ADVANCED INTEGRATION RESEARCH, INC.
===================================

   54CSH REV. 1.01

   Processor         Pentium                                      
   Processor Speed   75/90/100MHz                                 
   Chip Set          SIS                                          
   Max. Onboard DRAM 128MB                                        
   Cache             256/512/1024KB                               
   BIOS              AMI                                          
   Dimensions        330mm x 218mm                                
   I/O Options       32-bit PCI slots (4)                         
   NPU Options       None                                         

<gopher://bitreich.org/I/th99/m/A-B/32823-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   JC2    | Turbo switch     |   JC6    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Speaker           |   JC3    | Turbo LED        |   JC7    |
   |-------------------+----------+------------------+----------|
   | Reset switch      |   JC4    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JC1   |    N/A     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select              |  JS2   |    Open    |
   |   | monochrome/EGA/VGA               |        |            |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select CGA          |  JS2   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Flash BIOS write protect enabled |  JS3   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Flash BIOS write protect         |  JS3   | pins 2 & 3 |
   |   | disabled                         |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JS4   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JS4   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JS6   |    N/A     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JS10  | pins 2 & 3 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JS11  | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JS12  | pins 1 & 2 |
   |   | alter                            |        |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       2MB        |   (2) 256K x 36    |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |   (2) 256K x 36    |   (2) 256K x 36    |
   |------------------+--------------------+--------------------|
   |       4MB        |   (2) 512K x 36    |        NONE        |
   |------------------+--------------------+--------------------|
   |       8MB        |   (2) 512K x 36    |   (2) 512K x 36    |
   |------------------+--------------------+--------------------|
   |       8MB        |    (2) 1M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       12MB       |   (2) 512K x 36    |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 1M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 2M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       20MB       |   (2) 512K x 36    |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 2M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 4M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       36MB       |   (2) 512K x 36    |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (2) 1M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (2) 2M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 4M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 8M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       80MB       |    (2) 2M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (2) 8M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (2) 16M x 36    |        NONE        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   |            Size            |              JS5              |
   |----------------------------+-------------------------------|
   |            2MB             |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            4MB             |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            4MB             |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            8MB             |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            8MB             |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            12MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            16MB            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            16MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            20MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            32MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            32MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            36MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            40MB            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            48MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            64MB            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            64MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |            80MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |           128MB            |       pins 2 & 3 closed       |
   |----------------------------+-------------------------------|
   |           128MB            |       pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |    Bank 0    |   Bank 1   |   TAG 0    |   TAG 1   |
   |-------+--------------+------------+------------+-----------|
   | 256KB | (4) 32K x 8  | (4) 32K x  | (1) 8K x 8 | (1) 32K x |
   |       |              |     8      |            |     8     |
   |-------+--------------+------------+------------+-----------|
   | 512KB | (4) 64K x 8  | (4) 64K x  | (1) 16K x  | (1) 32K x |
   |       |              |     8      |     8      |     8     |
   |-------+--------------+------------+------------+-----------|
   |  1MB  | (4) 128K x 8 | (4) 128K x | (1) 32K x  | (1) 32K x |
   |       |              |     8      |     8      |     8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size       |        JS13        |        JS14        |
   |------------------+--------------------+--------------------|
   |      256KB       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      512KB       | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |       1MB        | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |     Speed     |     JS7      |     JS8      |     JS9      |
   |---------------+--------------+--------------+--------------|
   |     75MHz     |    Closed    |     Open     |     Open     |
   |---------------+--------------+--------------+--------------|
   |     90MHz     |     Open     |    Closed    |     Open     |
   |---------------+--------------+--------------+--------------|
   |    100MHz     |     Open     |    Closed    |    Closed    |
   +------------------------------------------------------------+