Back to Contents Page
Dell OptiPlex GX400
Service Manual
Drive Location
Removing the Floppy Drive
Replacing the Floppy Drive
Removing a CD, Zip, or Other External
Drive
Replacing a CD, Zip, or Other External
Drive
Removing a Hard Drive
Replacing a Hard Drive
Drive Locations
 |
NOTICE: Before disconnecting a device from the computer or removing a
component from the system board, verify that the standby power light on the
system board has turned off. To locate this light, see "System Board
Components."
|
- Turn off the computer and devices, disconnect them from their
electrical outlets, wait at least 5 seconds, and then remove the
computer cover.
- Rotate the power supply away from the system board.
- Remove the front panel.
- Disconnect the DC power and interface cables from the back of the
drive.
- Press the green floppy-drive bracket release button and slide the drive
assembly out of the chassis.
Removing the Floppy-Drive Bracket
- Remove the mounting screw.
- Rotate the left side of the floppy drive upward and lift it free from the
drive bracket.
Removing the Floppy Drive from the Bracket
- Mount the floppy drive on the bracket:
- Lower the right side of the floppy drive onto the bracket, inserting
the drive retention pins into the screw holes on the drive. See
"Removing the Floppy Drive from the Bracket."
- Lower the left side of the floppy drive downward and secure it to
the bracket with the screw you removed in step 6 of "Removing the
Floppy Drive."
- Slide the drive assembly into the chassis until the green floppy-drive
bracket release button snaps securely into place. See "Removing the
Floppy-Drive Bracket."
- Connect the interface cable for the drive. To locate this connector, see
"System Board Components."
 |
NOTICE: To avoid possible damage, you must match the colored strip on the
interface cable with pin 1 on both the drive and system board connectors.
|
- Connect a DC power cable to the power input connector on the back
of the drive.
- Ensure that all cables are firmly connected. Fold cables out of the way
to provide airflow for the fan and cooling vents.
- Rotate the power supply back into position until the securing tab
snaps into the release latch.
- Replace the computer cover and restart the computer.
- Run the Dell Diagnostics to verify that the drive is operating properly.
 |
NOTICE: Before disconnecting a device from the computer or removing a
component from the system board, verify that the standby power light on the
system board has turned off. To locate this light, see "System Board
Components."
|
- Turn off the computer and devices, disconnect them from their
electrical outlets, wait at least 5 seconds, and then remove the
computer cover.
- Rotate the power supply away from the system board.
- Remove the front panel.
- Disconnect the DC power and interface cables from the back of the
drive.
- Remove the drive bracket from the chassis drive bay you want to use.
Squeeze together the metal bracket tabs that extend from each side of the drive bracket, and pull the bracket out of the bay.
Removing a Drive Bracket
- Remove the drive from the bracket.
Turn the drive/bracket assembly upside down and remove the four screws that secure the drive to the bracket.
Removing the Drive from the Bracket
- Attach the new drive to the drive bracket.
Turn the drive upside down, and fit the bracket on the drive so that the screw holes align. 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 "Removing the Drive from the Bracket").
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").
- Slide the new drive/bracket assembly into the drive bay until both
drive bracket tabs snap securely into place.
Installing the Drive Bracket
- Connect the interface cable for the drive. See "Attaching Drive
Cables."
 |
NOTICE: To avoid possible damage, you must match the colored strip on the
interface cable with pin 1 on both the drive and system board connectors.
|
- If you are installing an EIDE device, ensure that the interface
cable is properly connected to the EIDE connector on the system
board.
- If you are installing a SCSI device, ensure that the SCSI interface
cable is properly connected to the interface connector on the SCSI
controller board.
- Connect a DC power cable to the power input connector on the back
of the drive.
Attaching Drive Cables
- Ensure that all cables are firmly connected. Fold cables out of the way
to provide airflow for the fan and cooling vents.
- If the chassis drive bay was previously empty, remove the
corresponding insert from the front panel.
Hold the front panel with the outside facing you. Press the ends of the insert with your thumbs until the insert snaps free of the front panel.
- Replace the front panel.
- Rotate the power supply back into position until the securing tab
snaps into the release latch.
- Replace the computer cover and restart the computer.
- If the drive you installed is a hard drive, enter system setup, and
update the drive settings.
After you update the system settings, exit system setup and reboot the computer.
- If the device you installed is a hard drive, partition and logically format
the drive before proceeding to the next step.
See the operating system's documentation for instructions.
- Test the drive to verify that it is operating properly.
- If the drive you installed is a hard drive, run the Dell Diagnostics
to test the drive.
- For other types of drives, see the drive's documentation for
information on testing the drive.
- If the drive you installed is the primary hard drive, install the operating
system on the drive.
See the operating system's documentation for instructions.
 |
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.
|
 |
NOTICE: Before disconnecting a device from the computer or removing a
component from the system board, verify that the standby power light on the
system board has turned off. To locate this light, see "System Board
Components."
|
- Turn off the computer and devices, disconnect them from their
electrical outlets, wait at least 5 seconds, and then remove the
computer cover.
- Rotate the power supply away from the system board.
- Remove the front panel.
- Disconnect the DC power and interface cables from the back of the
drive.
- Rotate the hard drive bracket out of the chassis using the metal tab.
Grasp the hard drive bracket and pull it out of the chassis.
Removing the Hard-Drive Bracket
- Remove the screw(s) that secures the drive in the bracket.
- Remove the drive from the bracket
Removing a Hard Drive from the Bracket
- Slide the drive into one of bracket bays, oriented so that the
connectors on the back of the drive will face the interior of the chassis
when the bracket is reinstalled. See "Removing a Hard Drive from the
Bracket."
 |
NOTE: Orient the drive in the bracket so that its bottom will face the left
side of the chassis when the bracket is installed in the chassis.
|
- Align the screw hole(s) of the drive and bracket, and secure the drive in
the bracket using the screws that came with the upgrade kit.
- Reinstall the hard-drive bracket in the chassis.
Insert the drive bracket into the chassis, and rotate the bracket until the tabs snap into place.
Installing the Hard-Drive Bracket
- Connect the interface cable for the drive. See "Attaching Hard-Drive
Cables."
 |
NOTICE: To avoid possible damage, you must match the colored strip on the
interface cable with pin 1 on both the drive and system board connectors.
|
- If you are installing an EIDE device, ensure that the IDE interface
cable is properly connected to the EIDE connector on the system
board.
- If you are installing a SCSI device, ensure that the SCSI interface
cable is properly connected to the interface connector on the SCSI
controller board.
- Connect a DC power cable to the power input connector on the back
of the drive.
Attaching Hard-Drive Cables
- Ensure that all cables are firmly connected. Fold cables out of the way
to provide airflow for the fan and cooling vents.
- Ensure that the control panel cable is firmly connected to the system
board.
The control panel contains the hard-drive activity light. To locate the control panel system board connector, see "System Board Components."
- Replace the front panel.
- Rotate the power supply back into position until the securing tab
snaps into the release latch.
- Replace the computer cover and restart the computer.
- Enter system setup, and update the drive settings.
After you update the system settings, exit system setup and reboot the computer.
- Partition and logically format the drive before proceeding to the next
step.
See the operating system's documentation for instructions.
- Run the Dell Diagnostics to test the drive.
- If the hard drive you installed is the primary drive, install the operating
system on the drive.
See the operating system's documentation for instructions.
Back to Contents Page