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Medalist 540

Capacity:
Speed:
Average Seek Time:
 Cylinders:
Heads:
Sectors:

528.4 MB
4500 rpm
12 ms
1024
16
63


Installation Guide | Product Manual

 

Odd characters? Click here for help. A version of this specification with the linedraw characters approximated by text is available by clicking here.

                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1993


ST-3655A (Medalist 540)
Rear View

          Mini Power    40 pin AT Interface I/O connector
           Connector   
       2    Ŀ        (TOP)             DC power
      o o 5   G   ͸ /5GG12\
     ͵o oƵ0 0 0͵::::::::::::::::::1͵ 0 0 0 0      ...Ŀ
       1     12   ͳ;           
                 (BOTTOM)   (pin 20 missing for    (Factory test jumper
                              keying purposes)        block located at side)
        
     OFF OFF  Drive is Master (single)
     OFF ON   Drive is Master with Slave present (dual)
     ON  OFF  Drive is Slave (dual)
     ON  ON   Cable Select (requires jumper also on pins 6 and 8 of J8)
     Spare jumper may be stored on pins 1 and 3.


ST-3655A
Front View               Cable Select (pins 6 and 8)
                          Spindle Clock to I/O pin-28 (pins 8 and 10)
                           Ext. Spindle Clock Synch
               J8       6-8           (see note below)
     (TOP)          o o o o-o o o+
                o  o o o o o-
     (BOTTOM)      1   
                              Remote LED
                             Reserved
                            Clock Ground for Ext. SPSYNC
                                  Reserved
                        Ĵ Reserved
                                   Reserved pin-3 removed for key
                                   Reserved

 Spindle Sync note: Enable pin-28 (SPSYNC-) of the AT interface connector
                    by installing a jumper on pins 8 and 10 of the options
                    jumper block.
                    Connect a twisted pair to pins 9 and 10 of the options
                    jumper block to transmit and receive SPSYNC-.



                             ST-3655A
                             Medalist 540

       UNFORMATTED CAPACITY _____________________
       FORMATTED CAPACITY (xx SECTORS) __________528.4
       ACTUATOR TYPE ____________________________VOICE COIL
       CYLINDERS __PHYSICAL/LOGICAL______________
       HEADS ______PHYSICAL/LOGICAL______________5
       DISCS (3.5 in) ___________________________3
       MEDIA TYPE _______________________________THIN FILM
       HEAD TYPE ________________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec) _______21.79 to 36.56
       DMA SUPPORT ______________________________EISA Type B
       SPINDLE SPEED (RPM) ______________________4,500
       AVERAGE LATENCY (mSEC) ___________________6.67
       BUFFER ___________________________________256 Kbyte SeaCache
        Read/Write Multiple, Read Look-Ahead,
        Multi-Segmented
       INTERFACE ________________________________AT
       SECTORS PER DRIVE ________________________1,032,192
       BYTES PER CYLINDER _______________________
       TPI (TRACKS PER INCH) ____________________3,000
       BPI (BITS PER INCH) ______________________53,192
       AVERAGE ACCESS (ms) ______________________12
       SINGLE TRACK SEEK (ms) ___________________<4
       MAX FULL SEEK (ms) _______________________32
       MTBF (power-on hours) Office _____________250,000
       POWER DISSIPATION (watts) ________________
       POWER REQUIREMENTS: +12V START-UP (amps) _1.9
       POWER MANAGEMENT (Watts):
                           ACTIVE _______________4.9
                           IDLE _________________2.5
                           STANDBY ______________0.3
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO
       IBM AT DRIVE TYPE ________________________*

       Physical:
                        Height (inches/mm):     1.00/25.4
                        Width  (inches/mm):     4.02/102.1
                        Depth  (inches/mm):     5.77/146.6
                        Weight    (lbs/kg):     1.5/0.68


 * 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 translation:  1024 cyl, 16 heads, 63 sectors = 528,428,304

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. (08/09/94)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/at/st3655a.txt.


 



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