(TXT) View Source
       
       # CACHE COMPUTERS, INC.
       
          386SX-20/25 PLUS (Model 320)
       
                                                                         
          Processor        80386SX                                       
          Processor Speed  20/25MHz                                      
          Chip Set         OPTI                                          
          Max. Onboard     16MB                                          
          DRAM             
          Cache            64KB                                          
          BIOS             AMI/Cache/Phoenix                             
          Dimensions       330mm x 218mm                                 
          I/O Options      Parallel port, serial ports (2), game port,   
                           floppy drive interface, IDE interface         
          NPU Options      80387SX                                       
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Auxiliary         |    J2    | COM2 at 2F8-2FFh |    P2    |
          | keyboard          |          |                  |          |
          |-------------------+----------+------------------+----------|
          | External battery  |   JP1    | Game port at     |    P3    |
          |                   |          | 201h             |          |
          |-------------------+----------+------------------+----------|
          | IDE LED           |   JP8    | Parallel port at |    P5    |
          |                   |          | 378-37Fh         |          |
          |-------------------+----------+------------------+----------|
          | Turbo LED         |   JP12   | IDE interface    |    P6    |
          |-------------------+----------+------------------+----------|
          | Speaker           |   JP13   | Floppy drive     |    P7    |
          |                   |          | interface        |          |
          |-------------------+----------+------------------+----------|
          | Power LED &       |   JP14   | Reset switch     |   SW1    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | COM1 at 3F8-3FFh  |    P1    | Turbo switch     |   SW2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | Parallel port enabled     |      JP3      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | Parallel port disabled    |      JP3      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | IRQ 7 enabled             |      JP5      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | IRQ 7 disabled            |      JP5      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | IRQ 3 enabled             |      JP6      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | IRQ 3 disabled            |      JP6      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | IRQ 4 enabled             |      JP7      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | IRQ 4 disabled            |      JP7      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | Monitor type set color    |      JP9      |   Closed   |
          |   | (AMI BIOS)                |               |            |
          |---+---------------------------+---------------+------------|
          |   | Monitor type set          |      JP9      |    Open    |
          |   | monochrome (AMI BIOS)     |               |            |
          |---+---------------------------+---------------+------------|
          | » | Security enabled (MR      |      JP9      |   Closed   |
          |   | BIOS)                     |               |            |
          |---+---------------------------+---------------+------------|
          |   | Security disabled (MR     |      JP9      |    Open    |
          |   | BIOS)                     |               |            |
          |---+---------------------------+---------------+------------|
          | » | CMOS memory normal        |     JP11      |    Open    |
          |   | operation                 |               |            |
          |---+---------------------------+---------------+------------|
          |   | CMOS memory clear         |     JP11      |   Closed   |
          |---+---------------------------+---------------+------------|
          | » | CPU speed switchable from |     JP15      | pins 1 & 2 |
          |   | keyboard                  |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | CPU speed switchable from |     JP15      | pins 2 & 3 |
          |   | turbo switch              |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | IDE interface enabled     |     SW3/1     |    Off     |
          |---+---------------------------+---------------+------------|
          |   | IDE interface disabled    |     SW3/1     |     On     |
          |---+---------------------------+---------------+------------|
          | » | Floppy interface enabled  |     SW3/2     |    Off     |
          |---+---------------------------+---------------+------------|
          |   | Floppy interface disabled |     SW3/2     |     On     |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |     SW3/3     |    N/A     |
          |   | not alter                 |               |            |
          |---+---------------------------+---------------+------------|
          | » | Floppy interface select   |     SW3/9     |     On     |
          |   | primary (only with 2      |               |            |
          |   | controllers)              |               |            |
          |---+---------------------------+---------------+------------|
          |   | Floppy interface select   |     SW3/9     |    Off     |
          |   | secondary (only with 2    |               |            |
          |   | controllers)              |               |            |
          |---+---------------------------+---------------+------------|
          | » | Configuration select      |    SW3/10     |     On     |
          |   | manual                    |               |            |
          |---+---------------------------+---------------+------------|
          |   | Configuration select      |    SW3/10     |    Off     |
          |   | automatic                 |               |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 1MB  | (2) 256K x  | (2) 256K x  |    NONE    |    NONE    |
          |      |      9      |      9      |            |            |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (2) 256K x  | (2) 256K x  | (2) 256K x | (2) 256K x |
          |      |      9      |      9      |     9      |     9      |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (2) 1M x 9  |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 3MB  | (2) 256K x  | (2) 1M x 9  |    NONE    |    NONE    |
          |      |      9      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (2) 1M x 9  | (2) 1M x 9  |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (2) 256K x  | (2) 256K x  | (2) 1M x 9 | (2) 1M x 9 |
          |      |      9      |      9      |            |            |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (2) 1M x 9  | (2) 1M x 9  | (2) 1M x 9 |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (2) 1M x 9  | (2) 1M x 9  | (2) 1M x 9 | (2) 1M x 9 |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (2) 256K x  | (2) 256K x  | (2) 4M x 9 |    NONE    |
          |      |      9      |      9      |            |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (2) 1M x 9  | (2) 4M x 9  |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 12MB | (2) 1M x 9  | (2) 1M x 9  | (2) 4M x 9 |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 16MB | (2) 4M x 9  | (2) 4M x 9  |    NONE    |    NONE    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Size            |            Bank 0             |
          |----------------------------+-------------------------------|
          |            64KB            |          (8) 8K x 8           |
          |------------------------------------------------------------|
          | Note:The location of the cache is unidentified.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PARALLEL PORT CONFIGURATION                 |
          |------------------------------------------------------------|
          |        Setting         |      SW3/7      |      SW3/8      |
          |------------------------+-----------------+-----------------|
          | » |        LPT2        |       Off       |       Off       |
          |---+--------------------+-----------------+-----------------|
          |   |        LPT1        |       Off       |       On        |
          |---+--------------------+-----------------+-----------------|
          |   |        LPT3        |       On        |       Off       |
          |---+--------------------+-----------------+-----------------|
          |   |      Disabled      |       On        |       On        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          | Serial port (P1) |   Serial port   | SW3/4 | SW3/5 | SW3/6 |
          |                  |      (P2)       |       |       |       |
          |------------------+-----------------+-------+-------+-------|
          |       COM1       |      COM2       |  Off  |  Off  |  Off  |
          |------------------+-----------------+-------+-------+-------|
          |     Disabled     |      COM2       |  Off  |  Off  |  On   |
          |------------------+-----------------+-------+-------+-------|
          |       COM1       |    Disabled     |  Off  |  On   |  Off  |
          |------------------+-----------------+-------+-------+-------|
          |     Disabled     |    Disabled     |  Off  |  On   |  On   |
          |------------------+-----------------+-------+-------+-------|
          |       COM2       |      COM1       |  On   |  Off  |  Off  |
          |------------------+-----------------+-------+-------+-------|
          |     Disabled     |      COM1       |  On   |  Off  |  On   |
          |------------------+-----------------+-------+-------+-------|
          |       COM2       |    Disabled     |  On   |  On   |  Off  |
          |------------------+-----------------+-------+-------+-------|
          |     Disabled     |    Disabled     |  On   |  On   |  On   |
          +------------------------------------------------------------+