MICRONICS COMPUTERS, INC.
=========================

   M54LI (REV. 1B)

   Processor    Pentium                                           
   Processor    75/90/100/120/133MHz                              
   Speed        
   Chip Set     SIS                                               
   Max. Onboard 128MB                                             
   DRAM         
   Cache        256/512KB                                         
   BIOS         Phoenix                                           
   Dimensions   330mm x 218mm                                     
   I/O Options  PS/2 mouse interface, parallel port, serial ports 
                (2), 32-bit PCI slots (3), floppy drive           
                interface, IDE interfaces (2)                     
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/M-O/32993-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | Speaker           |    J2    | Serial port 2    |   J34    |
   |-------------------+----------+------------------+----------|
   | Reset switch      |   J12    | Parallel port    |   J35    |
   |-------------------+----------+------------------+----------|
   | Power LED &       |   J14    | IDE interface 1  |   J36    |
   | keylock           |          |                  |          |
   |-------------------+----------+------------------+----------|
   | PS/2 mouse        |   J16    | IDE interface    |   J41    |
   | interface         |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |   J23    | 32-bit PCI slots |  PC1 -   |
   |                   |          |                  |   PC3    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   J32    | Turbo LED        |   W43    |
   | interface         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |   J33    |                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function             | Jumper |    Position    |
   |----------------------------------+--------+----------------|
   |>> | CMOS memory normal operation |  W18   |      Open      |
   |---+------------------------------+--------+----------------|
   |   | CMOS memory clear            |  W18   |     Closed     |
   |---+------------------------------+--------+----------------|
   |>> | BIOS normal operation        |  W21   |   pins 1 & 2   |
   |   |                              |        |     closed     |
   |---+------------------------------+--------+----------------|
   |   | BIOS recovery mode           |  W21   |   pins 2 & 3   |
   |   |                              |        |     closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       8MB        |    (2) 1M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 1M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 2M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       24MB       |    (2) 2M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 4M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 2M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (2) 4M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (2) 4M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 8M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 4M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (2) 8M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (2) 8M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       96MB       |    (2) 8M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (2) 8M x 36     |    (2) 8M x 36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |        TAG         |
   |------------------+--------------------+--------------------|
   |      256KB       |    (8) 32K x 8     |    (2) 32K x 8     |
   |------------------+--------------------+--------------------|
   |      512KB       |    (8) 64K x 8     |    (2) 32K x 8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |        Size        |         W2         |        W3        |
   |--------------------+--------------------+------------------|
   |       256KB        |        Open        |       Open       |
   |--------------------+--------------------+------------------|
   |       512KB        |       Closed       |       Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CACHE VOLTAGE CONFIGURATION                 |
   |------------------------------------------------------------|
   |     Voltage      |        RP55        |        RP56        |
   |------------------+--------------------+--------------------|
   |       3.3v       |   Not installed    |     Installed      |
   |------------------+--------------------+--------------------|
   |        5v        |     Installed      |   Not installed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |   Speed    |    W4     |    W14    |    W15    |    W16    |
   |------------+-----------+-----------+-----------+-----------|
   |   75MHz    |   Open    |  Closed   |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |   90MHz    |   Open    |  Closed   |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |   100MHz   |   Open    |   Open    |  Closed   |   Open    |
   |------------+-----------+-----------+-----------+-----------|
   |   120MHz   |  Closed   |  Closed   |   Open    |  Closed   |
   |------------+-----------+-----------+-----------+-----------|
   |   133MHz   |  Closed   |   Open    |  Closed   |   Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DMA CONFIGURATION                      |
   |------------------------------------------------------------|
   |       DMA        |        W11         |        W12         |
   |------------------+--------------------+--------------------|
   |      DMA 1       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      DMA 3       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+