When you connect two IDE devices to a single IDE interface cable and configure them for the cable select setting, the device attached to the last connector on the interface cable is the primary (master) or boot device (drive 0), and the device attached to the middle connector on the interface cable is the secondary (slave) device (drive 1). See the drive documentation in your upgrade kit for information on configuring devices for the cable select setting.
Since cable select is the default setting, any additional drives that are installed do not need to be set as a primary or secondary drive.
Your computer supports up to two IDE devices. Hard drives should be connected to the connector labeled "IDE1," and CD/DVD drives should be connected to the connector labeled "IDE2."
Connect serial ATA drives to the connectors labeled "SATA_0" or "SATA_1."
When you install a drive, you connect two cables—a DC power cable and an interface cable—to the back of the drive.
NOTICE: If your system was purchased with a Serial ATA hard drive, the system includes the
newer style Serial ATA style power connector. If you are adding a Serial ATA hard drive to a
system that was not originally equipped with one and the drive you are adding requires the new
style Serial ATA power connector, you may need to obtain a power adapter cable from Dell. If
you need a Serial ATA power adapter cable, see Contacting Dell.
Most interface connectors are keyed for correct insertion; that is, a notch or a missing pin on one connector matches a tab or a filled-in hole on the other connector. Keyed connectors ensure that the pin-1 wire in the cable (indicated by the colored stripe along one edge of the cable) goes to the pin-1 end of the connector. The pin-1 end of a connector on a board or a card is usually indicated by a silk-screened "1" printed directly on the board or card.
NOTICE: When you connect an interface cable, do not place the colored stripe away from pin 1
of the connector. Reversing the cable prevents the drive from operating and could damage the
controller, the drive, or both.
This section describes how to configure and install SCSI devices in your computer. To install a SCSI device, you can use one or both of the following SCSI controllers:
The SCSI connector on the system board. To locate the SCSI system board connector, see the system board illustration (for the Dell Precision 450 computer, see "System Board Components" or for the Dell Precision 650 computer, see "System Board Components") or the interior service label.
NOTE: The system board SCSI controller supports hard drives only. Do not connect CD or DVD
drives, tape drives, DAT drives, and so on.
A SCSI controller card installed in your computer.
Internal SCSI devices must have a unique SCSI ID number from 0 to 15. If you are using the SCSI connector on the system board and a SCSI controller card installed in your computer, you have two separate SCSI buses operating. Each SCSI bus has a set of SCSI ID numbers from 0 to 15.
When SCSI devices are shipped from the factory, the default SCSI ID numbers are assigned as follows:
NOTE: There is no requirement that SCSI ID numbers be assigned sequentially
or that devices be attached to the cable in order by ID number. If two or more
devices use the same ID, your computer may hang during POST and in SCSI
BIOS.
SCSI devices installed by Dell are configured correctly during the manufacturing process. You do not need to set the SCSI ID for these SCSI devices.
If you attach additional optional SCSI devices, see the documentation for each device for information about setting the appropriate SCSI ID number.
NOTICE: Dell recommends that you use only SCSI cables purchased from Dell. Cables
purchased elsewhere are not guaranteed to work with Dell computers.
SCSI logic requires that termination be enabled for the two devices at opposite ends of the SCSI chain and disabled for all devices in between.
It is recommended that you use terminated cables and that you disable termination on all devices. See the documentation provided with any optional SCSI device you purchase for information on disabling termination on the device.
Follow these general guidelines when installing SCSI devices in your computer:
Although you install SCSI devices essentially the same way as other devices, their configuration requirements are different. For details on configuring your particular SCSI subsystem, see the documentation for your SCSI devices and/or your host adapter card.
Configure the device for a SCSI ID number and disable termination, if necessary.
To use an external SCSI device, you must have a SCSI controller card installed in your computer. Connect one end of the external SCSI cable to the connector on the back of the SCSI device. Attach the other end of the external SCSI cable to the connector on the controller card installed in the computer.
After you install a SCSI hard drive, Primary Drive 0 and Primary Drive 1 should be set to None in system setup if no EIDE hard drives are installed. If you have any EIDE devices on the second EIDE channel, such as a CD or tape drive, Secondary Drive 0 and/or Secondary Drive 1 should be set to Auto.
You may need to use programs other than those provided with the operating system to partition and format SCSI hard drives. See the documentation that came with your SCSI software drivers for information on installing the appropriate drivers and preparing your SCSI hard drive for use.
Ultra 320, Ultra 160/m, and Ultra2/Wide LVD drives (typically hard drives) both use a 68-pin cable. One end of the cable attaches to the SCSI connector on the system board or the SCSI controller card installed in your computer. The remaining connectors on the cable attach to the various drives.
Narrow SCSI drives (tape drives, CD drives, and some hard drives) use a 50-pin cable. One end of this cable attaches to the SCSI controller card. The remaining connectors on the cable attach to the various Narrow SCSI devices.
NOTICE: Dell recommends that you use only SCSI cables purchased from Dell. Cables
purchased elsewhere are not guaranteed to work with Dell computers.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide.
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on
a surface, such as a foam pad, that will sufficiently cushion it.
If you are replacing a hard drive that contains data you want to keep, back up your files
before you begin this procedure.
Shut down the computer through the Start menu.
Ensure that your computer and attached devices are turned off. If your computer and
attached devices did not automatically turn off when you shut down your computer,
turn them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then
unplug it from the network wall jack.
Disconnect any telephone or telecommunication lines from the computer.
Disconnect your computer and all attached devices from electrical outlets, and then
press the power button to ground the system board.
If you have installed a padlock through the padlock ring on the back panel, remove the
padlock.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an
unpainted metal surface, such as the metal at the back of the computer. While you work,
periodically touch an unpainted metal surface to dissipate any static electricity that could harm
internal components.
Ground yourself by touching an unpainted metal surface on the computer, such as the
metal at the back of the computer, before touching anything inside your computer.
While you work, periodically touch an unpainted metal surface on the computer to dissipate any static electricity that might harm internal components.
Unpack the replacement hard drive, and prepare it for installation.
Check the documentation for the drive to verify that it is configured for your
computer.
If your replacement hard drive does not have the bracket rails attached, remove the
rails from the old drive by removing the two screws that secure each rail to the drive.
Attach the bracket rails to the new drive by aligning the screw holes on the drive with
the screw holes on the bracket rails and then inserting and tightening all four screws
(two screws on each rail).
Gently slide the drive into place until the tabs securely click into position.
If you are installing a hard drive in the lower bay, place the drive in the bay so that the power
connector is on the left-hand side (opposite of the top hard drive).
IDE/SCSI Drive
Serial ATA Drive
If you are installing a drive that has its own controller card, install the controller card in
an expansion slot.
See the documentation that accompanied the drive and controller card to verify that the configuration is correct for your computer.
NOTICE: Match the colored strip on the cable with pin 1 on the drive (pin 1 is marked as "1").
Connect the power and hard-drive cables to the drive.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide.
Shut down the computer through the Start menu.
Ensure that your computer and attached devices are turned off. If your computer and
attached devices did not automatically turn off when you shut down your computer,
turn them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then
unplug it from the network wall jack.
Disconnect any telephone or telecommunication lines from the computer.
Disconnect your computer and all attached devices from electrical outlets, and then
press the power button to ground the system board.
If you have installed a padlock through the padlock ring on the back panel, remove the
padlock.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an
unpainted metal surface, such as the metal at the back of the computer. While you work,
periodically touch an unpainted metal surface to dissipate any static electricity that could harm
internal components.
Ground yourself by touching an unpainted metal surface on the computer, such as the
metal at the back of the computer, before touching anything inside your computer.
While you work, periodically touch an unpainted metal surface on the computer to dissipate any static electricity that might harm internal components.
If you are replacing a drive and the the new drive does not have the bracket rails
attached, remove the rails from the old drive by removing the two screws that secure
each rail to the drive. Attach the bracket to the new drive by aligning the screw holes
on the drive with the screw holes on the bracket rails and then inserting and tightening
all four screws (two screws on each rail).
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide.
Shut down the computer through the Start menu.
Ensure that your computer and attached devices are turned off. If your computer and
attached devices did not automatically turn off when you shut down your computer,
turn them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then
unplug it from the network wall jack.
Disconnect any telephone or telecommunication lines from the computer.
Disconnect your computer and all attached devices from electrical outlets, and then
press the power button to ground the system board.
If you have installed a padlock through the padlock ring on the back panel, remove the
padlock.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an
unpainted metal surface, such as the metal at the back of the computer. While you work,
periodically touch an unpainted metal surface to dissipate any static electricity that could harm
internal components.
Ground yourself by touching an unpainted metal surface on the computer, such as the
metal at the back of the computer, before touching anything inside your computer.
While you work, periodically touch an unpainted metal surface on the computer to dissipate any static electricity that might harm internal components.
NOTE: A fourth hard drive can be added to a bay using an add-in bay bracket. To order a
bracket, see Contacting Dell.
If you are installing a new drive, unpack the drive and prepare it for installation.
Check the documentation that accompanied the drive to verify that the drive is configured for your computer. If you are installing an IDE drive, configure the drive for the cable select setting.
Connect the new drive to the set of rails that are attached to the inside of the cover. If
a set of rails is not attached inside the computer cover, call Dell. See Contacting Dell.
If you are installing a replacement drive and the new drive does not have the bracket
rails attached, remove the rails from the old drive by removing the two screws that
secure each rail to the drive. Attach the bracket to the new drive by aligning the screw
holes on the drive with the screw holes on the bracket rails and then inserting and
tightening all four screws (two screws on each rail).
If you are installing a new CD/DVD drive rather than replacing a drive, remove the
front-panel inserts.
From inside the drive bay, gently press on each side of the insert until it pops out.
Check all cable connections, and fold cables out of the way to provide airflow for the
fan and cooling vents.
Close the computer cover.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then
plug it into the computer.
Connect your computer and devices to electrical outlets, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
Update your configuration information by setting the appropriate Drive option (0 or
1) under Drives: Secondary to Auto. See "Primary Drive n and Secondary Drive n" for
more information.
Verify that your computer works correctly by running the Dell Diagnostics.
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