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

   M54HI, M54HI (REV. 2A)

   Processor    Pentium                                           
   Processor    75/90/100/120MHz                                  
   Speed        
   Chip Set     Unidentified                                      
   Max. Onboard 128MB                                             
   DRAM         
   Cache        256/512KB                                         
   BIOS         Unidentified                                      
   Dimensions   330mm x 218mm                                     
   I/O Options  32-bit PCI slots (4), floppy drive interface, IDE 
                interfaces (2), parallel port, PS/2 mouse port,   
                serial ports (2)                                  
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/M-O/32746-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | IDE interface      |    J6    | Speaker         |   J33    |
   | (secondary)        |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | IDE interface      |    J7    | IDE interface   |   J34    |
   | (primary)          |          | LED             |          |
   |--------------------+----------+-----------------+----------|
   | Parallel port      |   J12    | Power LED &     |   J35    |
   |                    |          | keylock         |          |
   |--------------------+----------+-----------------+----------|
   | Serial port 1      |   J13    | PS/2 mouse port |   J38    |
   |--------------------+----------+-----------------+----------|
   | Serial port 2      |   J14    | Turbo LED       |   J39    |
   |--------------------+----------+-----------------+----------|
   | Floppy drive       |   J15    | 32-bit PCI      |  PC1 -   |
   | interface          |          | slots           |   PC4    |
   |--------------------+----------+-----------------+----------|
   | Reset switch       |   J32    |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Factory configured - do not      |   J1   |    N/A     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J37   |    N/A     |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | BIOS boot block select normal    |  W10   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | BIOS boot block select reversed  |  W10   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Flash BIOS write protect enabled |  W11   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Flash BIOS write protect         |  W11   |   Closed   |
   |   | disabled                         |        |            |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  W12   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  W12   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  W16   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  W16   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | PS/2 mouse not installed         |  W17   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | PS/2 mouse installed             |  W17   |   Closed   |
   |------------------------------------------------------------|
   | Note: The location of J1 is unidentified.                  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |      256KB       |    (4) 32K x 8     |    (4) 32K x 8     |
   |------------------+--------------------+--------------------|
   |      512KB       |    (4) 64K x 8     |    (4) 64K x 8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |       W8        |       W9        |      W24       |
   |-------+-----------------+-----------------+----------------|
   | None  |   pins 1 & 2    |   pins 1 & 2    |      Open      |
   |       |     closed      |     closed      |                |
   |-------+-----------------+-----------------+----------------|
   | 256KB |   pins 2 & 3    |   pins 1 & 2    |   pins 1 & 2   |
   |       |     closed      |     closed      |     closed     |
   |-------+-----------------+-----------------+----------------|
   | 512KB |   pins 1 & 2    |   pins 2 & 3    |   pins 2 & 3   |
   |       |     closed      |     closed      |     closed     |
   |------------------------------------------------------------|
   | Note: The location of W24 is unidentified.                 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CACHE TYPE CONFIGURATION                  |
   |------------------------------------------------------------|
   |     Setting      |         W6         |         W7         |
   |------------------+--------------------+--------------------|
   |  Pipeline burst  | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |   Asynchronous   | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |      Burst       | pins 2 & 3 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |    Speed    |     W4      |     W5     |        W30        |
   |-------------+-------------+------------+-------------------|
   |    75MHz    |   Closed    |   Closed   | pins 1 & 2 closed |
   |-------------+-------------+------------+-------------------|
   |    90MHz    |    Open     |   Closed   | pins 2 & 3 closed |
   |-------------+-------------+------------+-------------------|
   |   100MHz    |   Closed    |    Open    | pins 2 & 3 closed |
   |-------------+-------------+------------+-------------------|
   |   120MHz    |    Open     |   Closed   | pins 2 & 3 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU SPEED RATIO CONFIGURATION                |
   |------------------------------------------------------------|
   |            Speed             |             W2              |
   |------------------------------+-----------------------------|
   |             1.5x             |            Open             |
   |------------------------------+-----------------------------|
   |              2x              |           Closed            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU VRE CONFIGURATION                    |
   |------------------------------------------------------------|
   |            Setting            |             W3             |
   |-------------------------------+----------------------------|
   |              VR               |            Open            |
   |-------------------------------+----------------------------|
   |              VRE              |           Closed           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DMA CONFIGURATION                      |
   |------------------------------------------------------------|
   |       DMA        |        W18         |        W19         |
   |------------------+--------------------+--------------------|
   |       None       |        Open        |        Open        |
   |------------------+--------------------+--------------------|
   |       DMA1       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       DMA3       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+