The drive bays in your system provide space for up to two SATA or SCSI hard drives, two 5.25-inch drives, and an optional diskette drive. See Figure 7-1.
Figure 7-1. Drive Locations Inside the System
General Installation Guidelines
SCSI Installation Guidelines
Although SCSI drives are installed in essentially the same way as other drives, their configuration requirements are different. To install and configure a SCSI drive, follow the guidelines in the following subsections.
NOTE: The SCSI controller card must be installed in PCI slot 2 or slot 3.
NOTE: SCSI devices installed by Dell are configured correctly during the manufacturing process. You do not need to set the SCSI ID for these drives.
SCSI Interface Cables
SCSI interface connectors are keyed for correct insertion. Keying ensures that the pin-1 wire in the cable connects to pin 1 in the connectors on both ends. When you disconnect an interface cable, take care to grasp the cable connector, rather than the cable itself, to avoid stress on the cable.
SCSI ID Numbers
Each drive attached to a SCSI controller must have a unique SCSI ID number from 0 to 15.
The SCSI hard drive from which the system boots is configured as SCSI ID 0.
If you install an additional SCSI drive or change your SCSI configuration, see the documentation for each SCSI drive for information on setting the appropriate SCSI ID number.
NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that drives be attached to the interface cable in order by ID number.
SCSI Device Termination
SCSI logic requires that termination be enabled for the two drives at opposite ends of the SCSI chain and disabled for all drives in between. For internal SCSI drives, termination is configured automatically. See the documentation provided with any optional SCSI drive you purchase for information on disabling termination.
Configuring the Boot Drive
The drive or device from which the system boots is determined by the boot order specified in the System Setup program. See "Using the System Setup Program" in your User's Guide. To boot the system from a hard drive or drive array, the drive(s) must be connected to the appropriate controller:
To boot from a SCSI hard drive, the drive must be connected to the optional SCSI controller card. See the documentation that accompanied the controller card.
After you open and close the cover, the chassis intrusion detector, if enabled, causes the following message to appear on the screen at the next computer start-up:
ALERT! Cover was previously removed.
Reset the chassis intrusion detector by changing Chassis Intrusion to Enabled or Enabled-Silent.
Front-Panel Inserts
If you are installing a new 5.25-inch drive, remove the front-panel inserts to allow external access to the drive. To gain access to the front-panel insert, you might need to remove a device.
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
Open the system. See "Opening the System" in "Troubleshooting Your System."
If applicable, remove a device. See the appropriate removal procedure.
Squeeze the insert tabs until the insert pops free of the front-panel cover. See Figure 7-2.
Figure 7-2. Removing Front-Panel Inserts
Hard Drives
Your system contains up to two SATA or SCSI non-hot-plug hard drives. The integrated SATA controller supports two SATA hard drives. If your system contains SCSI hard drives, they must be connected to an optional SCSI controller card.
The steps for removing and installing SATA and SCSI hard drives are the same.
Removing a Hard Drive
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
Open the system. See "Opening the System" in "Troubleshooting Your System."
Disconnect the power and interface cables from the hard drive. See Figure 7-3 and Figure 7-4.
Figure 7-3. Removing or Installing a SCSI Hard Drive
Figure 7-4. Removing or Installing a SATA Hard Drive
Press in on the tabs on each side of the drive and slide the drive up and out of the drive bay.
Close the system. See "Closing the System" in "Troubleshooting Your System."
Reconnect the system to the electrical outlet, and turn on the system and attached
peripherals.
Installing a Hard Drive
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
Open the system. See "Opening the System" in "Troubleshooting Your System."
Unpack the hard drive, and prepare it for installation.
Check the documentation for the drive to verify that it is configured for your system.
If the hard drive does not have the drive rails attached, attach the drive rails to the new drive
by aligning the screw holes on the drive with the screw holes on the drive rails and then
inserting and tightening all four screws (two screws on each rail). See Figure 7-5.
Figure 7-5. Installing Drive Rails
Slide the new drive into the drive bay until the tabs on the rails click securely into position.
If the drive you just installed is the primary drive, install your operating system on the hard
drive.
Installing a SCSI Controller Card
See "Installing an Expansion Card" in "Installing System Components" for instructions about installing the card and routing the cables.
Diskette Drive (Optional)
The system supports an optional standard diskette drive.
Removing the Diskette Drive
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
Open the system. See "Opening the System" in "Troubleshooting Your System."
Disconnect the power and interface cables from the diskette drive. See Figure 7-6.
Press in on the tabs on each side of the drive and slide the drive up and out of the drive bay.
Close the system. See "Closing the System" in "Troubleshooting Your System."
Reconnect the system to the electrical outlet, and turn on the system and attached
peripherals.
Installing an Optional Diskette Drive
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
Open the system. See "Opening the System" in "Troubleshooting Your System."
Unpack the replacement diskette drive, and prepare it for installation.
Check the documentation for the drive to verify that it is configured for your system.
If your new diskette drive does not have the drive rails attached, attach the drive rails to the
new drive by aligning the screw holes on the drive with the screw holes on the drive rails and
then inserting and tightening all four screws (two screws on each rail). See Figure 7-5.
Remove the front panel insert.
Slide the drive into the diskette-drive bay until the tabs on the rails click securely into
position.
Connect the power cable to the drive. See Figure 7-6.
Figure 7-6. Removing or Installing an Optional Diskette Drive
Connect the interface cable from the drive to the FLOPPY connector on the system board.
See Figure 7-6.
See Figure A-3 for the location of the FLOPPY connector on the system board.
Close the system. See "Closing the System" in "Troubleshooting Your System."
Reconnect the system to the electrical outlet, and turn on the system and attached
peripherals.
Enter the System Setup program and ensure that the drive's controller is enabled. See "Using
the System Setup Program" in the User's Guide.
You can install an additional 5.25-inch drive of your choice in the second 5.25-inch drive bay. See Figure 7-1. If you are installing a tape backup unit (TBU), it must be installed in the second bay.
Installing a 5.25-Inch Drive
CAUTION: See your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Unpack the drive and prepare the drive for installation.
For instructions, see the documentation that accompanied the drive. Also, see "SCSI Installation Guidelines" for information on configuring the drive.
If the drive does not have the drive rails attached, attach the drive rails to the new drive by
aligning the screw holes on the drive with the screw holes on the drive rails and then inserting
and tightening all four screws (two screws on each rail). See Figure 7-5.
Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet.
Open the system. See "Opening the System" in "Troubleshooting Your System."
Remove the front-panel insert for the empty drive bay. See "Front-Panel Inserts."
Slide the drive into the drive bay until the tabs on the rails click securely into position.
Connect the power cable to the drive. See Figure 7-7.
Figure 7-7. Installing a 5.25-Inch Drive
Connect the interface cable from the drive to the PRI IDE connector on the system board to
the drive. See Figure 7-7 and Figure A-3.
Close the system. See "Closing the System" in "Troubleshooting Your System."
Reconnect the system to the electrical outlet, and turn on the system and attached
peripherals.
Enter the System Setup program and ensure that the drive's IDE controller is enabled. See
"Using the System Setup Program" in the User's Guide.
