The hard-drive bays provide space for up to two SATA or SCSI drives, an optional CD drive, and an optional diskette drive. The SCSI hard drives must be connected to a controller card. The interface and power cables for the hard drives are routed in a cable tray that is part of the fan assembly.
CD and Diskette Drives (Optional)
The optional CD drive is mounted in a bracket using two alignment pins and a spring clip on top of hard drive 0. An interposer card is connected to the back of the CD drive which allows the drive to be connected to the Pri-IDE connector on the system board.
The optional diskette drive is mounted in a bracket such as the CD drive on top of hard drive 1. The diskette drive's interface cable is connected to the Control Panel.
Removing the Optional CD Drive
CAUTION: See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Open the system. See "Opening the System" in "Troubleshooting Your System."
Disconnect the power and interface cables from the CD drive's interposer card.
Release the two captive fasteners that secure the interposer card to the hard drive 0 carrier.
See Figure 7-1.
On the side of the card that is between the card and the drive, push the plunger of each
fastener back into the fastener barrel, using the flat surface of a flat-tipped screwdriver or
other small flat object.
On the side of the interposer card closest to the system board, grasp the plunger head and
pull the plunger until it stops.
Disconnect the interposer card from the CD drive.
Press the bracket release lever that secures the CD drive to the hard drive 0 carrier. See
Figure 7-2.
Lift and tilt the CD drive up and out of the bracket as shown in Figure 7-2.
Figure 7-1. Removing and Installing the Optional CD Drive
Installing the Optional CD Drive
Align the CD drive's mounting holes with the retaining pins on the hard drive 0 bracket. See
Figure 7-1.
Rotate the drive downward until it snaps into place.
Connect the interposer card to the CD drive.
Push the plungers into the captive fastener barrels until they snap into place.
Connect the interface and power cables to the CD drive's interposer card
Close the system. See "Closing the System" in "Troubleshooting Your System."
Removing the Optional Diskette Drive
CAUTION: See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Open the system. See "Opening the System" in "Troubleshooting Your System."
Disconnect the interface cable from the diskette drive.
Press the bracket release lever that secures the diskette drive to the hard drive 1 carrier. See
Figure 7-2.
Lift and tilt the diskette drive up and out of the bracket as shown in Figure 7-2.
Figure 7-2. Removing and Installing the Optional Diskette Drive
Installing the Optional Diskette Drive
Align the diskette drive's mounting holes with the retaining pins on the hard drive 1 bracket.
See Figure 7-2.
Rotate the drive downward until it snaps into place.
Connect the interface cable to the diskette drive.
Close the system. See "Closing the System" in "Troubleshooting Your System."
SCSI Configuration Information
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.
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 optional SCSI drives 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 cable in order by ID number.
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 single SATA hard drive, the master drive (drive 0) must be connected to the SATA_PORT_0 connector on the system board. To identify system board connectors, see Figure A-3.
To boot from a single SCSI hard drive, the drive must be connected to the SCSI controller card. See the documentation that accompanied the controller card.
To boot from a SCSI RAID array, the drive must be connected to the RAID controller card. See the documentation that accompanied the controller card.
Hard Drives
Your system contains up to two non-hot-pluggable SATA or SCSI hard drives. If your system contains SCSI hard drives, they must be connected to a SCSI controller board. The cables for hard drive 1 are routed in the cable tray that is part of the fan assembly.
The procedures for removing and installing SATA or SCSI hard drives are the same.
Removing a Hard Drive
CAUTION: See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge.
Open the system. See "Opening the System" in "Troubleshooting Your System."
If applicable, remove the optional CD drive or optional diskette drive.
Disconnect the power and interface cables from the hard drive.
The interface cables for SATA hard drives are connected to the system board. See Figure A-3 for the location of the system board connectors.
The interface cables for SCSI hard drives are connected to a controller card.
Loosen the captive screw that secures the hard-drive carrier to the chassis. See Figure 7-3.
Figure 7-3. Removing the Hard-Drive Carrier
Slide the hard-drive carrier backward and lift the carrier out of the chassis.
Using a #2 Phillips screwdriver, remove the four screws that secure the hard drive to the
carrier and remove the drive from the carrier. See Figure 7-4.
Figure 7-4. Removing the Hard Drive From the Drive Carrier
Installing a Hard Drive
Align the hard-drive mounting holes with the holes in the drive carrier.
Using a #2 Phillips screwdriver, install the four screws that secure the hard drive to the carrier.
See Figure 7-4.
Align the hard-drive carrier so that the tabs on the chassis slide into the notches in the carrier.
See Figure 7-3.
Slide the carrier forward until it stops.
Tighten the captive screw that secures the hard-drive carrier to the chassis.
Connect the power and interface cables to the new drive.
The interface cables for SATA hard drives are connected to the system board. See Figure A-3 for the location of the system board connectors.
The interface cables for SCSI hard drives are connected to a controller card.
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