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                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1995


ST-3630A (Medalist 630xe AT)

                                 TOP               4-pin DC
                                                   Power
                           ÕĶĶĶĶĶĶĶĶĶĶ ĶĶĶĶĶĶĶĶĶø/Ä4Ä3Ä2Ä1Ä\
                 ĶĶĶĶĶĶĶĶĶĶµ::::::::::ł::::::::1Ę³ 0 0 0 0 ĘĶ
                           ŌĶĶĶĶĶĶĶĶĶĶŃĶĶĶĶĶĶĶĶĶ¾ĄÄ5ÄGÄGÄ12Ł
                              (pin-20 missing
                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)
       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1
       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0
                                  ŚÄÄÄ - - -  o-o                   ³  ³  ³
       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄŁ ŚÄ Ä Ä Ä 2o-o1                  S  M  S
       Slave Present ON for ÄÄÄÄÄÄÄÄŁ            (front of drive)   i  a  l
        drives that don't have                                      n  s  a
        the -DASP signal (use                                       g  t  v
        only ONE of the Slave                                       l  e  e
        Present choices)                                            e  r
       Spare jumper stored on pins 1-3


                             ST-3630A
                             Medalist 630xe

       FORMATTED CAPACITY _______________________631.1
       ACTUATOR TYPE ____________________________VOICE COIL
       CYLINDERS __PHYSICAL______________________
       HEADS ______PHYSICAL______________________4
       DISCS (3.5 in) ___________________________2
       MEDIA TYPE _______________________________THIN FILM
       HEAD TYPE ________________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (Mbits/sec) _______22.9 to 39.6
       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1
       PIO MODE _________________________________3
       DMA SUPPORT ______________________________EISA Type B
       SPINDLE SPEED (RPM) ______________________3,811
       AVERAGE LATENCY (mSEC) ___________________7.87
       BUFFER ___________________________________120 Kbyte
        Read/Write Multiple, Read Look-Ahead,
        Multi-Segmented
       INTERFACE ________________________________ATA
       SECTORS PER DRIVE (LBA mode) _____________1,232,784
       TPI (TRACKS PER INCH) ____________________3,384
       BPI (KBITS PER INCH) _____________________68
       AVERAGE ACCESS (ms) ______________________14
       SINGLE TRACK SEEK (ms) ___________________5
       MAX FULL SEEK (ms) _______________________34
       MTBF (power-on hours) Office _____________300,000
       SHOCK (G's):
                operating (Read/Write) __________2
                abnormal ________________________10
                nonoperating ____________________75
       ACOUSTICS (dBA) (typ/max) ________________29/33
       POWER DISSIPATION (watts) ________________
       POWER REQUIREMENTS: +12V START-UP (amps) _1.2
       POWER MANAGEMENT (Watts):
                           ACTIVE _______________5.23
                           IDLE _________________1.86
                           STANDBY ______________0.725
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO
       IBM AT DRIVE TYPE ________________________*

       Physical:
                        Height (inches/mm):  1.02/25.4
                        Width  (inches/mm):  4.02/102.1
                        Depth  (inches/mm):  5.78/146.6
                        Weight    (lbs/kg):   1.3/0.59


 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO
SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE
AVAILABLE. (see below)

Possible translations:
                       This translation is generally acceptable, as
                       is, for non-DOS operating systems:
       1223 cyl, 16 heads, 63 sectors = 631,185,408

                       DOS operating systems may require a system bios
                       that accepts larger values for the CMOS head
                       parameter which lowers cylinders below 1024:
        611 cyl, 32 heads, 63 sectors = 630,669,312

                       Other FULL-CAPACITY solutions for DOS operating
                       systems include third-party drive preparation
                       software, system BIOS which supports LBA mode
                       or bios driven host adapters. Otherwise,
                       capacity may be limited to:
       1024 cyl, 16 heads, 63 sectors = 528,482,304


Note: A "custom" or "user-defined" CMOS drivetype  may ask for a
numerical value for the Write Precompensation cylinder and for the
Landing Zone cylinder.  A basic rule-of-thumb for drive models that do
not require the old Write Precomp technique or a Landing Zone because
they are Auto-Parking is to add 1 to the cylinder value being used. As
an example: If cylinders equaled 820, then both Write Precomp and
Landing Zone would be entered as 821. Some BIOS will convert this to
65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it
is imperative that the values be written down and kept with your
permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product 
offerings or specifications. (03/13/96)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/at/st3630a.txt.