
S T 3 6 4 5 0 A   M E D A L I .   P R O    SEAGATE
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders        | 6536|     |
Capacity form/unform  6450/      MB        Heads          10|     |     |
Seek time   / track   2.0/10.0 ms          Sector/track     |   63|     |
Controller           IDE / ATA2 FAST/ENHA  Precompensation
Cache/Buffer           512 KB MULTI-SEGMEN Landing Zone
Data transfer rate   12.000 MB/S int       Bytes/Sector      512
                     16.600 MB/S ext PIO1
Recording method     PRML                           operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 70
Power: sleep              W     Humidity     %                 |
       standby        1.0 W     Altitude    km                 |
       idle           7.3 W     Shock        g        10       |     75
       seek          10.0 W     Rotation   RPM      5400
       read/write     8.5 W     Acoustic   dBA        30
       spin-up            W     ECC        Bit   SMART
                                MTBF         h     500000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

**********************************************************************
                        L   A   Y   O   U   T
**********************************************************************
SEAGATE  ST36450/451A  INSTALLATION GUIDE


  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |XXI
  |                                                         |XXN
  |                                                         |XXT
  |                                                         |XXE
  |                                                         |XXR
  |                                                         |XXF
  |                                                         |XXA
  |                                                         |XXC
  |                                                         1XXE
  |                                                         |+-+
  |                                                     J5  || |Jumper
  |                                                         |+-+1
  |                                             +-+         |XX Power
  |                                             +-+         |XX
  +---------------------------------------------------------+  12V



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
SEAGATE  ST36450/451A  INSTALLATION GUIDE  MEDALIST PRO 6450/6451

 Jumper Setting
 ==============

 J5 Options jumper block
 -----------------------
 The options jumper block (J5) is used to configure the drives for
 operation. It is the 8-pin dual header between the I/O connector and
 the power connector. Pin 1 is located next to the power connector and
 is farthest from the printed circuit board. It accepts 0.1-inch
 jumpers. The options jumper block is used to:

 - Configure the drive for single-drive operation.

 - Configure the drive as the master with an ATA-compatible slave.

 - Configure the drive as the slave.

 - Configure the drive for alternate capacity.

 - Configure the drive for cable select.

 - Install a remote LED.

 The drive is shipped with a spare jumper attached to pins 6 and 8.
 Use this jumper to configure the drive.

   7     1
   * * * *  One drive only
   * * * *
   8     2

   7     1
   * * * *
   xxx * *  Spare Jumper
   8     2

   7     1
   * X * *  Drive is slave
   * X * *
   8     2

   7     1
   X * * *  Master with an ATA-compatible slave
   X * * *
   8     2

   7     1
   * * * X  Alternate Capacity (AC)
   * * * X
   8     2

   7     1
   X X * *  Cable Select
   X X * *
   8     2

   7     1
   * * X *  Remote LED connection
   * * X *
   8     2


 Master/slave configuration
 --------------------------
 Use the following settings to configure the drive as a master or a
 slave.

 One drive only
 The drive is configured at the factory for single-drive operation. No
 jumpers are required for single-drive operation. The spare jumper on
 pins 6 and 8 does not affect drive operation.

 Drive as slave
 Place a jumper on pins 5 and 6. Drive as master with an
 ATA-compatible slave. Place a jumper on pins 7 and 8.


 Alternate capacity jumper
 -------------------------
 This jumper lowers the drive capacity by setting the default
 translation to 4.092 cylinders. Some BIOSs that only auto-detect may
 require this jumper. Place a jumper on pins 1 and 2 of the J5 options
 jumper block to enable this option. When installing this jumper, you
 may need third-party partitioning software to achieve full capacity
 of the drive.


 Cable-select option
 --------------------
 Computers that use cable-select determine the master and slave drives
 by selecting or deselecting pin 28, CSEL, on the interface bus.

 Master and slave drives are determined by their physical position on
 the cable.

 - The drive plugged into the I/O connector that carries the CSEL
   signal is the master.

 - The drive plugged into the I/O connector that does not carry the
   CSEL signal is the slave.

 To configure the drives for computers that use cable select:
 - Install jumpers on pins 5 and 6 and pins 7 and 8.

 - Connect the drives to the cable.


 Remote LED connection
 ---------------------
 You can connect a remote LED to pins 3(-) and 4(+) of the options
 jumper block (J5). Do not install a shunt jumper on these pins.
 Because the jumper block uses a 0.1-inch connector, you may need to
 replace the current connector. Use Seagate connector part number
 10562-001 or an equivalent.



**********************************************************************
                      I   N   S   T   A   L   L
**********************************************************************
SEAGATE  ST36450/451A  INSTALLATION GUIDE

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

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

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

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


 Mounting the drive
 ------------------
 You can mount the drive in any orientation.

 Use the set of mounting guidelines below that are appropriate to the
 type of mounting holes used: either bottom mounting holes or side
 mounting holes.

 Bottom mounting holes
 Insert four 6-32 UNC screws into the four bottom mounting holes as.

 Caution. Do not insert the bottom mounting screws more than 0.20
 inches (6 turns) into the drive frame.

 Side mounting holes
 Use four 6-32 UNC screws in four of the six available side mounting
 holes. Use two mounting holes on each side of the drive.

 Caution Do not insert the side mounting screws more than 0.20 inches
         (6 turns) into the drive frame. If you use a screw that is
         too long, you risk damaging the drive's circuit board.


 Multisegmented cache buffer
 ---------------------------
 The Medalist Pro ST36450A and ST36451A drives are available with a
 512-Kbyte, multisegmented cache buffer that improves performance by
 reducing access times.

 Read look-ahead
 The drive uses the read segments to store additional logical sectors,
 after the last requested sector, into a buffer before the computer
 requests the additional sectors. The cache buffer stores data from
 the start of a read until the buffer segment is full or until another
 command is received.

 Write immediate
 The drive uses the write segment to store write commands and data.
 After the drive receives all of the data for the command, it issues a
 write complete. Then, the drive writes the data to the disc.

 Write merging
 The drive accepts contiguous write commands and executes them as one
 command.


 Start and stop times
 --------------------
 Within 20 seconds after power is applied, the drive is ready. Within
 15 seconds after power is removed, the drive spindle stops rotating.


 Auto-park
 ---------
 During power-down, the read/write heads automatically move to the
 landing zone. The heads park inside the maximum data cylinder and the
 magnetic actuator-lock engages. When power is applied, the heads
 recalibrate to track 0.


 Handling and static-discharge precautions
 -----------------------------------------
 After you unpack the drive, and before you install it in a system, be
 careful not to damage it through mishandling. Observe the following
 standard handling and static-discharge precautions:

 Caution:
 - Keep the drive in its static-shielded bag until you are ready to
   complete the installation. Do not attach any cables to the drive
   while it is in its static-shielded bag.

 - Before handling the drive, put on a grounded wrist strap, or ground
   yourself frequently by touching the metal chassis of a computer
   that is plugged into a grounded outlet. Wear a grounded wrist strap
   throughout the entire installation procedure.

 - Handle the drive by its edges or frame only.

 - The drive is extremely fragile_handle it with care. Do not press
   down on the drive top cover.

 - Always rest the drive on a padded, antistatic surface until you
   mount it in the computer.

 - Do not touch the connector pins or the printed circuit board.

 - Do not remove the factory-installed labels from the drive or cover
   them with additional labels. Removal voids the warranty. Some
   factory-installed labels contain information needed to service the
   drive. Other labels are used to seal out dirt and contamination.


 I/O cable and connector
 -----------------------
 The drive uses a 40-pin, male I/O connector with two rows of twenty
 pins each and a notch for keying. Pin 20 is removed for keying
 purposes. Pin 1 is located near the 4-pin power connector when the
 I/O connector is mounted.

 The table below lists recommended parts for the mating connector. You
 can use equivalent parts.

 Part       Description         3M part number
 Connector  40-pin              3M-3417-7000
 Connector  40-pin              3M-3448-2040
 Flat cable AWG28 (stranded)    3M-3365-40

 To ensure the integrity of your data, use a 40-connector, nonshielded
 I/O cable with a maximum length of 18 inches (46 centimeters).


 Power connector
 ---------------
 The drive uses a standard 4-pin, male power connector. We recommend
 the following part number or their equivalents for the mating
 connector.

 Part       Description         Part number
 Connector  Housing             AMP 1-480424-0
 Connector  Pin (loose piece)   AMP 60619-4
 Connector  Pin (reel)          AMP 6117-4
 Cable      18 AWG


 ATA Interface
 -------------
 The drives use an ATA-3 interface. The interface complies with ANSI
 ATA (AT Attachment) Interface X3T10 Rev. 6.0; SFF 8011: ATA Timing
 Extension for Local Bus Attachments, Rev. 2.0 and SFF 8019: Identify
 drives Data for drives Under 8 GB.

 The ATA interface consists of single-ended, TTL-compatible receivers
 and drivers that use an asynchronous interface protocol. The drivers
 can sink up to 24 mA and drive a load up to 300 pF. The integrity of
 the ATA interface is affected by the interface cable. It is designed
 to support a 40-conductor, nonshielded interface cable with a maximum
 length of 18 inches (46 centimeters).



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
SEAGATE  ST36450/451A  INSTALLATION GUIDE

 Introduction
 ------------
 This manual describes the functional, mechanical and interface
 specifications for the Medalist Pro 6450 and the Medalist Pro 6451
 hard disc drives. The drives are referred to throughout this manual
 by their model numbers, ST36450A for the Medalist Pro 6450 and
 ST36451A for the Medalist Pro 6451.

 Seagate desktop products take a step into the future with the
 ST36450A and ST36451A. These drives feature MR heads and PRML
 recording technology, Fast ATA-2 and Ultra ATA performance, segmented
 cache, embedded servo technology, low noise and power management
 The ST36450A and the ST36451A each contain five discs. These drives
 use MR heads and PRML technology that provide the drives with
 increased areal density. This means that more data can be stored on
 each disc.

 The ST36450A supports Fast ATA-2 technology and provides burst
 transfer rates of up to 16.6 Mbytes per second. The ST36451A supports
 Ultra ATA technology and provides burst-transfer rates of up to 33.3
 Mbytes per second. Both drives support PIO mode 4, multiword DMA mode
 2 transfer modes and multiple block read/write. The multiple block
 read/write feature allows the drives to store several blocks of data
 in cache and to transfer them in a single burst.

 These drives use a 512-Kbyte segmented cache. Segmenting the cache
 provides a designated area where blocks of contiguous read or write
 data can be staged for transfer in a single burst.

 The ST36450A and ST36451A drives have other features that ensure fast
 data throughput. Embedded servo technology allows the drives to
 position the heads for data retrieval efficiently and accurately
 while eliminating the periodic thermal recalibration that can
 interrupt during data transfers. These drives also use a 16-bit
 microprocessor and an intelligent controller that provides data
 streaming: direct data transfers between the drive and the host
 without microprocessor intervention. These features allow for a
 sustained data-transfer rate that facilitates video-playback and
 other multimedia operations.

 These drives support Active, Idle and Standby power-management modes.
 Power-saving modes can be controlled by the computer. Standby mode
 reduces power consumption to 2 watts (typical) while retaining drive
 accessibility.

 The following is a summary of the drives' features:
 Capacity
 - 6.4 Gbytes formatted

 - LBA translation support

 - Available software driver that surpasses the 528-Mbyte barrier and
   4,096 cylinder barrier limited by some system BIOSs

 - Available software driver that provides expanded 32-bit disk access
   support for Windows 3. x


 Performance
 -----------
 - Fast ATA-2 (ST36450A) burst transfer rates up to 16.6 MB-per-
   second

 - Ultra ATA (ST36451A) burst transfer rates up to 13.3MB-per-second

 - Supports DMA mode 2, PIO mode 4 and multiple block read/write.

 - 512-Kbyte segmented buffer

 - 12-msec average read seek time

 - 13.5-msec average write seek time

 - Data streaming


 Formatted capacity
 ------------------
 Medalist Pro drives are low-level formatted at the factory. You
 cannot low-level format them.

 These drives support cylinder-head-sector (CHS) and logical-block
 ad-dressing (LBA) translation modes. You can use the Identify drive
 (ECH) command to verify the address modes the drives support, the
 number of cylinders, sectors per track, total number of sectors,
 heads and other parameters.
 Notes!
 1. DOS cannot access more than 2.147 Gbytes per partition. You must
   create multiple partitions to access the drive's full capacity.
 2. One Mbyte equals one million bytes.
 3. If the system BIOS does not support more than 4,096 cylinders, it
    can cause the computer to hang during startup, or it can truncate
    or wrap the cylinders. To resolve this issue, the system BIOS
    needs to be modified: the cylinder register or variable must be
    increased from 12-bits to 16-bits to accommodate more than 4,096
    cylinders.


 Seek time
 ---------
 Seek value is the interval between the time the actuator begins to
 move and the time the head has settled over the target track. Seek
 time is a true statistical average of at least 10,000 measurements of
 seek time. All measurements are taken under nominal conditions of
 temperature and voltage with the drive mounted horizontally. The
 specifications in the table below are defined as follows:

 - Track-to-track seek time is the average of all possible single-
   track seeks in both directions.

 - Average seek time is measured by executing seeks in both directions
   between random cylinders.

 - Full-stroke seek time is half the time needed to seek from track 0
   to the maximum track and back to track 0.


 Start and stop times
 --------------------
 Within 20 seconds after power is applied, the drive is ready. Within
 15 seconds after power is removed, the drive spindle stops rotating.


 Power management
 ----------------
 The drive supports Active, Idle and Standby power-management modes.
 The table on page 11 shows the typical power consumption rates for
 each power-management mode. The test criteria for each mode is
 defined below. The Idle and Standby timers are disabled at the
 factory.

 All measurements were taken at the drive power connector. A true RMS
 meter is used to measure all modes except Standby. A DMM is used for
 Standby measurements.


 Active mode
 -----------
 During the Active mode, the drive is involved in spinup, seeking or
 read/write activities.

 - Spinup. The drive enters the Spinup mode from the Standby mode and
   brings the spindle and discs up to operating speed. Power in this
   mode is defined as the peak power after starting spinup.

 - Seek. The drive enters the Seek mode from the Idle mode. The
   read/write heads are moved to a specific location on the disc
   surface in preparation for reading from or writing to the disc.

 Read/write electronics are powered down but servo electronics are
 active. Typical power is defined as the power average of executing
 random seeks with a 2-revolution (22.2 msec) dwell between Seek
 commands.

 - Read/write. Read/write mode is entered from Idle mode. Read/write
   electronics are activated and the servo is on track. The drive
   reads from or writes to the disc.


 Idle mode
 ---------
 The Idle mode is entered 1 minute after the last disc I/O activity.
 The motor is up to speed and the actuator is repositioned once every
 minute. This mode uses an algorithm that minimizes head media
 interface stresses. The drive can enter Idle mode from either Active
 or Standby mode.


 Standby mode
 ------------
 The spindle is stopped, the heads are parked in the landing zone, the
 actuator is latched and some of the drive electronics are powered
 down.

 Note. When recovering from Standby or Sleep mode, you must allow the
 drive to post ready before reporting a timeout. The drive can take up
 to 20 seconds to post ready. In a master and slave configuration, the
 master can wait up to 31 seconds for the slave to complete
 diagnostics before posting ready.


 Sleep mode
 ----------
 The sleep mode implementation is the same as in Standby mode.


 Shock and vibration
 -------------------
 All shock and vibration specifications apply when the drive is
 mounted as recommended, with the input levels measured at the drive
 mounting screws. Shock measurements are based on an 11 msec, half
 sine wave shock pulse, not to be repeated more than twice per second.
 During normal operating shock and vibration, there is no physical
 damage to the drive or performance degradation. During nonoperating
 shock and vibration, the read/write heads are positioned in the
 landing zone.

 During abnormal operating shock and vibration, there is no physical
 damage to the drive, although performance may be degraded during the
 shock or vibration episode. When normal operating shock levels
 resume, the drive meets its performance specifications.



**********************************************************************
                      G   E   N   E   R   A   L
**********************************************************************
SEAGATE   ST36450/451A  INSTALLATION GUIDE


 Electromagnetic Compliance for the European Union
 -------------------------------------------------
 If this model has the CE Marking, it complies with the European Union
 requirements of the Electromagnetic Compatibility Directive
 89/336/EEC of 03 May 1989 as amended by Directive 92/31/EEC of 28
 April 1992 and Directive 93/68/EEC of 22 July 1993.

 Seagate uses an independent laboratory to confirm compliance to the
 above directives. The drive was tested in a representative system for
 typical applications. The selected system represents the most popular
 characteristics for test platforms. The system configurations
 include:

 - 486, Pentium, and PowerPC microprocessors

 - 3.5-inch floppy disc drives

 - Keyboard

 - Monitor/display

 Although the test system with this Seagate model complies to the
 directives, we cannot guarantee that all systems will comply. The
 computer manufacturer or system integrator shall confirm EMC
 compliance and provide CE Marking for their product. The drive is not
 meant for external use (without properly designed enclosure, shielded
 I/O cable, etc.) and that a terminator should be used on all unused
 I/O ports.


 FCC verification
 ----------------
 The Medalist Pro ATA interface drives are intended to be contained
 solely within a personal computer or similar enclosure (not attached
 to an external device). As such, a drive is considered to be a
 subassembly even when individually marketed to the customer. As a
 subassembly, no Federal Communications Commission authorization,
 verification or certification of the device is required.
 Seagate Technology, Inc. has tested these drives in an enclosure as
 described above to ensure that the total assembly (enclosure, disc
 drives, motherboard, power supply, etc.) does comply with the limits
 for a Class B computing device, pursuant to Subpart J of Part 15 of
 the FCC rules. Operation with noncertified assemblies is likely to
 result in interference to radio and television reception.

 Radio and television interference. This equipment generates and uses
 radio frequency energy and, if not installed and used in strict
 accordance with the manufacturer's instructions, may cause
 interference to radio and television reception.
 This equipment is designed to provide reasonable protection
 against such interference in a residential installation. However,
 there is no guarantee that interference will not occur in a
 particular installation. If this equipment does cause interference to
 radio or television, which can be determined by turning the equipment
 on and off, you are encouraged to try one or more of the following
 corrective measures:

 - Reorient the receiving antenna.

 - Move the device to one side or the other of the radio or TV.

 - Move the device farther away from the radio or TV.

 - Plug the equipment into a different outlet so that the receiver and
   computer are on different branch outlets.

 If necessary, you should consult your dealer or an experienced
 radio/television technician for additional suggestions. You may
 find helpful the following booklet prepared by the Federal
 Communications Commission: How to Identify and Resolve
 Radio-Television Interference Problems. This booklet is available
 from the Superintendent of Documents, US Government Printing
 Office, Washington, DC 20402. Refer to publication number
 004-000-00345-4.

 Note. This digital apparatus does not exceed the Class B limits for
 radio noise emissions from computer equipment as set out in the radio
 interference regulations of the Canadian Department of commu-
 nications.


