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Drives: Dell Precision WorkStation 340 Service Manual

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Drives

Dell Precision™ WorkStation 340 Service Manual


NOTE: Cable ends are color coded so that black identifies the floppy-disk drive cable, yellow the front I/O panel cable, orange the secondary IDE cable, white the SCSI cable, and blue the primary IDE cable.
CAUTION: To avoid the possibility of electric shock, turn off the computer and any devices, disconnect them from their electrical outlets, and then wait at least 5 seconds before you open the computer cover. Also, before you install a drive, see the other precautions in "Safety First—For You and Your Computer."
NOTICE: To avoid possibly damaging the drive by electrostatic discharge, ground yourself by touching an unpainted metal surface on the back of the computer.

Removing and Installing a Floppy Drive—Small Desktop Computer

  1. 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. Change any settings necessary for your configuration.

  1. Open the computer cover.

  2. If you are replacing a drive that is already installed in the bay, disconnect the power and floppy-drive cables from the back of the drive before you remove the drive and bracket assembly.

Floppy-Drive Cable Removal

1

power cable

2

floppy-drive cable

3

floppy-drive connector

  1. Press inward on the two tabs on the sides of the drive bay to disengage the bracket.

  2. Slide the bracket upward, and remove it from the inside of the computer.

Floppy-Drive Removal

  1. If the replacement 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.

Drive-Rail Bracket Removal and Replacement

  1. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the rails and tightening all four screws.

  2. Reinstall the 3.5-inch floppy drive and bracket assembly by gently sliding the bracket into place until the tabs securely click into position.

Floppy-Drive Installation

  1. Connect the power cable and floppy drive cable to the connectors on the drive.

  2. Close the computer cover, reconnect your computer and devices to their electrical outlets, and turn them on.

Floppy-Drive Cable Attachment

1

power cable

4

floppy-drive connector

2

floppy cable

5

power connector

3

floppy-cable connector

 

 

Removing and Installing a Floppy Drive—Mini-Tower Computer

  1. 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. Change any settings necessary for your configuration.

  1. Open the computer cover.

  2. Disconnect the power cable and the floppy-drive data cable from the drive.

  3. Press inward on the two tabs on the sides of the drive bay to disengage the bracket.

  4. Slide the drive upward, and remove it from the computer.

Floppy-Drive Removal

  1. If the replacement 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.

  2. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and tightening all four screws.

Drive Rail Bracket Removal and Replacement

  1. Gently slide the drive into place until the tabs securely click into position.

  2. Attach the floppy-drive data cable to the back of the floppy drive.

  3. Connect the power cable to the power input connector on the drive.

  4. Close the computer cover, reconnect your computer and devices to their electrical outlets, and turn them on.

Floppy-Drive Cable Attachment

1

floppy-drive cable

3

floppy-drive cable connector

2

power cable

4

floppy-drive connector

Removing and Installing a 5.25-Inch Removable Media Drive— Small Desktop Computer

  1. 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. Change any settings necessary for your configuration.

  1. Open the computer cover.

  2. Remove the removable media drive data cable from the drive.

  3. Remove the power cable and audio cable from the drive.

Removable Media Cable Removal

1

audio cable

5

power cable connector

2

removable media drive data cable

6

removable media drive connector (IDE SEC)

3

power cable

7

audio cable connector

4

data cable connector

 

 

  1. Press inward on the two tabs on the sides of the drive bay to disengage the drive from the computer.

  2. Slide the drive upward and remove it from the computer.

Removable Media Drive Removal

  1. If the replacement 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.

  2. Attach the rails to the new drive by aligning the screw holes on the drive with the screw holes on the rails and tightening all four screws.

  3. If you are installing a new drive, connect it to the set of rails that are attached to the inside of the cover.

Removable Media Drive Installation

  1. Reinstall the removable media drive and bracket assembly by gently sliding the bracket into place until the tabs securely click into position.

  2. If you are installing a drive that has its own controller card, install the controller card in an expansion slot.

NOTE: Problems may arise if two expansion cards are trying to use the same resources: memory, I/O addresses, and IRQs. To avoid this type of conflict, see "Interrupt Assignment Conflicts" in your User's Guide and the documentation that came with the card for more information.
  1. Connect a power cable to the power cable connector on the back of the drive.

  2. Connect the appropriate removable media drive data cable to the removable media drive connector on the back of the drive.

If your computer came with an IDE CD drive, use the spare connector on the existing removable media drive data cable. Otherwise, use the IDE drive data cable provided in the drive kit.

Removable Media Drive Cable Attachment

1

audio cable

5

power cable connector

2

removable media drive data cable

6

removable media drive connector (IDE SEC)

3

power cable

7

audio cable connector

4

data cable connector

 

 

  1. Connect the removable media drive data cable to the system board or a controller card, depending on the type of drive.

    • For a CD drive, connect the other end of the removable media drive data cable to the removable media data connector labeled "IDE SEC" on the system board.

    • For a drive that comes with its own controller card, connect the other end of the IDE drive data cable to the controller card.

  2. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.

  3. If the removable media drive bay was previously empty, remove the front-panel insert from the front panel.

  4. Close the computer cover, reconnect your computer and devices to their electrical outlets, and turn them on.

  5. If necessary, update your configuration information in system setup.

  6. Verify that your computer works correctly by running the Dell Diagnostics.

For more information on using the Dell Diagnostics, see your User's Guide.

Removing and Installing a 5.25-Inch Removable Media Drive— Mini-Tower Computer

If you are replacing a removable media drive and bracket assembly, follow these instructions. If you are installing a new drive that does not have bracket rails attached, connect the drive to the set of rails that are attached to the inside of the cover.

NOTE: If there are no screws with the bracket in the mini-tower computer, contact Dell. See "Getting Help" in your User's Guide for information on contacting Dell.
  1. 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. Change any settings necessary for your configuration.

  1. Open the computer cover.

  2. Remove the removable media drive data cable from the removable media drive.

  3. Remove the removable media drive power cable and audio cable from the removable media drive.

  4. Press inward on the two tabs on the sides of the drive bay to disengage the drive from the computer.

Removable Media Drive Removal

  1. Slide the drive upward and remove it from the computer.

  2. If the replacement 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.

Drive Bracket Rail Removal and Replacement

  1. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and tightening all four screws.

  2. Reinstall the removable media drive and bracket assembly in the computer by gently sliding the drive into place until the tabs securely click into position.

  3. If you are installing a drive that has its own controller card, install the controller card in an expansion slot.

NOTE: Problems may arise if two expansion cards are trying to use the same resources: memory, I/O addresses, and IRQs. To avoid this type of conflict, see "Interrupt Assignment Conflicts" in your User's Guide and the documentation that came with the card for more information.
  1. Connect the removable media drive power cable and audio cable to the removable media drive.

  2. Connect the removable media drive data cable to the removable media drive.

If your computer came with an IDE CD drive, use the spare connector on the existing removable media drive data cable. Otherwise, use the IDE drive data cable provided in the drive kit.

  1. If the removable media drive bay was previously empty, remove the front-panel insert from the front panel.

Removable Media Drive Cable Attachment

1

removable media drive data cable

4

power cable connector

2

audio cable

5

data cable connector

3

removable media drive connector (IDE SEC)

6

power cable

NOTE: If you install a second removable media drive, do not route the cable through the plastic clips on the side of the floppy-drive bay.
  1. Close the computer cover.

Removing and Installing the Hard Drive—Small Desktop Computer

CAUTION: To avoid the possibility of electric shock, turn off the computer and any devices, disconnect them from electrical outlets, and then wait at least 5 seconds before you open the computer cover. Also, before you install a drive, see the other precautions in "Safety First—For You and Your Computer."
  1. If you are replacing a hard drive that contains data you want to keep, be sure to make a backup of your files before you begin this procedure.

NOTE: For information on adding a SCSI drive, see the documentation that came with the drive and "SCSI Device Installation Guidelines."
NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
NOTICE: When you unpack the drive, do not set it on a hard surface, which may damage the drive. Instead, set the drive on a surface such as a foam pad, that will sufficiently cushion it.
  1. Unpack the drive, and prepare it for installation.

Check the documentation for the drive to verify that it is configured for your computer.

  1. Open the computer cover.

  2. Remove the plastic shroud covering the hard drive by pressing in on the indented tab at the top of the shroud and lifting the shroud away.

Hard-Drive Shroud and Hard-Drive Removal

  1. Disconnect the power and hard-drive data cables from the drive.

Hard-Drive Cable Removal

1

hard-drive data cable

2

power cable

3

hard-drive connector (IDE PRI)

  1. Remove the drive bracket from inside the computer.

    1. If a hard drive is already installed in the drive bracket, disconnect the power and hard-drive data cables from the drive.

    1. Press in on the tabs on each side of the bracket, and slide it up and out.

  2. If the replacement 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.

Drive Bracket Rail Removal and Replacement

  1. Attach the bracket rails to the new hard drive by aligning the four screw holes of the drive and bracket and then inserting and tightening the screws that came with your upgrade kit.

  2. Reinstall the hard-drive bracket by gently sliding the bracket into place until you hear it securely click.

Installing a Hard Drive

NOTICE: To avoid possible damage to the computer, you must match the colored stripe on the hard-drive data cable with pin 1 on the drive's data cable connector and with the IDE drive data connector (labeled IDE_PRI) on the system board.
  1. Connect a power cable to the power cable connector on the drive, and connect the hard-drive data cable to the hard drive.

Check all connectors to be certain that they are properly cabled and firmly seated.

Hard-Drive Cable Attachment

1

hard-drive data cable

4

hard-drive data cable connector

2

power cable

5

hard-drive connector (IDE PRI)

3

power cable connector

 

 

  1. If it is not already connected, connect the other end of the hard-drive data cable to the IDE PRI connector on the system board.

  2. Replace the plastic shroud covering the drive by inserting the two tabs on the bottom into the holes and snapping the top into place.

  3. Close the computer cover, reconnect your computer and devices to their electrical outlets, and turn them on.

  4. If the drive you just installed is the primary drive, insert a bootable floppy disk into drive A.

  5. Turn on the computer.

  6. Enter system setup, and update the appropriate Primary Drive option (0 or 1).

See "System Settings" in your User's Guide for complete information on system setup.

  1. Reset the chassis intrusion detector.

  2. Restart the computer.

  3. Partition and logically format the computer's hard drive before proceeding to the next step.

For partition and format instructions, refer to the documentation that came with the operating system.

  1. Test the hard drive by running the Dell Diagnostics.

See "Solving Problems" in your User's Guide for complete information.

  1. If the drive you just installed is the primary drive, install the operating system on the hard drive.

For instructions, refer to the documentation that came with the operating system.

Removing and Installing a Hard Drive—Mini-Tower Computer

  1. If you are replacing a hard drive that contains data you want to keep, be sure to make a backup of your files before you begin this procedure.

NOTE: For information on adding a SCSI drive, see the documentation that came with the drive and "SCSI Device Installation Guidelines."

If you are adding a second hard drive to the mini-tower computer, see "Adding a Second Hard Drive."

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
NOTICE: When you unpack the drive, do not set it on a hard surface, which may damage the drive. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
  1. Unpack the drive, and prepare it for installation.

Check the documentation for the drive to verify that it is configured for your computer.

  1. Open the computer cover.

Hard Drive Removal

  1. Disconnect the power and hard-drive data cables from the drive.

Hard-Drive Cable Removal

1

hard-drive data cable

2

power cable

3

hard-drive connector (IDE PRI)

  1. Press in on the tabs on each side of the bracket, and slide it up and out.

  2. If the replacement 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.

NOTICE: To avoid possibly damaging the drive by ESD, ground yourself by touching an unpainted metal surface on the back of the computer.
NOTICE: When you unpack the drive, do not set it on a hard surface, which may damage the drive. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
  1. If necessary, attach the bracket rails to the new hard drive by aligning the four screw holes of the drive and bracket and then inserting and tightening the screws that came with your upgrade kit.

  2. Reinstall the hard-drive bracket by gently sliding the bracket into place until you hear it securely click.

Hard-Drive Replacement

  1. Connect a power cable to the power cable connector on the back of the drive, and connect the hard-drive data cable to the hard-drive data cable connector on the drive.

Hard-Drive Cable Attachment

1

hard-drive data cable

4

hard-drive data cable connector

2

power cable

5

hard-drive connector (IDE PRI)

3

power cable connector

 

 

  1. Check all connectors to be certain that they are properly cabled and firmly seated.

NOTICE: To avoid possible damage to the computer, you must match the colored stripe on the hard-drive data cable with pin 1 on the drive's data cable connector and with the IDE drive data connector (labeled IDE_PRI) on the system board.
  1. If it is not already connected, connect the other end of the hard-drive data cable to the IDE_PRI connector on the system board.

  2. Close the computer cover.

  3. If the drive you just installed is the primary drive, insert a bootable system floppy disk into the floppy drive.

  4. Turn on the computer.

  5. Enter system setup and update the appropriate Primary Drive option, 0 or 1.

See "System Settings" in your User's Guide for complete information on system setup.

  1. Reset the chassis intrusion detector.

  2. Restart the computer.

  3. Partition and logically format the computer's hard drive before proceeding to the next step.

For partition and format instructions, refer to the documentation that came with the operating system.

  1. Test the hard drive by running the Dell Diagnostics.

See "Finding Solutions" in your User's Guide for complete information.

  1. If the drive you just installed is the primary drive, install the operating system on the hard drive.

For instructions, refer to the documentation that came with the operating system.

Adding a Second Hard Drive

NOTICE: Ground yourself by touching an unpainted metal surface on the back of the chassis.
NOTICE: When you unpack the drive, do not set it on a hard surface, which may damage the drive. Instead, set the drive on a surface, such as a foam pad, that will sufficiently cushion it.
  1. Unpack the drive, and prepare it for installation.

Check the documentation for the drive to verify that it is configured for your computer.

  1. Open the computer cover.

  2. Remove the two green plastic rails inside the hard-drive bay.

These rails are not attached to the inside of the hard-drive bay with screws. To remove the rails, gently pull the rails up and out of the bay.

  1. Attach the rails to the hard drive using the two screws attached to the rails.

Ensure that the rail tabs are positioned at the back of the hard drive.

NOTICE: Do not install a drive into the lower hard-drive bay until you remove the green drive rails from inside the hard-drive cage.
  1. Remove the first hard drive from the upper bay and install it in the lower bay.

    1. Disconnect the power cable and the data cable from the back of the first hard drive.

    1. Press in the two green rail tabs and pull the first hard drive out of the upper bay.

    2. Gently slide the first hard drive into the lower bay until you hear a click.

    3. Reconnect the power cable and the data cable to the back of the hard drive.

  2. Gently slide the new hard drive into the upper bay until you hear a click.

Second Hard Drive Installed

1

rail tabs (2)

2

second hard drive in upper bay

3

first hard drive in lower bay

4

hard drive cage

NOTICE: Match the colored strip on the cable with pin1 on the drive.
  1. Locate the extra connector on the drive cable that is attached to the first hard drive and attach the connector to the second hard drive.
    For more information, see "IDE Drive Addressing."

IDE Drive Addressing

All IDE devices require that you configure the cable select setting, which assigns master and slave status to devices according to their position on the interface cable. You usually configure a drive for cable select by setting a jumper or switch, depending on the drive. Refer to the drive documentation in your upgrade kit for information on configuring devices for the cable select setting. 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 master or boot device (drive 0), and the device attached to the middle connector on the interface cable is the slave device (drive 1).

With the two IDE interface connectors on the system board, your computer supports up to two IDE devices. IDE hard drives should be connected to the IDE interface connector labeled "IDE PRI." (Always connect removable media drives to the IDE interface connector labeled "IDE SEC.")

Connecting Drives

When you install a drive, you connect two cables—a DC power cable and an interface cable—to the back of the drive. Your drive's power input connector (to which you connect the DC power cable) resembles the following connector.

Power Cable Connector

1

power cable

2

power input connector

The drive's interface connector is a card-edge connector or a header connector, as shown in the following figure.

Drive Interface Connectors

1

header connector

2

colored stripe on the cable

3

interface cable

When you attach the interface cable to a drive, be sure to match the colored stripe on the cable to pin 1 of the drive's interface connector. For the location of pin 1 on the drive's interface connector, see the documentation that came with the drive.

When you disconnect an interface cable from the system board, be sure to press in on the locking tabs on the cable connector before you disconnect the cable. When you attach an interface cable to the system board, be sure that the locking tabs snap into place so that the cable is firmly attached to the connector on the system board.

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 reverse the 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.

IDE Device Installation Guidelines

General Guidelines

With the two IDE drive cable connectors on the system board, your computer can support up to four IDE drives:

  • Cable the primary IDE system-board connector to IDE hard drives.

  • Cable the secondary IDE connector to IDE CD, DVD, tape, DAT, and zip drives.

To locate the IDE drive data connectors on the system board, see "System Board Components" or the interior service label. Each IDE drive data connector on the system board supports the following:

  • Two devices, master and slave

  • Logical blocking address (LBA)

  • PIO Mode 3 and Mode 4

  • Ultra ATA/100 (backward-compatible with ATA/66 and ATA/33)

IDE Cables

To transfer data at full speed, Ultra ATA/100 hard drives require an 80-conductor cable like that used with ATA/66 drives. The 80-conductor cable has a 40-pin connector like the ATA/33 cable, but it has twice as many wires within the cable. If you use an ATA/33 cable with Ultra ATA/100 hard drives, the drives will operate properly, but data will transfer at ATA/33 speeds.

NOTICE: Dell recommends that you use only IDE cables purchased from Dell. Cables purchased elsewhere are not guaranteed to work with Dell™ computers.

SCSI Device Installation Guidelines

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 "System Board Components" or the interior service label.

NOTE: The system board SCSI controller will support hard drives only. Do not connect CD or DVD drives, tape drives, DAT drives, and so on. An add-in SCSI controller can be installed in your computer for this purpose.
  • A SCSI controller card installed in your computer.

SCSI ID Numbers

Internal SCSI devices must have a unique SCSI ID number from 0 to 15. Each SCSI bus will have a set of SCSI ID numbers from 0 to 15.

When SCSI devices are shipped from Dell, the default SCSI ID numbers are assigned as follows:

System Board Controller

Optional 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.

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, refer to 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.

Device Termination

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.

Dell recommends 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.

General Guidelines

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, refer to 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 installing 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 IDE 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. Refer to the documentation that came with your SCSI software drivers for information on installing the appropriate drivers and preparing your SCSI hard drive for use.

SCSI Cables

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 (optional SCSI cards such as 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.

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