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."
When you install a drive, you connect two cables�a DC power cable and an
interface cable�to the back of the drive.
1
power cable
2
power input connector
1
interface connector
2
colored stripe on cable
3
interface cable
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.
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:
System Board Controller
Controller Card
Device
ID
Device
ID
Controller
7
Controller
7
Boot hard drive
0
Boot hard drive
0
CD or DVD drive
5
tape or DAT drive
6
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 IDE hard
drives are installed. If you have any EIDE devices on the second IDE
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 (optional on the Dell Precision 450 computer), 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 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.
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).
1
drive
2
bracket rails (2)
3
screws (4)
Gently slide the drive into place until
the tabs securely click into position.
NOTE: If you are
installing a hard drive in the lower bay, the drive should be placed in
the bay so that the power connector is on the left- hand side (opposite of
the top hard 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.
1
hard-drive cable
2
power cable
Check all connectors to be certain that
they are properly cabled and firmly seated.
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).
1
drive
2
bracket rails (2)
3
screws (4)
Gently slide the drive into place until
the tabs securely click into position.
Attach the power and floppy-drive cables
to the floppy drive.
1
power cable
2
floppy-drive cable
If you are installing a new floppy 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.
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 computer cover. If a set of rails is
not attached inside the cover, contact 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).
1
drive
2
bracket rails (2)
3
screws (4)
Gently slide the drive into place until
the tabs securely click into position.
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.
Connect the power and CD/DVD drive cables
to the drive.
If you are adding a drive that has an audio cable, connect the
audio cable to the audio connector on the system board.
1
audio cable (some drives do not have this cable)
2
CD/DVD drive cable
3
power cable
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.
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 "Advanced Features" in your User's
Guide for more information.
To verify that your computer works
correctly, run the Dell Diagnostics.
