KT TECHNOLOGY PTE LTD.
======================

   KT333OP3C-WB/BI PQFP 386DX MAINBOARD

   Processor         80386DX                                      
   Processor Speed   25/33/40MHz                                  
   Chip Set          VLSI                                         
   Max. Onboard DRAM 32MB                                         
   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/I-L/32965-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | External battery  |   J17    | Turbo LED &      |   J22    |
   |                   |          | turbo switch     |          |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   J20    | Reset switch     |   J23    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Speaker           |   J21    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Normal operation                 |   W1   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Manufacturer testing             |   W1   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |   W2   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |   W2   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Bus clock speed select 4         |   W3   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Bus clock speed select 3         |   W3   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |   W4   |    N/A     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |   W5   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |   W5   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | NPU input clock select external  |   W6   | pins 1 & 2 |
   |   | oscillation for 80387            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | NPU input clock select internal  |   W6   | pins 2 & 3 |
   |   | oscillation for 80386            |        |   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        |
   |------------------+--------------------+--------------------|
   |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size   |     Bank 0      |     Bank 1     |     TAG      |
   |----------+-----------------+----------------+--------------|
   |   32KB   |   (4) 8K x 8    |      NONE      |  (3) 4K x 4  |
   |----------+-----------------+----------------+--------------|
   |   64KB   |   (4) 8K x 8    |   (4) 8K x 8   |  (3) 4K x 4  |
   |----------+-----------------+----------------+--------------|
   |  128KB   |   (4) 32K x 8   |      NONE      | (3) 16K x 4  |
   |----------+-----------------+----------------+--------------|
   |  256KB   |   (4) 32K x 8   |  (4) 32K x 8   | (3) 16K x 4  |
   |------------------------------------------------------------|
   | Note: The location of Bank 0 and Bank 1 are unidentified.  |
   | The location of the Tag is unidentified.                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |  Size  |   W7   |   W8   |   W9   |  W10   |  W11  |  W12  |
   |--------+--------+--------+--------+--------+-------+-------|
   |  32KB  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
   |--------+--------+--------+--------+--------+-------+-------|
   |  64KB  | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2  | 2 & 3 | 2 & 3 |
   |--------+--------+--------+--------+--------+-------+-------|
   | 128KB  | 2 & 3  | 2 & 3  | 1 & 2  | 1 & 2  | 2 & 3 | 2 & 3 |
   |--------+--------+--------+--------+--------+-------+-------|
   | 256KB  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3  | 2 & 3 | 2 & 3 |
   +------------------------------------------------------------+