ASUS COMPUTER INTERNATIONAL
===========================

   VL/ISA-486SV2 REV. 1.72

   Processor    80486SX/80487SX/80486DX/80486DX2/Pentium          
                Overdrive                                         
   Processor    20/25/33/40/50(internal)/50/66(internal)MHz       
   Speed        
   Chip Set     Unidentified                                      
   Max. Onboard 32MB                                              
   DRAM         
   Cache        64/128/256KB                                      
   BIOS         AMI                                               
   Dimensions   254mm x 218mm                                     
   I/O Options  32-bit VESA local bus slots (2)                   
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/A-B/33177-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | External battery |  BCON1   | Speaker           |   CON4   |
   |------------------+----------+-------------------+----------|
   | Turbo switch     |   CON1   | Power LED &       |   CON5   |
   |                  |          | keylock           |          |
   |------------------+----------+-------------------+----------|
   | Turbo LED        |   CON2   | 32-bit VESA local |  SL1 &   |
   |                  |          | bus slots         |   SL2    |
   |------------------+----------+-------------------+----------|
   | Reset switch     |   CON3   |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |   | Battery type select internal     |  BJP1  | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Battery type select external     |  BJP1  | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select CGA          |  JP2   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select              |  JP2   | pins 1 & 2 |
   |   | monochrome/EGA/VGA               |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CPU type select AMD/Intel        |  JP22  | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CPU type select Cyrix            |  JP22  | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  TP13  | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  TP14  | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  TP15  | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  TP17  | pins 2 & 3 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  TP25  |     1D     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  TP26  |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  TP27  |     1D     |
   |   | alter                            |        |            |
   |------------------------------------------------------------|
   | Note: The location of jumpers TP17, TP25, TP26 and TP27    |
   | are unidentified.                                          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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        |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |  Size   |        CJ1        |        CJ2        |   CJ3    |
   |---------+-------------------+-------------------+----------|
   |  64KB   | pins 2 & 3 closed | pins 2 & 3 closed |   Open   |
   |---------+-------------------+-------------------+----------|
   |  128KB  | pins 1 & 2 closed |       Open        |  Closed  |
   |---------+-------------------+-------------------+----------|
   |  256KB  | pins 1 & 2 closed | pins 1 & 2 closed |   Open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |     Type     |      CPJ1       |    CPJ2     |    CPJ3     |
   |--------------+-----------------+-------------+-------------|
   |   80486SX    | pins 1 & 2, 3 & | pins 1 & 2  | pins 1 & 2  |
   |    (PQFP)    |    4 closed     |   closed    |   closed    |
   |--------------+-----------------+-------------+-------------|
   |   80486SX    |   pins 2 & 3    | pins 2 & 3  |    Open     |
   |    (PGA)     |     closed      |   closed    |             |
   |--------------+-----------------+-------------+-------------|
   |   80487SX    | pins 1 & 2, 3 & | pins 1 & 2  | pins 1 & 2  |
   |              |    4 closed     |   closed    |   closed    |
   |--------------+-----------------+-------------+-------------|
   |   80486DX    | pins 1 & 2, 3 & | pins 2 & 3  | pins 2 & 3  |
   |              |    4 closed     |   closed    |   closed    |
   |--------------+-----------------+-------------+-------------|
   |   80486DX2   | pins 1 & 2, 3 & | pins 2 & 3  | pins 2 & 3  |
   |              |    4 closed     |   closed    |   closed    |
   |--------------+-----------------+-------------+-------------|
   |   Pentium    | pins 1 & 2, 3 & | pins 1 & 2  | pins 1 & 2  |
   |  Overdrive   |    4 closed     |   closed    |   closed    |
   |------------------------------------------------------------|
   | Note: See also JP22 in User Configurable Settings table.   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   | Speed  |       CS1       |      CS2       |      CS3       |
   |--------+-----------------+----------------+----------------|
   | 20MHz  |   pins 1 & 2    |   pins 1 & 2   |   pins 1 & 2   |
   |        |     closed      |     closed     |     closed     |
   |--------+-----------------+----------------+----------------|
   | 25MHz  |   pins 1 & 2    |   pins 1 & 2   |   pins 2 & 3   |
   |        |     closed      |     closed     |     closed     |
   |--------+-----------------+----------------+----------------|
   | 33MHz  |   pins 2 & 3    |   pins 2 & 3   |   pins 2 & 3   |
   |        |     closed      |     closed     |     closed     |
   |--------+-----------------+----------------+----------------|
   | 40MHz  |   pins 1 & 2    |   pins 2 & 3   |   pins 2 & 3   |
   |        |     closed      |     closed     |     closed     |
   |--------+-----------------+----------------+----------------|
   | 50iMHz |   pins 1 & 2    |   pins 1 & 2   |   pins 2 & 3   |
   |        |     closed      |     closed     |     closed     |
   |--------+-----------------+----------------+----------------|
   | 50MHz  |   pins 2 & 3    |   pins 1 & 2   |   pins 1 & 2   |
   |        |     closed      |     closed     |     closed     |
   |--------+-----------------+----------------+----------------|
   | 66iMHz |   pins 2 & 3    |   pins 2 & 3   |   pins 2 & 3   |
   |        |     closed      |     closed     |     closed     |
   +------------------------------------------------------------+