Seagate ST9550AG HARD DISK DRIVE REPAIR, Seagate ST9550AG HARD DISK DRIVE SPECIFICATIONS,
Seagate ST9550AG hard disk drive sales, Seagate ST9550AG hard disk drive repair, Seagate ST9550AG hard disk drive specifications, 
Seagate ST9550AG Hard Disk Drive Repair, Seagate ST9550AG Hard Disk Drive Specifications, Seagate ST9550AG Seagate ST9550AG
Specifications



seagate st9550ag picture.
seagate st9550ag picture.
seagate st9550ag picture.

Seagate ST9550AG Specifications
Model Capacity Size Height Bus Type Int.Type
ST9550AG 455MB 2.5" SSL ATA2 Fast

Marathon 455   :    ST9550AG

Marathon 455

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

455.0 MB
4000 rpm
16 ms
942
16
59



ST-9550AG (Marathon 455)

                            TOP       �� 44-pin I/O Connector (* see below)
                                      �                     o o
                                    ::::::::::::�::::::::1  o o
                               �P�W�A������������������������������
                                                �           � �
       pin-20 removed for keying ����������������           � �
                                                            � �
                                                            � �
 Drive is Master, no Slave drive present ������������������ 0 0
 Drive is Master, Seagate Slave drive present ������������� 1 0
 Drive is Slave to another Seagate 2.5" Master ������������ 0 1
 Reserved Position (Do Not Use) ��������������������������� 1 1

 * Drive uses +5vdc power supplied to the drive
   via the interface connector. The drive does
   NOT make use of a +12vdc power line.
   pin-41  +5vdc (Logic)
   pin-42  +5vdc (Motor)
   pin-43  Ground
   pin-44  Reserved


                             ST-9550AG
                             Marathon 455


       UNFORMATTED CAPACITY _____________________
       FORMATTED CAPACITY (xx SECTORS) __________455
       AVERAGE SECTORS PER TRACK ________________ rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________
       CYLINDERS ________________________________(user)
       HEADS ____________________________________8
       DISCS (2.5 in) ___________________________4
       MEDIA TYPE _______________________________THIN FILM
       HEAD TYPE ________________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec) _______16.2 to 27.7
       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3
       SPINDLE SPEED (RPM) ______________________3,980
       AVERAGE LATENCY (mSEC) ___________________7.54
       BUFFER ___________________________________120 Kbyte
        Multisegmented cache
       INTERFACE ________________________________AT
       SECTORS PER DRIVE ________________________889,248
       TPI (TRACKS PER INCH) ____________________3,282
       BPI (BITS PER INCH) ______________________59,124
       FCI (FLUX DENSITY) _______________________44,360
       AVERAGE ACCESS (ms) ______________________16
       SINGLE TRACK SEEK (ms) ___________________5
       MAX FULL SEEK (ms) _______________________27
       MTBF (power-on hours) Office _____________300,000
       ACOUSTICS (typ/max dBA) __________________30/33
       SHOCK (G's):
                   operating/nonoperating _______100/200
                   SafeRite shock sensor
       POWER REQUIREMENTS: +5V START-UP (amps) __1.2
       POWER MANAGEMENT (Watts):
                           ACTIVE _______________1.85
                           IDLE _________________0.9
                           STANDBY ______________0.3
                           SLEEP ________________0.25
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO
       IBM AT DRIVE TYPE ________________________*

       Physical:
                        Height (inches/mm):     0.75/19.05
                        Width  (inches/mm):     2.76/70.10
                        Depth  (inches/mm):     4.01/101.85
                        Weight    (ozs/kg):     7.4/0.21


 * 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:   942 cyl, 16 heads, 59 sectors = 455,294,976

Note: A "custom" or "user-defined" CMOS drive type  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. (08/17/94)

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