{"id":6575,"date":"2025-07-16T15:30:44","date_gmt":"2025-07-16T22:30:44","guid":{"rendered":"https:\/\/universaldatasystems.org\/shop\/?post_type=product&p=6575"},"modified":"2025-07-16T15:39:28","modified_gmt":"2025-07-16T22:39:28","slug":"maxtor-72004a-2gb-4480rpm-ata","status":"publish","type":"product","link":"https:\/\/universaldatasystems.org\/shop\/product\/maxtor-72004a-2gb-4480rpm-ata\/","title":{"rendered":"Maxtor 7000 Series 72004A 2GB 4480RPM ATA 3.5″"},"content":{"rendered":"

This is a used Hard Drive Maxtor 7000 Series 72004A from a working system. It is in good working condition.<\/strong><\/span><\/p>\n

\n

Hard Drive: MAXTOR: 72004A (11\/03\/96) 2004MB 3.5″\/SL ATA2 FAST<\/h1>\n
\n
\n
<\/div>\n<\/div>\n
MAXTOR\r\n                                                      Native|  Translation\r\n                                                      ------+-----+-----+-----\r\nForm                 3.5\"\/SLIMLINE         Cylinders    4702| 3893|     |\r\nCapacity form\/unform  2004\/      MB        Heads           6|   16|     |\r\nSeek time   \/ track  12.0\/ 2.0 ms          Sector\/track     |   63|     |\r\nController           IDE \/ ATA2 FAST\/ENHA  Precompensation\r\nCache\/Buffer            64 KB SEGMENTED    Landing Zone\r\nData transfer rate          MB\/S int       Bytes\/Sector      512\r\n                     16.600 MB\/S ext PIO4\r\nRecording method     RLL 1\/7                        operating  | non-operating\r\n                                                  -------------+--------------\r\nSupply voltage     5\/12 V       Temperature *C         5 55    |    -40 71\r\nPower: sleep          1.0 W     Humidity     %         5 95    |      5 95\r\n       standby        1.3 W     Altitude    km    -0.061  3.048|\r\n       idle           4.4 W     Shock        g        34       |    100\r\n       seek           7.0 W     Rotation   RPM      4480\r\n       read\/write     5.0 W     Acoustic   dBA        38\r\n       spin-up        9.7 W     ECC        Bit   ON THE FLY\r\n                                MTBF         h     300000\r\n                                Warranty Month\r\nLift\/Lock\/Park     YES          Certificates     CE,CSA,EPA GREEN PC,FCC,TU...\r\n\r\n<\/pre>\n
Layout<\/h2>\n
MAXTOR 72004\/71670\/71336\/7668-A\/AP REFERENCE MANUAL #1333 REV.C ’96<\/p>\n
  +---------------------------------------------------------+\r\n  |                                          J20*****J24    |\r\n  |         COMPONENT SIDE                      *****       |XXI\r\n  |                                                         |XXN\r\n  |                                                         |XXT\r\n  |                                                         |XXE\r\n  |                                                         |XXR\r\n  |                                                         |XXF J1\r\n  |                                                         |XXA\r\n  |                                                         |XXC\r\n  |                                                         |XXE\r\n  |                                                         |XX\r\n  |                                                         |XX\r\n  |                                                         |XX\r\n  |                                                         |  1\r\n  |                                                         1XX Power\r\n  |                                                         |XX J2\r\n  +---------------------------------------------------------+\r\n\r\n<\/pre>\n
Jumpers<\/h2>\n
MAXTOR 72004\/71670\/71336\/7668-A\/AP REFERENCE MANUAL #1333 REV.C ’96<\/p>\n
Jumper Setting
\n==============<\/p>\n
 Jumper Designation\r\n ------------------\r\n     +---------------- J20 Master\/Slave\r\n     |  +------------- J21 FACTORY RESERVED!\r\n     |  |  +---------- J22 FACTORY RESERVED!\r\n     *  *  *  *  *\r\n     *  *  *  *  *\r\n              |  |\r\n              |  +---- J24 Cable Select\r\n              +------- J23 Write Cache\r\n\r\n<\/pre>\n
 J20 Master\/Slave\r\n ----------------\r\n J20 CLOSED  Only drive in single drive system (default)\r\n     CLOSED  Master drive in dual drive system\r\n     OPEN    Slave drive in dual drive system\r\n\r\n<\/pre>\n
 J23 Write Cache\r\n ---------------\r\n J23 OPEN   Write Cache enabled (default)\r\n     CLOSED Write Cache disabled\r\n\r\n<\/pre>\n
 J24 Cable Select\r\n ----------------\r\n J24 OPEN   Cable Select disable (default)\r\n     CLOSED Cable Select enabled\r\n\r\n<\/pre>\n
NOTE
\nJumpers J21 and J22 are factory reserved.<\/p>\n
A spare shunt is shipped between J23 and J24.<\/p>\n
 DC Power connector\r\n ------------------\r\n  pin 1    +12 VDC\r\n  pin 2    +12 Volts Return\r\n  pin 3    + 5 Volts Return\r\n  pin 4    + 5 VDC\r\n\r\n<\/pre>\n
Install<\/h2>\n
MAXTOR 72004\/71670\/71336\/7668-A\/AP REFERENCE MANUAL #1333 REV.C ’96<\/p>\n
Notes of Installation
\n=====================<\/p>\n
Installation direction
\n———————-<\/p>\n
     horizontally                           vertically\r\n   +-----------------+             +--+                       +--+\r\n   |                 |             |  +-----+           +-----+  |\r\n   |                 |             |  |     |           |     |  |\r\n +-+-----------------+-+           |  |     |           |     |  |\r\n +---------------------+           |  |     |           |     |  |\r\n                                   |  |     |           |     |  |\r\n                                   |  |     |           |     |  |\r\n +---------------------+           |  +-----+           +-----+  |\r\n +-+-----------------+-+           +--+                       +--+\r\n   |                 |\r\n   |                 |\r\n   +-----------------+\r\n\r\n<\/pre>\n
The drive will operate in all axis (6 directions).<\/p>\n
Recommended Mounting Configuration
\n———————————-
\nMaxtor 7000 Series drive design allows greater shock tolerance than
\nthat afforded by larger, heavier drives. The drive may be mounted in
\nany attitude using four size 6-32 screws with 1\/8″ maximum
\npenetration and a maximum torque of 5-inch pounds.<\/p>\n
Allow adequate ventilation to the drive to ensure reliable drive
\noperation.<\/p>\n
Air Filtration System
\n———————
\nAll 7000 Series drives are designed to operate in a typical
\noffice environment with minimal environmental control. Over the life
\nof the drive, a 0.3 micron filter and breather filter (located within
\nthe HDA) maintain a clean environment to the heads and disks.<\/p>\n
Read\/Write Electronics
\n———————-
\nAn integrated circuit mounted within the sealed enclosure (near the
\nread\/write heads) provides one of four head selection (depending on
\nthe model), read preamplification, and write drive circuitry.<\/p>\n
Read\/Write Heads and Disks
\n————————–
\nLow mass, low force read\/write heads record data on two 3.5″
\ndiameter disks. Maxtor uses a sputtered thin film medium on all
\ndisks for 7000 Series drives.<\/p>\n
Drive Mechanism
\n—————
\nA brushless DC direct-drive motor rotates the spindle at 4,480 RPM
\n( 0.1%). The dynamically balanced motor\/spindle assembly ensures
\nminimal mechanical runout to the disks. A dynamic brake provides a
\nfast stop to the spindle motor upon power removal. The speed
\ntolerance includes motor performance and motor circuit tolerances.<\/p>\n
Voice Coil Actuator
\n——————-
\nAll 7000 Series drives employ a rotary voice coil actuator which
\nconsists of a moving coil, an E-block or actuator arm assembly, and
\nstationary magnets. The actuator moves on a low-mass, low-friction
\ncenter shaft. The low friction generated contributes to fast average
\naccess time and low power consumption.<\/p>\n
Automatic Headpark and Lock Operation
\n————————————-
\nImmediately following power-down, dynamic braking of the spinning
\ndisks delays momentarily and lets the heads move to an inner
\nmechanical stop. A small fixed magnet holds the heads in place as the
\ndisk spin down. The heads are released only when power is again
\napplied.<\/p>\n
Dual Drive Support
\n——————
\nTwo drives may be accessed via a common interface cable, using the
\nsame range of I\/O addresses. The drives are jumpered as drive 0 or 1,
\nand are selected by the drive select bit in the Drive\/Head register
\nof the task file.<\/p>\n
All Task File registers are written in parallel to both drives. The
\ninterface processor on each drive decides whether a command written
\nto it should be executed; this depends on the type of command and
\nwhich drive is selected. Only the drive selected executes the command
\nand activates the data bus in response to host I\/O reads; the drive
\nnot selected remains inactive.<\/p>\n
A master\/slave relationship exists between the two drives: drive 0 is
\nthe master, and drive 1, the slave. When J20 is closed (factory
\ndefault), the drive assumes the role of master; when open, the drive
\nacts as a slave. In single drive configurations, J20 must be closed.<\/p>\n
Cable Select
\n————
\nCSEL (cable select) is an optional feature per ATA CAM specification.
\nDrives configured in a multiple drive system are identified by CSEL’s
\nvalue:<\/p>\n
– If CSEL is grounded, then the drive address is 0.
\n– If CSEL is open, then the drive address is 1.<\/p>\n
NOTE
\nIf the Cable Select jumper (J24) is installed, the Master\/Slave
\njumper (J20) will be ignored.<\/p>\n
Sector Address Translation
\n————————–
\nAll 7000 Series drives feature a Universal Translate Mode. In an
\nAT-class system, the drive may be configured to any specified
\ncombination of cylinders, heads, and sectors (within the range of the
\ndrive’s formatted capacity).<\/p>\n
These drives powers-up in the Translate Mode:<\/p>\n
Model Cylinders Heads Sectors
\n72004A\/AP 3,893 16 63
\n71670A\/AP 3,244 16 63
\n71336A\/AP 2,595 16 63
\n7668A\/AP 1,297 16 63<\/p>\n
Interface Connector
\n——————-
\nAll 7000 Series AT drives have a 40-pin interface connector mounted
\non the PCBA. The drive may connect directly to the host; or it can
\nalso accommodate a cable connection (maximum cable length: 18
\ninches).<\/p>\n
(Striped Edge = Pin 1)<\/p>\n
Buffer Segmentation
\n——————-
\nThe data buffer is organized into three segments: the read buffer,
\nthe write buffer, and an micro controller scratch pad. The read
\nsegment occupies half of the buffer and operates as a circular read-
\nahead buffer. The write segment occupies the other half. During write
\noperations, it contains the host write data. Commands ATA Read Buffer
\n(E4) and ATA Write Buffer (E8) are implemented per CAM specification
\n4a.<\/p>\n
Read-Ahead Mode
\n—————
\nNormally, this mode is active. Following a read request, disk read-
\nahead begins on the first sector and continues sequentially until the
\nbuffer is full. If a read request is received during the read-ahead
\noperation, the buffer is examined to determine if the request is in
\nthe cache. If a cache hit occurs, read-ahead mode continues without
\ninterruption and the host transfer begins immediately.<\/p>\n
Features<\/h2>\n
MAXTOR 72004\/71670\/71336\/7668-A\/AP REFERENCE MANUAL #1333 REV.C ’96<\/p>\n
Introduction
\n————
\nMaxtor 7000 Series AT disk drives are 1″ high, 3.5″ random access
\nstorage devices which incorporate an on-board AT controller. Maxtor
\nengineers have applied recent advances in hard drive technology to
\nthe design and manufacture of these drives. High data transfer rates
\nand fast access times make them especially well-suited to desktop and
\nworkstation applications.<\/p>\n
Defect Management Zone (DMZ)
\n—————————-
\nEach drive model has a fixed number of spare sectors per DMZ:
\n72004A\/AP = 6,
\n71670A\/AP = 5,
\n71336A\/AP = 4 and
\n7668A\/AP = 2
\nall of which are located at the end of each DMZ. Upon detection of a
\nbad sector that has been reassigned, the next sequential sector is
\nused.<\/p>\n
The first spare sector makes up for the loss of sector 3, and so
\nmaintains the sequential order of data, with 3 spare sectors still
\nallocated for that cylinder. This push down method assures maximum
\nperformance.<\/p>\n
In the rare occurrence that the number of reassigned bad sectors
\nexceed the number of spare sectors allocated for that cylinder, an
\nalternate track area of the disk is used. All models have five (5)
\nalternate tracks per surface.<\/p>\n
Error Correction Code
\n———————
\nOn-the-fly Hardware ECC
\n———————–
\n41 bits, single burst, guaranteed
\n17 bits, double burst, guaranteed<\/p>\n
Software ECC Correction
\n———————–
\n113 bits, single burst, guaranteed
\n17 bits, five burst, guaranteed<\/p>\n
Zone Density Recording
\n———————-
\nThe disk capacity is increased with bit density management – common
\nwith Zone Density Recording. Each disk surface is divided into 10
\ncircumferential zones. All tracks within a given zone contain a
\nconstant number of data sectors. The number of data sectors per track
\nvaries in different zones; the outermost zone contains the largest
\nnumber of data sectors, and the innermost contains the fewest.<\/p>\n
Execute Drive Diagnostics
\n————————-
\nCommands the drive to implements the internal diagnostics tests.
\n(These tests are executed only upon command receipt; they do not run
\nautomatically at power up or after a reset.)<\/p>\n
The drive sets BSY immediately upon receiving this command.<\/p>\n
This table presents the codes and their descriptions:<\/p>\n
Note that the value in the Error register should be viewed as a
\nunique 8 bit Code.<\/p>\n
  +-----------+----------------------------------+\r\n  |Error Code | Description                      |\r\n  +-----------+----------------------------------+\r\n  |    01     | no error detected                |\r\n  +-----------+----------------------------------+\r\n  |    02     | formatter device error           |\r\n  +-----------+----------------------------------+\r\n  |    03     | sector buffer error              |\r\n  +-----------+----------------------------------+\r\n  |    04     | ECC circuitry error              |\r\n  +-----------+----------------------------------+\r\n  |    05     | controller microprocessor error  |\r\n  +-----------+----------------------------------+\r\n  |    8x     | slave drive failed (Note)        |\r\n  +-----------+----------------------------------+\r\n                Note: If a slave drive fails diagnostics, the master\r\n                drive OR's 80 hex with its own status, and loads that\r\n                code into the Error register.\r\n\r\n<\/pre>\n
                If a slave drive passes diagnostics (or a slave is\r\n                absent), the master drive OR's 00 with its own status\r\n                and loads that code into the Error register.\r\n\r\n<\/pre>\n
EISA Type “B” and Type “F” DMA Modes
\n————————————
\nDirect Memory Access (DMA) transfers improves system performance by
\nsignificantly improving troughtput.<\/p>\n
Physical Configuration Sectors per track
\n—————————————-
\nZone 1 = 162 Zone 2 = 156 Zone 3 = 150
\nZone 4 = 140 Zone 5 = 132 Zone 6 = 126
\nZone 7 = 120 Zone 8 = 108 Zone 9 = 100
\nZone 10 = 94<\/p>\n
Data transfer rate (MBytes per second)
\n————————————–
\nTo from media<\/p>\n
Zone 01 = 8.10 Zone 06 = 6.31
\nZone 02 = 7.79 Zone 07 = 5.86
\nZone 03 = 7.46 Zone 08 = 5.41
\nZone 04 = 6.99 Zone 09 = 5.00
\nZone 05 = 6.61 Zone 10 = 4.74<\/p>\n
Logical Block Addressing
\n————————
\nThe Logical Block Address (LBA) mode can only be utilized into
\nsystems that support this form of translation. The cylinder, head and
\nsector geometry of the drive, as presented to the host, differs from
\nactual physical geometry.<\/p>\n
The host AT computer may access a drive of set parameters: number of
\ncylinders, heads, and sectors per track, plus cylinder, head and
\nsector addresses. However, the drive can’t use these host parameters
\ndirectly because of zoned recording techniques. The drive translates
\nthe host parameters to a set of logical internal addresses for data
\naccess.<\/p>\n
The host drive geometry parameters are mapped into an LBA based on
\nthis formula:<\/p>\n
 LBA    = (HSCA-1)+HHDAxHSPT+HNHDxHSPTxHCYA  (1)\r\n        = (HSCA-1)+HSPTx(HHDA+HNHDxHCYA)     (2)\r\n\r\n<\/pre>\n
 where  HSCA = Host Sector Address, HHDA = Host Head Address\r\n        HCYA = Host Cylinder Address, HNHD = Host Number of Heads\r\n        HSPT = Host Sectors per Track\r\n\r\n<\/pre>\n
The LBA is checked for violating the drive capacity. If it does not,
\nthe LBA is converted to physical drive cylinder, head and sector
\nvalues. The physical address is then used to access the data stored
\non the disk and other drive related operations.<\/p>\n
S.M.A.R.T. Command Set
\n————————
\nThe Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
\ncommand has been implemented to improve the data integrity and data
\navailability of hard disk drives. In some cases, a S.M.A.R.T.
\ncapable device will predict an impending failure with sufficient time
\nto allow users to backup their data and replace the drive before data
\nloss of service.<\/p>\n
The S.M.A.R.T. sub-command comprise the ATA S.M.A.R.T. feature set
\nthat provide access to S.M.A.R.T. attribute values, attribute
\nthresholds and other logging and reporting information.<\/p>\n
Prior to writing any S.M.A.R.T. command to the device’s command
\nregister, key values must be written by the host into the device’s
\ncylinder low and cylinder high registers, or the command will be
\naborted. For any S.M.A.R.T. sub-command, if a device register is not
\nspecified as being written with a value by the host, then the value
\nin that register is undefined and should be ignored by the device.
\nthe values are:<\/p>\n
   KEY    REGISTER\r\n   4Fh    Cylinder Low  (1F4h)\r\n   C2hH   Cylinder High (1F5h)\r\n\r\n<\/pre>\n
The S.M.A.R.T. sub-commands use a single command code (BOh) and are
\ndifferentiated from one another by the value placed in the feature
\nregister. In order to issue a command, the host must write the sub-
\ncommand-specific code to the device’s features register before
\nwritung the command code to the command register. The sub-command
\nand their respective codes are:<\/p>\n
D8h Enable S.M.A.R.T<\/p>\n
D9h Disable S.M.A.R.T<\/p>\n
 DAh S.M.A.R.T. Return Status\r\n     This feature allows the host to access the status of a\r\n     S.M.A.R.T. capable device by comparing all saved attribute\r\n     values with their corresponding warranty failure thresholds. If\r\n     no thresholds are exceeded, the drive is declared to have a\r\n     positive health status. Executing this sub-comman results in all\r\n     attribute values being saved to non-volatile storage on the\r\n     device.\r\n\r\n<\/pre>\n
 DOh S.M.A.R.T. Read Attribute Value\r\n     This feature returns 512 bytes of attribute information to the\r\n     host.\r\n\r\n<\/pre>\n
 D1h S.M.A.R.T. Read Attribute Thresholds\r\n     This feature returns 512 bytes of warranty failure thresholds\r\n     to the host.\r\n\r\n<\/pre>\n
 D3h S.M.A.R.T. Save Attribute Value\r\n     This feature saves the current attribute values to non-volatile\r\n     storage.\r\n\r\n<\/pre>\n
 D2h Enable\/Disable Autosave\r\n     To enable this feature, set the sector count register to F1h\r\n     (enable) or 0 (disable). Attribute values are automatically\r\n     saved to non-volatile storage on the device after five minutes\r\n     of idle time and before entering idle, sleep or standby modes.\r\n     This feature is defaulted to \"enabled\" when S.M.A.R.T. is\r\n     enabled wia the S.M.A.R.T. Enable Operations commands. The\r\n     autosave feature will not impact host system performance and\r\n     does not need to be disabled.\r\n\r\n<\/pre>\n
The following attributes are available:<\/p>\n
   ID    Status Flag   Definition\r\n    1    OBh           Read Error Rate\r\n    3    27h           Spin Time\r\n    4    32h           Total Spinups\r\n    5    33h           Reallocated Sectors\r\n    7    OBh           Seek Error Rate\r\n    9    12h           Power-On Hours\r\n    A    27h           Spin-up Retries\r\n    C    32h           Total Power-ups<\/pre>\n<\/div>\n<\/div>\n
<\/div>\n","protected":false},"excerpt":{"rendered":"
Maxtor 7000 Series 72004A 2GB 4480RPM ATA 3.5″<\/p>\n","protected":false},"featured_media":6576,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[105,110],"product_tag":[],"class_list":{"0":"post-6575","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-hard-drives","7":"product_cat-ide-hard-drives","8":"pa_condition-used","9":"pa_featured-no","10":"pa_latest-yes","11":"pa_manufacturer-maxtor","12":"post","14":"first","15":"instock","16":"sale","17":"purchasable","18":"product-type-simple","19":"add-to-wishlist-before_image","20":"berocket_lgv_grid","21":"berocket_lgv_list_grid"},"yoast_head":"\nMaxtor 7000 Series 72004A 2GB 4480RPM ATA 3.5"<\/title>\n<meta name=\"description\" content=\"Maxtor 7000 Series 72004A 2GB 4480RPM ATA 3.5". 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