(TXT) View Source
       
       # OGIVAR INC.
       
          INTERSYSTEM 386SX
       
          Processor         80386SX (exact location unidentified)        
          Processor Speed   16/20MHz                                     
          Chip Set          Unidentified                                 
          Max. Onboard DRAM 8MB                                          
          Cache             None                                         
          BIOS              Unidentified                                 
          Dimensions        330mm x 218mm                                
          I/O Options       None                                         
          NPU Options       80387SX (exact location unidentified)        
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | External battery |    J2    | Speaker           |   J13    |
          |------------------+----------+-------------------+----------|
          | Reset switch     |   J11    | Power LED &       |   J14    |
          |                  |          | keylock           |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Factory configured - do not      |  J12   |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J15   |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Battery type select external     |  JP1   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | Battery type select internal     |  JP1   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | BIOS type select 27256           |  JP2   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | BIOS type select 27128           |  JP2   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |  JP4   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  JP4   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | NPU disabled                     |  JP7   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | NPU enabled                      |  JP7   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Pipeline mode enabled            |  JP8   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Pipeline mode disabled           |  JP8   |    Open    |
          |------------------------------------------------------------|
          | Note: NPU must be synchronous with CPU.                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |   Size   |   Bank 0    |  Bank 1   |  Bank 2   |  Bank 3   |
          |----------+-------------+-----------+-----------+-----------|
          |  512KB   | (2) 256K x  |   NONE    |   NONE    |   NONE    |
          |          |      9      |           |           |           |
          |----------+-------------+-----------+-----------+-----------|
          |   1MB    | (2) 256K x  | (2) 256K  |   NONE    |   NONE    |
          |          |      9      |    x 9    |           |           |
          |----------+-------------+-----------+-----------+-----------|
          |   2MB    | (2) 256K x  | (2) 256K  | (2) 256K  | (2) 256K  |
          |          |      9      |    x 9    |    x 9    |    x 9    |
          |----------+-------------+-----------+-----------+-----------|
          |   4MB    | (2) 1M x 9  | (2) 1M x  |   NONE    |   NONE    |
          |          |             |     9     |           |           |
          |----------+-------------+-----------+-----------+-----------|
          |   5MB    | (2) 256K x  | (2) 256K  | (2) 1M x  | (2) 1M x  |
          |          |      9      |    x 9    |     9     |     9     |
          |----------+-------------+-----------+-----------+-----------|
          |   8MB    | (2) 1M x 9  | (2) 1M x  | (2) 1M x  | (2) 1M x  |
          |          |             |     9     |     9     |     9     |
          |------------------------------------------------------------|
          | Note: Banks locations are unidentified and are labeled on  |
          | the board in the following manner:                         |
          |------------------------------------------------------------|
          | Bank 0: SIMM 4 & 8                                         |
          |------------------------------------------------------------|
          | Bank 1: SIMM 3 & 7                                         |
          |------------------------------------------------------------|
          | Bank 2: SIMM 2 & 6                                         |
          |------------------------------------------------------------|
          | Bank 3: SIMM 1 & 5                                         |
          +------------------------------------------------------------+