
A C - 2 1 7 0 0    WESTERN DIGITAL
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders        | 3308|     |
Capacity form/unform  1707/      MB        Heads            |   16|     |
Seek time   / track      /     ms          Sector/track     |   63|     |
Controller           IDE / ATA3 ENHANCED   Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate          MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method                                    operating  | non-operating
                                                  -------------+--------------
Supply voltage                  Temperature *C                 |
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle               W     Shock        g                 |
       seek               W     Rotation   RPM
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

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WESTERN  CAVIAR  INSTALLATION GUIDE 79-850086-003 SO225  11/98


  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |XX J2
  |                                                         |XX Inter-
  |                                                         |XX face
  |                                                         |XX
  |                                                         |.X
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |X1
  |                                                         |+-+
  |                                                         || |J8
  |                                                         |+-1
  |                                                         |XX Power
  |                                                         |XX J3
  +---------------------------------------------------------+  1



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WESTERN  AC310100 TECHNICAL REFERENCE MANUAL 8/1998

 Jumper setting
 ==============


 J8  Master/Slave/Cable Select Configuration
 -------------------------------------------

    +5-3-1+ Single (Neutral Position)
    |xxx o| Factory default. The jumper in this position has no effect
    |o o o| on single hard drive configurations.
    +6-4-2+


    +5-3-1+ Cable Select              +5-3-1+ Master Drive
    |o o X| option.                   |X o o| Configuration
    |o o X|                           |X o o| (Dual Drives)
    +6-4-2+                           +6-4-2+


    +5-3-1+ Slave Drive
    |o X o| Configuration
    |o X o| (Dual Drives)
    +6-4-2+


 The Caviar can be assigned as either a single, master, or slave
 drive.


 Jumper Settings
 ---------------
 The Caviar drive has a jumper block (J8) located next to the 40-pin
 connector on the drive. The Caviar can be assigned as either a
 single, master, or slave drive.

 Caviar drives are shipped with a jumper shunt in the neutral storage
 position (across pins 5 and 3).

 The additional foour pins on the 10-pin connector are RESERVED
 for future use.

 Single Drive Mode
 - If you are installing the Caviar drive as the
 only hard drive in the system, leave the jumper in the neutral
 storage position. Jumpers are not required for single drive
 installations. Note that even with no jumper installed, the Caviar
 checks the DRIVE ACTIVE/SLAVE PRESENT (DASP) signal to determine if a
 slave IDE drive is present.

 If you have a dual installation (two hard drives), you must designate
 one of the drives as the master and the other as the slave drive. The
 jumper pins on the J8 connector need to be configured for the dual
 installation.


 Master Drive Mode -
 To designate the drive as the master, place a jumper shunt on pins
 5-6. With the Caviar configured as the master drive, the Caviar
 assumes that a slave drive is present. The jumper on pins 5-6 is
 optional if the slave drive follows the same protocol (Common Access
 Method AT Bus Attachment) as the WD Caviar drive.


 Slave Drive Mode
 - To designate the drive as the slave, place a jumper shunt on pins
 3-4. When the Caviar is configured as the slave drive, the Caviar
 delays spin up for three seconds after power-up reset. This feature
 prevents overloading of the power supply during power-up.


 Cable Select (CSEL)
 - Caviar also supports the CSEL signal on the drive cable as a drive
 address selection. Place a jumper shunt on pins 1-2 to enable this
 option. When enabled, the drive address is 0 (Master) if CSEL is low,
 or 1 (Slave) if CSEL is high.

 Do not install the CSEL jumper shunt when installing the Caviar drive
 in systems that do not support the CSEL feature.


 J3   DC Power and pin connector assignments
 -------------------------------------------
      +------------+   pin 1    +12 V
      | 4  3  2  1 |   pin 2    GND
      +------------+   pin 3    GND
                       pin 4    + 5 V


 Alternate Jumper Settings for Drives Larger than 2.1 GB
 =======================================================
 On initial boot, the system BIOs may lock up on drives that have
 more than 4095 cylinders (driver larger than 2.1 GB). Alternate
 jumper setting have been provided for the Caviar drives that are
 larger than 2.1GB to overcome this system BIOS limitation. These
 jumper settings cause the drive to report 4092 cylinders (instead of
 the usual 8912, 6,296, 11,184, or 7752) in Word 1 of the Identify
 Drive data.

 The true capacity is still reported in Word 54 and Word 60-61. All
 other Identify Drive data remains the same.

 NOTE
 Do not use these alternate jumper settings in Windows NT systems!

    +5-3-1+ Single Drive              +5-3-1+ Master Drive
    |X X o| Configuration             |X o X| Configuration
    |X X o|                           |X o X| (Dual Drives)
    +6-4-2+                           +6-4-2+


    +5-3-1+ Slave Drive
    |o X X| Configuration
    |o X X| (Dual Drives)
    +6-4-2+

 If these jumper settings are invoked, the cable select option is not
 avaiable.

 Carefully place the shunt.
 Push the shunt into place until it is flush against the base of the
 jumper block.

 You will know if your system BIOS has this limitation after
 installing your drive. On the initial boot your system may

 a) lock up,
 or b) show a much smaller drive capacity.

 a) If your system does not respond after two minutes (i.e., locks
    up), follow these steps:

    1. Turn your system power off. Check the IDE interface and power
       supply cables.

    2. Check jumper settings.

    3. Turn your system power on.

    4. Try to enter your CMOS setup.

 If your system still doesn't respond, it may be because you have a
 system BIOS that doesn't support drives with more than 4095
 cylinders. If this is the case, these solutions are available:

 1. Use EZ-Drive. If your system locks up before you can enter CMOS,
    you may need to turn your system power off and disconnect the IDE
    cable from the system to access your CMOS setup.

 Enter your CMOS setup. Refer to your system manual for instructions.

 Select the Hard Disk Type option for the new Western Digital hard
 drive.

 Select a user defined drive type and enter: 1023 x 16 x 63.
 Turn your system off and reconnect your IDE cable to the system.
 These new settings will allow your system to boot so that you can
 install EZ-Drive to access the full capacity of your drive.

 - OR -

 If you don't have the user defined drive type, use option 2 or 3
 below.

 2. Rejumper the drive and install EZ-Drive.
    This option changes the parameters reported to the BIOS. In the
    future, if you move this drive to another system, you must put the
    jumper back to the standard position.

 Note: These special jumper settings WILL NOT work for OS/2 Warp,
       Novell NetWare, or UNIX.

 - OR -

 3. Upgrade your BIOS. A properly upgraded BIOS will support the
    drive. Contact your system manufacturer the system BIOS
    limitation.



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WESTERN  CAVIAR  INSTALLATION GUIDE 79-850086-003 SO 225  11/98

 Notes on installation
 =====================

 Installation direction
 ----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |
   +-----------------+

 The drive will operate in all axis (6 directions).


 HARDWARE INSTALLATION
 ---------------------
 Before you begin, gather these supplies:
 - Computer system manual

 - Operating system installation disks or CD-ROM

 - Operating system manual

 - Small Phillips screwdriver and flat-blade screwdriver

 - Bootable DOS disk or Windows 95 or 98 startup disk


 Be sure to write down your serial and model numbers and the CCC
 code. These numbers are located on the drive label.


 Create a Bootable DOS Disk
 --------------------------
 For single hard drive installations, you must have a bootable DOS
 disk to install your new hard drive with EZ-Drive. Disk 1 of your
 standard DOS installation disk set is a bootable disk. If you do not
 have your original DOS installation disks, you can create a bootable
 DOS disk if you have a bootable C: hard drive.

 1. Insert a blank floppy disk into drive A.

 2. At the C: prompt, type format a:/s. Press ENTER.
    Create a Windows 95 or 98 Startup Disk

 For Windows 95 or 98 systems, you must have a bootable DOS or
 Windows 95 or 98 Startup disk to install your new hard drive with
 EZ-Drive. If using Windows 95 or 98, you should create a Windows
 95 Startup disk. To create a Windows 95 or 98 Startup disk you must
 have a bootable C: hard drive.

 1. Insert a blank floppy disk into drive A.

 2. From Windows 95 or 98, click My Computer.

 3. Click Control Panel.

 4. Click Add/Remove Programs.

 5. Select the Startup Disk tab.

 6. Click Create Disk. Follow the prompts to create a Windows 95
    Startup disk.


 Back Up Existing Drives
 -----------------------
 Protect your data by backing up your existing hard drive before
 installing your new Western Digital hard drive. Save the data to
 removable media such as floppy disks or tape. Most operating systems
 include a backup utility. Consult your operating system or utilities
 documentation for backup instructions.


 Unpacking and Handling the Hard Drive
 -------------------------------------
 Western Digital hard drives are precision instruments and should be
 handled with care during unpacking and installatiom. Hard drives are
 typically damaged by rough handling, shock, vibration, or
 electrostatic discharge (ESD). Be aware of the following precautions
 when unpacking and installing your Western Digital hard drive.

 - Do not unpack your hard drive until you are ready to install it.
   After your WD hard drive is unpacked, place the drive on the static
   shielding bag on a clean, level, padded work area. Your Western
   Digital hard drive comes packaged in a static shielding bag.

 - Save the packing materials in case you need to return your hard
   drive. Shipping your hard drive in anything other than the original
   packaging or WD supplied or approved materials will void your
   warranty.

 - To avoid ESD problems, ground yourself by touching the metal
   chassis of the computer before handling the hard drive. Articles of
   clothing generate static electricity. Do not allow clothing to come
   in direct contact with the hard drive or circuit board components.

 - Handle the hard drive by the sides only. Avoid touching the circuit
   board components.

 - Do not drop or knock the hard drive.

 - Before installation, do not stack hard drives or stand your Western
   Digital hard drive on its edge. You can, however, mount your hard
   drive horizontally or vertically.

 - Do not remove the tape seal or any labels from the drive; the
   warranty will be void.


 Open Your Computer
 ------------------
 1. Turn off your system.

 2. Discharge static electricity by touching the metal chassis of the
    computer.

 3. Unplug your computer.

 4. Remove the computer's outside cover. Consult your computer
    system manual for details. Be sure to keep all screws and other
    parts together for easy reassembly.


 Removing Existing Hard Drives
 -----------------------------
 If replacing an existing drive, follow these instructions.

 IMPORTANT
 Be sure to turn off the system power and unplug the power.

 1. Disconnect the power cord and IDE interface cable.

 2. Remove screws and slide the hard drive out of the drive bay.
    Handle the hard drive with care. Be careful not to scratch, tear,
    or remove the tape seal on the drive; this will void the warranty.

 If installing your new Western Digital hard drive with an existing
 drive on separate IDE interface cables, leave the jumper in the
 neutral storage position for possible future use. The system
 recognizes each drive as a single, stand-alone drive. Master/slave
 jumper settings are only used when there are two devices on the same
 IDE interface cable.

 Note for Apple Users: Apple systems do not support master/slave
 configurations. You can only install one EIDE hard drive to each
 port.

 If installing your new Western Digital hard drive with a non-Western
 Digital hard drive, obtain jumper configuration information from the
 EZ-Drive software diskette, or your original drive manufacturer.


 Mounting Hardware
 -----------------
 Inspect the bay to determine whether it is a 3.5-inch or 5.25-inch
 bay. The WD hard drive fits into a 3.5-inch bay. If installing the
 WD hard drive i- a 5.25-inch bay, you must install 5.25-inch mounting
 hardware. If you do not have mounting brackets, contact your system
 manufaturer, your local computer dealer, or call Western Digital's
 technical support.


 Drive Rails (Optional)
 ----------------------
 Some computer systems have 5.25-inch drive bays that require unique
 sliding drive rails to complete the hard drive installation. Because
 each system manufacturer has a different type of drive rail, rails
 are not included with WD hard drives.

 If your system requires drive rails, contact the computer system
 manufacturer. The following list provides phone numbers for common
 system manufacturers.


 Installing your new WD hard drive
 ---------------------------------
 IMPORTANT
 Your system must be turned off before connecting or disconnecting the
 power supply to the drive.

 1. Thread the cable through the empty drive bay and slide in the
    WD hard drive.

 2. Attach the end of the 40pin IDE interface cable to the 40-pin
    connector on the back of the WD hard drive. Match pin socket 1 on
    the IDE cable (indicated by a color stripe on the cable) to pin 1
    on the Western Digital hard drive.

    Note for Apple Users: Use an Apple supplied interface cable only.

    Pin 40 on an Apple supplied interface cable is indicated by a
    color stripe on the cable.

 3. Attach the computer system power supply cable to the 4 pin
    power connector on the back of the Western Digital hard drive.
    The 4 pin connector is keyed to ensure proper insertion.

 4. Single Installations: Attach the end of the 40 pin IDE interface
    cable from the Western Digital hard drive to the 40 pin connector
    on the motherboard or controller card. Match pin socket 1
    (indicated by a color stripe on the cable) on the IDE interface
    cable (next to the drive power connector) to pin 1 on the
    motherboard or controller card.


 Dual Installations
 ------------------
 Connect the two hard drives by using a 40 pin, three-connector IDE
 interface cable. Match pin socket 1 on the 40 pin, three-connector
 IDE cable to pin 1 on the drive's connector.

 5. Mount the WD hard drive in the drive bay using the four mounting
    screws provided. For proper grounding, be sure to use all four
    screws.

    If your system does not have an extra power connector, purchase a
    Y-adapter from your computer dealer.

 6. Check all cable connections. Replace the system cover.

 7. Plug in your computer.

 8. See the EZ-Drive Software Installation section for hard drive
    setup instructions.



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WESTERN  CAVIAR SERIES  INSTALLATION GUIDE 79-000564-000

 Description
 -----------
 The Western Digital Caviar intelligent disk drives are available in
 80, 120, 170 (single or dual disks), 200, 250, and 340 megabyte
 capacities. These drives are suitable as new, upgrade, or replace-
 ment drives for installation in your IBM PC/AT or compatible system.


 Advanced Defect Management
 --------------------------
 The Caviar is preformatted (low-level) at the factory and comes with
 a full complement of defect management functions. Extensively tested
 during the manufacturing process, media defects found during
 intelligent burn in are mapped out with Western Digital's high
 performance defect management technique. No modifications are
 required before installation.


 Embedded Servo Control
 ----------------------
 The Caviar festures an embedded servo concept as the means of
 providing sampled position feedback information to the head position
 servo system. This high sampling rate supports the high frequency
 servo bandwidth required for fast access times as well as highly
 accurate head positioning. The embedded servo concept provides the
 means of generating accurate feedback information without requiring
 a full data surface as would a dedicated servo control concept.

 Servo bursts are located along a radial path from the disk center,
 ensuring that head positioning data occurs at constant intervals.


 Voice Coil Assembly
 -------------------
 The voice coil assembly consists of an upper and lower magnetic plate
 a flat rotary coil, a bidirectional crash stop and a pivot bearing.
 The pivot assembly fits in the actuator block bore.


 Defect Management
 -----------------
 Every Caviar undergoes factory-level intelligent burn in, which
 thoroughly tests for and maps out defective sectors on the media
 before the drive leaves the manufacturing facility. Following the
 factory tests, a primary defect list is created. The list contains
 the sector cylinder and head numbers for all defects. The purpose of
 the sector/track map is to manage the reallocation of spare sectors
 and tracks after they have been assigned.

 Defects managed at the factory are sector slipped. Grown defects that
 can occur in the field are handled by realocation to spare sectors on
 the inner cylinders of the drive.


 Format Characteristics
 ----------------------
 In order to be compatible with existing industry standard defect
 management utility programs, the Caviar supports logical format. When
 the host issues the Format Track command, the Caviar performs a
 logical version of this command in response to the host's interleave
 table request for good and bad sector marking or assign/unassign the
 sector to/from an alternate sector.

 If the host issues the Format Track Command during normal operating
 modes, the data fields of the specified track are filled with a data
 pattern of all zeros. The interleave table identifies any bad sectors
 on a given track. The interleave table must contain all appropriate
 number of bytes of data. There are two bytes per sector for each
 entry in the interleave table. The first byte marks the sector as
 good or bad.



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WESTERN   CAVIAR SOFTWARE


