===================================================================
                    
               Maxtor's DiamondMax(TM) Plus 2500 Family
                3.5" EIDE Drives Model Number 91000D8

===================================================================

KEY FEATURES:

  * 7,200 RPM spindle speed         * 9.0 ms average seek
  * Magneto-Resistive Heads         * Shock Resistance to 200Gs
  * Exclusive Formula4(TM) HDA      * PRML Read Channel Technology
  * ATA power saving commands       * Areal Density: 1,680MB/disk
  * >500,000 Hour MTBF              * >50,000 Start/Stop Cycles
  * Three-Year Warranty             * S.M.A.R.T. Capability
  * ANSI ATA-4 Compliant PIO Mode 4 Interface Plus support 
    for Ultra DMA/ Mode 2 for up to 33MB/sec transfers
  * Zone Density and I.D.-less Recording
  * Auto park and Lock Actuator Mechanism
  * Advanced on-the-fly Error Correction Code logic, capable of 
    correcting multiple error bursts without performance loss
  * DSP-Based Electronics Architecture                    
  * Supports EPA Energy star "Green PC" standards
  * 512 KB SDRAM Cache with MaxCache Manager Algorithms 


SPECIFICATIONS:
      +---------+----------+-------+----------+--------------+
      | Model   | Capacity | Disks | Surfaces | Sectors per  |
      | Number  |    *     |       | & Heads  | Drive        |
      +---------+----------+-------+----------+--------------+
      | 91000D8 | 10.00 GB |   4   |    8     |  19,545,120  |
      +---------+----------+-------+----------+--------------+


BIOS (CMOS) CONFIGURATION:     
 +---------+-----------+-------+------+---------+----------+------------+
 | Model   | Cylinders | Heads | ~ LZ | Sectors | Capacity |  Max LBA   |
 | Number  |           |       | & WP |         |    *     |            |
 +---------+-----------+-------+------+---------+----------+------------+
 | 91000D8 |  19,390   |  16   |  0   |   63    | 10.00 GB | 19,545,120 |
 +---------+-----------+-------+------+---------+----------+------------+

 ~ The fields LZ (Landing Zone) and WP (Write Pre-compensation) are not 
 used by Maxtor drives and the values may be either 0 or the values set 
 by the BIOS. 
   
 * Maxtor defines One Megabyte (MB) as 10^6 or One Million Bytes (1,000,000)
   and One Gigabyte (GB) as 10^9 or One Billion Bytes (1,000,000,000).


JUMPER DESIGNATION 
                                        |J50|J48|J46|J44|J42|
  +-------------------------------------+---+---+---+---+---+
  | Master/Slave                        |   |   |   |   |   |
  |  Only Drive in single drive system* | J |   |   |   |   |
  |  Master in a dual drive system*     | J |   |   |   |   |
  |  Slave in a dual drive system       | 0 |   |   |   |   |
  +-------------------------------------+---+---+---+---+---+
  | Cable Select                        |   |   |   |   |   |
  |  Disabled*                          |   | O |   |   |   |
  |  Enabled                            |   | J |   |   |   |
  +-------------------------------------+---+---+---+---+---+
  |  4092 Cylinder Limitation           |   |   |   |   |   |
  |  Disabled*                          |   |   | O |   |   |
  |  Enabled                            |   |   | J |   |   |
  +-------------------------------------+---+---+---+---+---+
  | Factory Reserved                    |   |   |   | O |   |
  +-------------------------------------+---+---+---+---+---+
  | Factory Reserved                    |   |   |   |   | O |
  +-------------------------------------+---+---+---+---+---+
    J=Jumpered O=Open *=Default 


                     Pin 1
     J1 IDE Connector  |                J2 Power
   ___________ ________|_________________________
  | .................... || @ * *   o |/         \
  | .......... ......... || @ o o o o || O O O O |
  |______________________||___________||_________|
                            | | | | |    | | | |
                            | | | | |    | | | |
      J50 Master/Slave -----' | | | |    | | | `-+12V
      J48 Cable Select -------' | | |    | | `---+12V Return
      J46 4092 Cyl Limitation---' | |    | `----- +5V Return
      J44 Factory Reserved -------' |    `------- +5V 
      J42 Factory Reserved ---------'

        @ = Default Jumped Positions
        * = "Spare" Jumper Position
        o = Default Open   Positions

=======================================================================

PERFORMANCE:
Seek performance (including settling time and servo overhead)

Seek times (Typical):
     Track to track: .......................  <1.0 ms
     Average: ..............................   9.0 ms
     Maximum: .............................. <20.0 ms

Average Latency: ...........................   4.17 ms
Rotational Speed (+-0.1%): ................. 7,200 RPM
Controller Overhead: .......................  <0.5 ms
Start Time (0 - Drive Ready) ...............  <11.0 sec Typical

DATA TRANSFER RATE:
  To/from Interface: ....................... Up to 33.0 MBs
  To/From Media: ........................... Up to 21.9 MBs
                                                    
DRIVE CONFIGURATION:
Integrated Controller/Interface: ........... ATA-4 / EIDE
Encoding Method: ........................... EPR4 RLL 16/17
Interleave: ................................ 1:1
Servo System: .............................. Embedded
Data Sectors per Track: .................... 174-288
Tracks Per surface (cylinders): ............ 10,022
Aerial Density: ............................ 1,680 MB/in^2
Flux Density: .............................. 148-190 kfci 
Track Density: ............................. 9,800 tpi  
Recording Density: ......................... 139-179 kbpi 
Data Zones per Surface: .................... 16
Bytes per block: ........................... 512
Buffer Size: ............................... 512 KB
Buffer Type: ............................... SDRAM


POWER REQUIREMENTS (Average)

    Mode         +12VDC +-5%  +5VDC +-5%  Power
    ----         -----------  ----------  -----
    Spin-up       2400 mA       200 mA                      
    Seek           710 mA       330 mA    10.2 W
    Read/Write     345 mA       350 mA     5.9 W
    Idle           390 mA       225 mA     5.8 W
    Standby          7 mA       245 mA     1.3 W
    Sleep            7 mA       140 mA     0.8 W

POWER MODE DEFINITIONS:
-----------------------

Idle	    The drive is spinning., the actuator is parked and powered
	    off, and all other circuitry is powered on. The drive is 
	    capable of responding to read commands within 40 ms.

Read/Write  Data is being read from or written to the drive.

Spin-up	    The drive is spinning up following initial application 
	    of power and has yet not reached full speed. Maximum
	    current draw lasts one second.

Standby	    The spin motor is not spinning. The drive will leave this
	    mode upon receipt of a command that requires disk access.
	    The time-out value for this mode is programmable. The
	    buffer is active to accept write data.

Sleep       This is the lowest power state - with the interface set to 
            inactive. A software or hardware reset is required to return
            the drive to the standby state.


PHYSICAL:

    Height:  1.02 in     25.9 mm
    Length:  5.77 in    146.6 mm
    Width:   4.02 in    102.1 mm
    Weight:  1.30 lb.     0.59 kg


RELIABILITY & MAINTENANCE:

    MTBF: .................................. >500,000 Hours
    AFR: ................................... <1.7%
    Quality Acceptance Rate: ............... TBD (<1,500 DPPM)
    Component design life: ................. 5 years (minimum)
    Data Errors (non-recoverable): ......... <1 per 10^14 bits read
    Start/Stop Cycles: ..................... 50,000 (minimum)

ENVIRONMENTAL:

Temperature
    Operating (stabilized).................. 5 C to 55 C                                           
    Non-operating/Storage .................. -40 C to 71 C

Relative Humidity (Non-Condensing)
    Operating, Non-operating/Storage ....... 5% to 95% 
    Wet Bulb ............................... 27 C Maximum

Altitude (relative to sea level)
    Operating .............................. -200 to 10,000 feet
    Non-operating .......................... -200 to 40,000 feet
    
Shock & Vibration (typical)
    Operating Mechanical Shock .............  20 Gs, 2ms (no errors)
    Non-Operating Mechanical Shock ......... 200 Gs, 2ms (no damage)
    
    Operating Vibration, Random (no errors)
      10Hz ................................. 0.0125   G^2/Hz
      40Hz ................................. 0.0125   G^2/Hz
     500Hz ................................. 0.000125 G^2/hz

      Non-operating Random Vibration (60 Minutes/Axis no damage)
      10Hz ................................. 0.015   G^2/Hz
      40Hz ................................. 0.015   G^2/Hz
     500Hz ................................. 0.00015 G^2/Hz

    Operating Swept Sine Vibration (1 octave/minute)
      5-20 Hz .............................. 0.049" double amplitude
      21-300 Hz ............................ 1.0 G peak amplitude

Acoustic Noise:
    Idle mode: ............................. 37 dBA (average) 



               DiamondMax, DiamondMax Plus, Formula4 HDA, 91000D8, 
            90910D8, 90875D7, 90840D7, 90750D6, 90625D5 and 90500D4
                   are Trademarks of Maxtor Corporation
              Specifications subject to change without notice
                    Copyright 1998 Maxtor Corporation
                    Rev A      6/18/98    G. Anderson
