilt the front of the drive up so that the bracket drops down into place. To ensure proper installation, all screw holes should be aligned and the tabs on the front of the bracket should be flush with the front of the drive (see Figure 6).

Figure 6. Attaching the Drive Bracket to the New Drive

To further ensure proper positioning of the drive in the chassis, insert and tighten all four screws in the order in which the holes are numbered (the holes are marked "1" through "4").

6. Slide the new drive into the drive bay until the drive snaps securely into place (see Figure 7).

   Make sure that both bracket tabs snap into place in the drive bay.

Figure 7. Inserting the New Drive Into the Drive Bay of the Desktop Chassis

7. Connect a DC power cable to the power input connector on the back of the drive (see Figure 8).
   
   
8. Connect the appropriate interface cable to the interface connector on the back of the drive (see Figure 8).

   If your system came with an EIDE CD-ROM or tape drive, use the spare connector on the existing interface cable. Otherwise, use the EIDE interface cable provided in the drive kit.

   NOTICE: You must match the colored strip on the cable with pin 1 on the drive's interface connector to avoid possible damage to your system.

    

Figure 8. Attaching Diskette Drive or Tape Drive Cables in the Desktop Chassis

1 Interface connector 2 EIDE cable 3 DC power cable 4 Power input connector

9. For an EIDE device, connect the other end of the interface cable to the interface connector labeled "IDE2" on the system board.

   For a diskette drive, connect the cable from the drive to the interface connector labeled "FLOPPY" on the system board.

   Check all cable connections. Fold cables out of the way to provide airflow for the fan and cooling vents.

10. If the 5.25-inch drive bay was previously empty, remove the front-panel insert from the computer cover.

    Hold the cover with the inside facing toward you and press each end of the insert with your thumbs until it snaps free.

11. Replace the computer cover, reconnect your computer and peripherals to their power sources, and turn them on.
    
    
12. Update your system configuration information in System Setup.

    For a diskette drive, update Diskette Drive A or Diskette Drive B to reflect the size and capacity of your new diskette drive.

    For EIDE devices, set the appropriate Secondary Drive 0 or Secondary Drive 1 to Auto.

13. Verify that your system works correctly by running the Dell Diagnostics.

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.