SILICON STAR INTERNATIONAL, INC.
================================

   FA4 MAIN BOARD

   Processor             80386DX/CX486DLC                         
   Processor Speed       33/40MHz                                 
   Chip Set              ALI                                      
   Max. Onboard DRAM     32MB                                     
   SRAM Cache            32/64/128/256KB                          
   BIOS                  AMI                                      
   Dimensions            240mm x 220mm                            
   I/O Options           None                                     
   NPU Options           CX83D87                                  

<gopher://bitreich.org/I/th99/m/A-B/31334-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose          | Location  |
   |------------------+----------+------------------+-----------|
   | External battery |    J4    | Turbo switch     | J7 pins 1 |
   |                  |          |                  |    & 2    |
   |------------------+----------+------------------+-----------|
   | Reset switch     |    J5    | Turbo LED        | J7 pins 4 |
   |                  |          |                  |    & 5    |
   |------------------+----------+------------------+-----------|
   | Speaker          |    J6    | Power LED &      |    J8     |
   |                  |          | keylock          |           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP2   | pins 2 & 3 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP7   | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP8   | pins 2 & 3 |
   |   | alter                            |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size    |         Bank 0         |        Bank 1         |
   |-----------+------------------------+-----------------------|
   |    1MB    |      (4) 256K x 9      |         NONE          |
   |-----------+------------------------+-----------------------|
   |    2MB    |      (4) 256K x 9      |     (4) 256K x 9      |
   |-----------+------------------------+-----------------------|
   |    4MB    |       (4) 1M x 9       |         NONE          |
   |-----------+------------------------+-----------------------|
   |    8MB    |       (4) 1M x 9       |      (4) 1M x 9       |
   |-----------+------------------------+-----------------------|
   |   16MB    |       (4) 4M x 9       |         NONE          |
   |-----------+------------------------+-----------------------|
   |   32MB    |       (4) 4M x 9       |      (4) 4M x 9       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   | Size  |           Jumper JP5           |    Jumper JP6     |
   |-------+--------------------------------+-------------------|
   | 32KB  |              open              | pins 2 & 3 closed |
   |-------+--------------------------------+-------------------|
   | 64KB  |              open              | pins 1 & 2 closed |
   |-------+--------------------------------+-------------------|
   | 128KB |  pins 1 & 2, 3 & 4 and 5 & 6   | pins 2 & 3 closed |
   |       |             closed             |                   |
   |-------+--------------------------------+-------------------|
   | 256KB |  pins 1 & 2, 3 & 4 and 5 & 6   | pins 1 & 2 closed |
   |       |             closed             |                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |  Cache SRAM   |   Location    |      TAG      |
   |------------+---------------+---------------+---------------|
   |    32KB    |  (4) 8K x 8   |    Bank 0     |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (8) 8K x 8   |  Banks 0 & 1  |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |    Bank 0     |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (8) 32K x 8  |  Banks 0 & 1  |  (1) 32K x 8  |
   +------------------------------------------------------------+