The drive bays in your system provide space for up to two SATA or SCSI hard drives, two 5.25-inch drives, and one optional diskette drive. See Figure 6-1.
Figure 6-1. 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 3 or slot 5. See Figure A-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, ensure that you 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 Device
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.
The system can also boot from an external USB diskette or optical drive. See "Using the System Setup Program" in your User's Guide.
Installing SATA or SCSI 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: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the system 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 6-2 and Figure 6-3.
Figure 6-2. Removing or Installing a SCSI Hard Drive
Figure 6-3. Removing or Installing a SATA Hard Drive
Press in the tabs on each side of the removable drive guide bracket and slide the guide bracket
up and out of the drive bay.
NOTE: If you do not intend to replace the drive, it is highly recommended that you remove the drive from the guide bracket (see Figure 6-4) and insert the empty guide bracket back into the drive bay. This eliminates the likelihood that the empty bracket will be misplaced or improperly stored while not in use.
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: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, 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.
Remove the plastic guide bracket from the drive bay by pressing the two tabs inward and
lifting it out. See Figure 6-2 or Figure 6-3.
Snap the new drive into the guide bracket and insert the guide bracket assembly into the drive
bay until it snaps into place. See Figure 6-4.
Figure 6-4. Removing and Installing a Hard Drive in the Guide Bracket Assembly
Connect SATA hard drives to the SATA0 (first drive) and SATA2 (second drive) connectors on the system board. See Figure A-3 for the location of the drive interface connectors on the system board.
Connect SCSI hard drives to the SCSI controller card at channel A. See the documentation for the controller card and "Installing an Expansion Card" in "Installing System Options."
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 your User's Guide.
Partition and logically format your drive before proceeding to the next step.
See the documentation for your operating system for instructions.
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 Options" for instructions about installing the card and routing the cables. Also see Figure 6-2 for additional cable routing details.
NOTE: Most SCSI controller cards are capable of sending a drive activity indicator signal that powers a drive activity LED. This signal is sent via a cable from the controller card connected to the AUX_LED connector on the system board. See Figure A-3 for connector locations.
Installing a Diskette Drive
The system supports an optional standard diskette drive.
Removing the Diskette Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, 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."
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 Diskette Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, 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.
Attach the four shoulder screws to the drive as shown in Figure 6-5.
NOTE: Spare shoulder screws are attached to the inside of the front drive bezel.
Verify that the drive-stop tab is in the proper position. It should be in its lowermost position
so that the diskette icon on the drive cage is visible. See Figure 6-6.
NOTE: Inserting a diskette drive into the drive bay with the drive-stop tab in the improper position will cause the drive to be positioned too deep in the bay.
From the front of the chassis, slide the drive into the drive bay until the shoulder screws snap
securely into the sliding plate.
Connect the power cable to the drive. See Figure 6-6.
Figure 6-6. Removing or Installing an Optional Diskette Drive
Connect the interface cable from the drive to the FLOPPY connector on the system board.
See Figure 6-6 and Figure A-3.
Close the system. See "Closing the System" in "Troubleshooting Your System."
You can install an additional 5.25-inch drive of your choice in the second 5.25-inch drive bay. See Figure 6-1. If you are installing a tape backup unit (TBU), it must be installed in the second bay.
Installing a 5.25-Inch Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, 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.
Attach the three shoulder screws to the drive. See Figure 6-7.
NOTE: Spare shoulder screws are attached to the inside of the front drive bezel.
