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Hard Drive: NEC: D3725-501 540MB 3.5"/SL ATA2 FAST




D 3 7 2 5 - 5 0 1    NEC
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    3493|     |     |
Capacity form/unform   540/      MB        Heads           2|     |     |
Seek time   / track  11.0/ 3.0 ms          Sector/track     |     |     |
Controller           IDE / ATA2 FAST/ENHA  Precompensation
Cache/Buffer           256 KB READ/WRITE   Landing Zone
Data transfer rate    6.000 MB/S int       Bytes/Sector      512
                     16.600 MB/S ext PIO4
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 60
Power: sleep          1.8 W     Humidity     %         8 80    |      8 90
       standby            W     Altitude    km                 |
       idle               W     Shock        g         5       |     75
       seek               W     Rotation   RPM      4090
       read/write     3.6 W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h     300000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

Layout

NEC D3723/3725 JUMPER SETTING

  +---------------------------------------------------------+
  |                                                         |XX
  |                                                 SW1+--4 |XX
  |                                                    |  | |XX PCAT
  |                                                    +--1 |XX I/F
  |                                                  +++++  |XX
  |                                               JP1+++++  |XX
  |                                                 RESERVED|XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |+-+J8                                                    |XX
  |+-+LED                                                   |
  |                                                         |XX
  |                                                         |XX
  +---------------------------------------------------------+

Jumpers

NEC D3723/3725 JUMPER SETTING

Jumper Setting
==============

                                               |  |
 SW1                                           |  |
  +---------------+ON                         ++  ++
  |+-+ +-+ +-+ +-+|                            \  /
  ||x| |x| |x| |x||                             \/
  |+-+ +-+ +-+ +-+|                       AT IF Connector Side
  +-1---2---3---4-+OFF
    |   |   |   +-------------- ALWAYS SETS OFF
    |   |   +------------------ ALWAYS SETS OFF
    |   +---------------------- CSEL (Cable Select)
    |                           ON - effective
    |                           OFF - ineffective
    +-------------------------- M/S
                                ON - MASTER
                                OFF - SLAVE

JP1 Connector
-------------
All pins Factory use!
DON'T USE!

 J8 LED Connector
 ----------------
        2  1
     +--------+
     |  |  |  |
     +--+--+--+
     ++++-++-++
      +++-++-+
       |   +---- Anode Side
       +-------- Cathode Side













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