ABIT COMPUTER CORPORATION
=========================

   FU3 (VER. 2)

   Processor              80386DX                                 
   Processor Speed        25/33/40MHz                             
   Chip Set               Unidentified                            
   Video Chip Set         None                                    
   Maximum Onboard Memory 32MB                                    
   Maximum Video Memory   None                                    
   Cache                  32/64/128/256KB                         
   BIOS                   AMI                                     
   Dimensions             330mm x 218mm                           
   I/O Options            None                                    
   NPU Options            80387DX/3167                            

<gopher://bitreich.org/I/th99/m/S-T/35096-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Turbo LED         |    D4    | Turbo switch     |   J50    |
   |-------------------+----------+------------------+----------|
   | Speaker           |   J18    | Reset switch     |   J51    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   J19    | External battery |   JP2    |
   | keylock           |          |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  J21  |     Open     |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Monitor type select monochrome  |  J23  |     Open     |
   |---+---------------------------------+-------+--------------|
   |   | Monitor type select color       |  J23  |    Closed    |
   |---+---------------------------------+-------+--------------|
   |>> | CMOS memory normal operation    |  J42  |  Pins 2 & 3  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |   | CMOS memory clear               |  J42  |  Pins 1 & 2  |
   |   |                                 |       |    closed    |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP10  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP11  | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JP30  |    Closed    |
   |   | alter                           |       |              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size   |     Bank 0     |     Bank 1     |      TAG      |
   |----------+----------------+----------------+---------------|
   |   32KB   |   (4) 8K x 8   |      None      |  (1) 8K x 8   |
   |----------+----------------+----------------+---------------|
   |   64KB   |   (4) 8K x 8   |   (4) 8K x 8   |  (2) 16K x 4  |
   |----------+----------------+----------------+---------------|
   |  128KB   |  (4) 32K x 8   |      None      |  (1) 32K x 8  |
   |----------+----------------+----------------+---------------|
   |  256KB   |  (4) 32K x 8   |  (4) 32K x 8   |  (2) 64K x 4  |
   |------------------------------------------------------------|
   | Note: The location of banks 0 & 1 and TAG are              |
   | unidentified.                                              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |  Size   |        J26        |   J27    |   J28   |   J29   |
   |---------+-------------------+----------+---------+---------|
   |  32KB   | Pins 1 & 2 closed |   Open   |  Open   | Closed  |
   |---------+-------------------+----------+---------+---------|
   |  64KB   | Pins 1 & 2 closed |  Closed  |  Open   | Closed  |
   |---------+-------------------+----------+---------+---------|
   |  128KB  | Pins 2 & 3 closed |  Closed  |  Open   | Closed  |
   |---------+-------------------+----------+---------+---------|
   |  256KB  | Pins 2 & 3 closed |  Closed  | Closed  |  Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             CACHE JUMPER CONFIGURATION (CON'T)             |
   |------------------------------------------------------------|
   |   Size   |   J33    |   J34    |   J35   |  J36   |  J37   |
   |----------+----------+----------+---------+--------+--------|
   |   32KB   |  Closed  |   Open   |  2 & 3  | 2 & 3  | 2 & 3  |
   |----------+----------+----------+---------+--------+--------|
   |   64KB   |  Closed  |  1 & 2   |  Open   | 2 & 3  | 2 & 3  |
   |----------+----------+----------+---------+--------+--------|
   |  128KB   |   Open   |  1 & 2   |  Open   | 1 & 2  | 1 & 2  |
   |----------+----------+----------+---------+--------+--------|
   |  256KB   |   Open   |  1 & 2   |  1 & 2  | 1 & 2  | 1 & 2  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             CACHE JUMPER CONFIGURATION (CON'T)             |
   |------------------------------------------------------------|
   | Size  |     J38     |    J39     |    J41     |    J52     |
   |-------+-------------+------------+------------+------------|
   | 32KB  |    Open     | Pins 2 & 3 |    Open    | Pins 1 & 2 |
   |       |             |   closed   |            |   closed   |
   |-------+-------------+------------+------------+------------|
   | 64KB  | Pins 1 & 2  | Pins 1 & 2 |    Open    | Pins 1 & 2 |
   |       |   closed    |   closed   |            |   closed   |
   |-------+-------------+------------+------------+------------|
   | 128KB | Pins 2 & 3  | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
   |       |   closed    |   closed   |   closed   |   closed   |
   |-------+-------------+------------+------------+------------|
   | 256KB | Pins 2 & 3  | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
   |       |   closed    |   closed   |   closed   |   closed   |
   +------------------------------------------------------------+