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       # UNIDENTIFIED
       
          MV-500
       
          +------------------------------------------------------------+
          |------------------------------------------------------------|
          | Data bus:         | 16-bit ISA                             |
          |-------------------+----------------------------------------|
          | Size:             | Half-length, full-height card          |
          |-------------------+----------------------------------------|
          | Hard drive        | Two IDE (AT) interface drives          |
          | supported:        |                                        |
          |-------------------+----------------------------------------|
          | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
          | supported:        | drives                                 |
          +------------------------------------------------------------+
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                 Function                 |    Location     |
          |------------------------------------------+-----------------|
          | 40-pin primary IDE(AT) connector         |       CN1       |
          |------------------------------------------+-----------------|
          | 34-pin cable connector - floppy drive    |       CN2       |
          |------------------------------------------+-----------------|
          | 10-pin serial port 1 - internal          |       CN3       |
          |------------------------------------------+-----------------|
          | 10-pin serial port 2 - internal          |       CN4       |
          |------------------------------------------+-----------------|
          | 16-pin game port                         |       CN5       |
          |------------------------------------------+-----------------|
          | 25-pin parallel port - external          |       CN6       |
          |------------------------------------------+-----------------|
          | 15-pin analog video port - external      |       CN7       |
          |------------------------------------------+-----------------|
          | 4-pin connector - drive active LED       |       JP1       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |             Function              | Location  |  Setting   |
          |-----------------------------------+-----------+------------|
          | »  | Serial port 2 enabled        |    JP3    | Pins 1 & 2 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          |    | Serial port 2 disabled       |    JP3    | Pins 2 & 3 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          | »  | Serial port 1 enabled        |    JP4    | Pins 1 & 2 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          |    | Serial port 1 disabled       |    JP4    | Pins 2 & 3 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          | »  | Game port enabled            |    JP5    | Pins 1 & 2 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          |    | Game port disabled           |    JP5    | Pins 2 & 3 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          | »  | Parallel port LPT1(378h)     |    JP6    | Pins 1 & 2 |
          |    | select                       |           |   closed   |
          |----+------------------------------+-----------+------------|
          |    | Parallel port LPT2(278h)     |    JP6    | Pins 2 & 3 |
          |    | select                       |           |   closed   |
          |----+------------------------------+-----------+------------|
          | »  | Floppy drive interface       |    JP7    | Pins 1 & 2 |
          |    | enabled                      |           |   closed   |
          |----+------------------------------+-----------+------------|
          |    | Floppy drive interface       |    JP7    | Pins 2 & 3 |
          |    | disabled                     |           |   closed   |
          |----+------------------------------+-----------+------------|
          | »  | IDE(AT) interface enabled    |    JP8    | Pins 1 & 2 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          |    | IDE(AT) interface disabled   |    JP8    | Pins 2 & 3 |
          |    |                              |           |   closed   |
          |----+------------------------------+-----------+------------|
          | »  | Controller is only one       |    JP9    | Pins 1 & 2 |
          |    | present in system            |           |   closed   |
          |----+------------------------------+-----------+------------|
          |    | Other controllers are        |    JP9    | Pins 2 & 3 |
          |    | present in system            |           |   closed   |
          |----+------------------------------+-----------+------------|
          | »  | Wait state 0 enabled         |   JP10    |   Closed   |
          |----+------------------------------+-----------+------------|
          |    | Wait state 0 disabled        |   JP10    |    Open    |
          |------------------------------------------------------------|
          | Note: Jumper JP2 is optional IOCHRDY connector for IDE.    |
          | Settings are unidentified.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |     Size     |         Bank 0         |       Bank 1       |
          |--------------+------------------------+--------------------|
          |    256KB     |      (2) 256K x 4      |        NONE        |
          |--------------+------------------------+--------------------|
          |    512KB     |      (2) 256K x 4      |    (2) 256K x 4    |
          |------------------------------------------------------------|
          | Note: Exact orientation of chips in Bank 0 & Bank 1 is     |
          | unidentified.                                              |
          +------------------------------------------------------------+