(TXT) View Source
       
       # ICL
       
          CS486S
       
          Processor    80487SX/80486DX                                   
          Processor    20/33MHz                                          
          Speed        
          Chip Set     Unidentified                                      
          Max. Onboard 26MB                                              
          DRAM         
          Cache        None                                              
          BIOS         ICL                                               
          Dimensions   330mm x 218mm                                     
          I/O Options  PS/2 mouse port, parallel port, serial ports (2), 
                       VGA port, floppy drive interface, IDE interface   
          NPU Options  None                                              
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | Parallel port    |   CN1    | Floppy drive      |   CN7    |
          |                  |          | interface         |          |
          |------------------+----------+-------------------+----------|
          | Serial port 1    |   CN2    | PS/2 mouse        |   CN8    |
          |                  |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | Serial port 2    |   CN3    | Keyboard          |   CN9    |
          |                  |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | VGA port         |   CN4    | Front panel       |   CN10   |
          |                  |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | External battery |   CN5    | Riser slot        |   SL1    |
          |------------------+----------+-------------------+----------|
          | IDE interface    |   CN6    |                   |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | On board VGA enabled      |      J1       | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | On board VGA disabled     |      J1       | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |      J2       | pins 1 & 2 |
          |   | not alter                 |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |      J3       | pins 1 & 2 |
          |   | not alter                 |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |      J4       |   Closed   |
          |   | not alter                 |               |            |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |      J5       | pins 1 & 2 |
          |   | not alter                 |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |      J6       | pins 1 & 2 |
          |   | not alter                 |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Factory configured - do   |      J7       | pins 2 & 3 |
          |   | not alter                 |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | BIOS type select 27512    |      J15      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | BIOS type select 27256    |      J15      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | CMOS memory normal        |      J18      |    Open    |
          |   | operation                 |               |            |
          |---+---------------------------+---------------+------------|
          |   | CMOS memory clear         |      J18      |   Closed   |
          |---+---------------------------+---------------+------------|
          | » | VGA uses 0 wait states    |      J22      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | VGA uses IRQ9             |      J22      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | ATREF# enabled            |      J23      | pins 1 & 2 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | ATREF# disabled           |      J23      | pins 2 & 3 |
          |   |                           |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | BIOS bit select 8-bit     |      J71      | pins 2 & 3 |
          |   | BIOS                      |               |   closed   |
          |---+---------------------------+---------------+------------|
          |   | BIOS bit select 16-bit    |      J71      | pins 1 & 2 |
          |   | BIOS                      |               |   closed   |
          |---+---------------------------+---------------+------------|
          | » | Floppy drive interface    |     SW1/1     |     On     |
          |   | enabled                   |               |            |
          |---+---------------------------+---------------+------------|
          |   | Floppy drive interface    |     SW1/1     |    Off     |
          |   | disabled                  |               |            |
          |---+---------------------------+---------------+------------|
          | » | IDE interface enabled     |     SW1/2     |     On     |
          |---+---------------------------+---------------+------------|
          |   | IDE interface disabled    |     SW1/2     |    Off     |
          |---+---------------------------+---------------+------------|
          | » | Serial port 1 enabled     |     SW1/3     |     On     |
          |---+---------------------------+---------------+------------|
          |   | Serial port 1 disabled    |     SW1/3     |    Off     |
          |---+---------------------------+---------------+------------|
          | » | Serial port 2 enabled     |     SW1/4     |     On     |
          |---+---------------------------+---------------+------------|
          |   | Serial port 2 disabled    |     SW1/4     |    Off     |
          |---+---------------------------+---------------+------------|
          | » | Parallel port enabled     |     SW1/5     |     On     |
          |---+---------------------------+---------------+------------|
          |   | Parallel port disabled    |     SW1/5     |    Off     |
          |---+---------------------------+---------------+------------|
          | » | Memory 0F0000H-0FFFFFFH   |     SW1/6     |    Off     |
          |   | available for expansion   |               |            |
          |---+---------------------------+---------------+------------|
          |   | Memory 0F0000H-0FFFFFFH   |     SW1/6     |     On     |
          |   | reserved for system board |               |            |
          |---+---------------------------+---------------+------------|
          | » | Reset disabled            |     SW1/7     |    Off     |
          |---+---------------------------+---------------+------------|
          |   | Reset enabled             |     SW1/7     |     On     |
          |---+---------------------------+---------------+------------|
          | » | Password disabled         |     SW1/8     |     On     |
          |---+---------------------------+---------------+------------|
          |   | Password enabled          |     SW1/8     |    Off     |
          |------------------------------------------------------------|
          | Note: The location of jumpers J2, J4, J5, J6, &J7 and SW1  |
          | are unidentified.                                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size | Bank 0 |    Bank 1    |    Bank 2    |    Bank 3    |
          |------+--------+--------------+--------------+--------------|
          | 2MB  |  2MB   |     NONE     |     NONE     |     NONE     |
          |------+--------+--------------+--------------+--------------|
          | 4MB  |  2MB   |  (1) 512K x  |     NONE     |     NONE     |
          |      |        |      36      |              |              |
          |------+--------+--------------+--------------+--------------|
          | 6MB  |  2MB   |  (1) 512K x  |  (1) 512K x  |     NONE     |
          |      |        |      36      |      36      |              |
          |------+--------+--------------+--------------+--------------|
          | 6MB  |  2MB   | (1) 1M x 36  |     NONE     |     NONE     |
          |------+--------+--------------+--------------+--------------|
          | 8MB  |  2MB   |  (1) 512K x  |  (1) 512K x  |  (1) 512K x  |
          |      |        |      36      |      36      |      36      |
          |------+--------+--------------+--------------+--------------|
          | 8MB  |  2MB   |  (1) 512K x  | (1) 1M x 36  |     NONE     |
          |      |        |      36      |              |              |
          |------+--------+--------------+--------------+--------------|
          | 10MB |  2MB   |  (1) 512K x  |  (1) 512K x  | (1) 1M x 36  |
          |      |        |      36      |      36      |              |
          |------+--------+--------------+--------------+--------------|
          | 10MB |  2MB   | (1) 2M x 36  |     NONE     |     NONE     |
          |------+--------+--------------+--------------+--------------|
          | 12MB |  2MB   |  (1) 512K x  | (1) 2M x 36  |     NONE     |
          |      |        |      36      |              |              |
          |------+--------+--------------+--------------+--------------|
          | 14MB |  2MB   |  (1) 512K x  |  (1) 512K x  | (1) 2M x 36  |
          |      |        |      36      |      36      |              |
          |------+--------+--------------+--------------+--------------|
          | 14MB |  2MB   | (1) 1M x 36  | (1) 2M x 36  |     NONE     |
          |------+--------+--------------+--------------+--------------|
          | 16MB |  2MB   |  (1) 512K x  | (1) 1M x 36  | (1) 2M x 36  |
          |      |        |      36      |              |              |
          |------+--------+--------------+--------------+--------------|
          | 18MB |  2MB   | (1) 2M x 36  | (1) 2M x 36  |     NONE     |
          |------+--------+--------------+--------------+--------------|
          | 20MB |  2MB   |  (1) 512K x  | (1) 2M x 36  | (1) 2M x 36  |
          |      |        |      36      |              |              |
          |------+--------+--------------+--------------+--------------|
          | 22MB |  2MB   | (1) 1M x 36  | (1) 2M x 36  | (1) 2M x 36  |
          |------+--------+--------------+--------------+--------------|
          | 26MB |  2MB   | (1) 2M x 36  | (1) 2M x 36  | (1) 2M x 36  |
          |------------------------------------------------------------|
          | Note: Bank 0 is factory installed and is not configurable. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |            Speed             |            JP102            |
          |------------------------------+-----------------------------|
          |            20MHz             |           Closed            |
          |------------------------------+-----------------------------|
          |            33MHz             |            Open             |
          +------------------------------------------------------------+