CACHE COMPUTERS, INC.
=====================

   386SX-25 (Model 316)

                                                                  
   Processor       80386SX                                        
   Processor speed 20/25MHz                                       
   Chip Set        OPTI                                           
   Max. Onboard    16MB                                           
   DRAM            
   Cache           None                                           
   BIOS            AMI/Cache                                      
   Dimensions      330.2mm x 218.4mm                              
   I/O Options     Bus mouse port, game port, serial ports (2),   
                   parallel port, floppy drive interface, IDE     
                   interface                                      
   NPU options     80387SX                                        

<gopher://bitreich.org/I/th99/m/C-D/30032-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Auxiliary         |    J1    | Game port        |    P3    |
   | keyboard          |          |                  |          |
   |-------------------+----------+------------------+----------|
   | External battery  |    J3    | Bus mouse port   |    P4    |
   |-------------------+----------+------------------+----------|
   | IDE interface LED |   J13    | IDE interface    |    P5    |
   |-------------------+----------+------------------+----------|
   | Speaker           |   J21    | Floppy drive     |    P6    |
   |                   |          | interface        |          |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   J22    | Parallel port    |    P7    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |   JP3    | Reset switch     |    S1    |
   |-------------------+----------+------------------+----------|
   | Serial port 0     |    P1    | Turbo switch     |    S2    |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |    P2    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | CMOS memory normal        |      JP1      | pins 2 & 3 |
   |   | operation (internal       |               |   closed   |
   |   | battery)                  |               |            |
   |---+---------------------------+---------------+------------|
   |   | CMOS memory normal        |      JP1      |    Open    |
   |   | operation (external       |               |            |
   |   | battery)                  |               |            |
   |---+---------------------------+---------------+------------|
   |   | CMOS memory clear         |      JP1      | pins 1 & 2 |
   |   |                           |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select color |      JP2      |   Closed   |
   |   | (AMI BIOS)                |               |            |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |      JP2      |    Open    |
   |   | monochrome (AMI BIOS)     |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Password enabled (Cache   |      JP2      |   Closed   |
   |   | BIOS)                     |               |            |
   |---+---------------------------+---------------+------------|
   |   | Password disabled (Cache  |      JP2      |    Open    |
   |   | BIOS)                     |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Floppy drive              |     SW1/1     |    Off     |
   |   | interface-(P6) enabled    |               |            |
   |---+---------------------------+---------------+------------|
   |   | Floppy drive              |     SW1/1     |     On     |
   |   | interface-(P6) disabled   |               |            |
   |---+---------------------------+---------------+------------|
   |>> | IDE interface-(P5)        |     SW1/2     |    Off     |
   |   | enabled                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | IDE interface (P5)        |     SW1/2     |     On     |
   |   | disabled                  |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Serial port 0 (P1)        |     SW1/3     |    Off     |
   |   | enabled                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | Serial port 0 (P1)        |     SW1/3     |     On     |
   |   | disabled                  |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Serial port 1 (P2)        |     SW1/4     |    Off     |
   |   | enabled                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | Serial port 1 (P2)        |     SW1/4     |     On     |
   |   | disabled                  |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Game port (P3) enabled    |     SW1/5     |    Off     |
   |---+---------------------------+---------------+------------|
   |   | Game port (P3) disabled   |     SW1/5     |     On     |
   |---+---------------------------+---------------+------------|
   |>> | Parallel port (P7)        |     SW1/6     |    Off     |
   |   | enabled                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | Parallel port (P7)        |     SW1/6     |     On     |
   |   | disabled                  |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Bus mouse port (P4)       |     SW1/7     |    Off     |
   |   | enabled                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | Bus mouse port (P4)       |     SW1/7     |     On     |
   |   | disabled                  |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Floppy drive interface    |      W3       |    Open    |
   |   | (P6) address select       |               |            |
   |   | 1F0-1F7                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | Floppy drive interface    |      W3       |   Closed   |
   |   | (P6) address select       |               |            |
   |   | 170-177                   |               |            |
   |---+---------------------------+---------------+------------|
   |>> | IDE address select        |      W4       |    Open    |
   |   | 3F1-3F7                   |               |            |
   |---+---------------------------+---------------+------------|
   |   | IDE address select        |      W4       |   Closed   |
   |   | 371-377                   |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Serial port 0 (P1)        |      W5       |    Open    |
   |   | address select 3F8-3FF    |               |            |
   |---+---------------------------+---------------+------------|
   |   | Serial port 0 (P1)        |      W5       |   Closed   |
   |   | address select 3E8-3EF    |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Serial port 1 (P2)        |      W6       |    Open    |
   |   | address select 2F8-2FF    |               |            |
   |---+---------------------------+---------------+------------|
   |   | Serial port 1 (P2)        |      W6       |   Closed   |
   |   | address select 2E8-2EF    |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Parallel port (P7)        |      W7       |    Open    |
   |   | address select 378-37F    |               |            |
   |---+---------------------------+---------------+------------|
   |   | Parallel port (P7)        |      W7       |   Closed   |
   |   | address select 278-27F    |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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) 256K x  | (2) 1M x 9 |    NONE    |
   |      |      9      |      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    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             BUS MOUSE INTERRUPT CONFIGURATION              |
   |------------------------------------------------------------|
   |        IRQ        |         W1         |        W2         |
   |-------------------+--------------------+-------------------|
   |       IRQ5        |        Open        |      Closed       |
   |-------------------+--------------------+-------------------|
   |       IRQ2        |       Closed       |       Open        |
   |-------------------+--------------------+-------------------|
   |       None        |        Open        |       Open        |
   +------------------------------------------------------------+