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

   LPM30 (REV. 3A)

Processor  80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/    
           AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4/ Pentium          
           Overdrive                                                        
Processor  25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz 
Speed      
Chip Set   Micronics                                                        
Max.       128MB                                                            
Onboard    
DRAM       
Cache      128/256KB                                                        
BIOS       Phoenix                                                          
Dimensions 330mm x 218mm                                                    
I/O        Riser card slot, floppy drive interface, game port, IDE          
Options    interfaces (2), parallel port, PS/2 mouse port, serial ports     
           (2), VGA feature connector, VGA port, LAN connector, modem port, 
           audio connector, microphone input, line level input, line level  
           output, speaker port                                             
NPU        None                                                             
Options    

<gopher://bitreich.org/I/th99/m/M-O/32698-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location | Purpose         | Location |
   |--------------------+----------+-----------------+----------|
   | Modem connector    |   CN1    | Turbo switch    |   J23    |
   |--------------------+----------+-----------------+----------|
   | Parallel port      |   CN2    | Reset switch    |   J24    |
   |--------------------+----------+-----------------+----------|
   | LAN connector      |   CN3    | IDE interface   |   J36    |
   |                    |          | LED             |          |
   |--------------------+----------+-----------------+----------|
   | Floppy drive       |   CN4    | PS/2 mouse port |    S1    |
   | interface          |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | IDE interface      |   CN5    | Serial port 1   |    S2    |
   | (secondary)        |          |                 |          |
   |--------------------+----------+-----------------+----------|
   | IDE interface      |   CN6    | Game port       |    S3    |
   | (primary)          |          |                 |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CONNECTIONS (CON'T)                     |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | Serial port 2    |   CN7    | Microphone input  |    S4    |
   |------------------+----------+-------------------+----------|
   | Audio connector  |   CN8    | Line level input  |    S5    |
   |------------------+----------+-------------------+----------|
   | VGA Feature      |   CN9    | Line level output |    S6    |
   | connector        |          |                   |          |
   |------------------+----------+-------------------+----------|
   | Power LED &      |   J19    | Speaker port      |    S7    |
   | keylock          |          |                   |          |
   |------------------+----------+-------------------+----------|
   | Speaker          |   J20    | VGA port          |    S8    |
   | connector        |          |                   |          |
   |------------------+----------+-------------------+----------|
   | Power module     |   J21    | Riser card slot   |  SL1 &   |
   | connector        |          |                   |   SL2    |
   |------------------+----------+-------------------+----------|
   | Turbo LED        |   J22    |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Jumper |   Position   |
   |------------------------------------+--------+--------------|
   |>> | Monitor type select color      |   W1   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Monitor type select monochrome |   W1   |     Open     |
   |---+--------------------------------+--------+--------------|
   |>> | Game port enabled              |   W2   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Game port disabled             |   W2   |     Open     |
   |---+--------------------------------+--------+--------------|
   |>> | On-board sound address select  |   W3   |  pins 1 & 2  |
   |   | 240h                           |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | On-board sound address select  |   W3   |  pins 2 & 3  |
   |   | 220h                           |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | On-board sound enabled         |   W4   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | On-board sound disabled        |   W4   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | IRQ select IRQ5                |   W5   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | IRQ select IRQ7                |   W5   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | On-board sound IRQ select IRQ5 |   W7   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | On-board sound IRQ select IRQ9 |   W7   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | On-board I/O enabled           |  W11   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | On-board I/O disabled          |  W11   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  W13   |  pins 1 & 2  |
   |   | alter                          |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | On-board VGA enabled           |  W14   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | On-board VGA disabled          |  W14   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | RAMDAC enabled                 |  W15   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | RAMDAC disabled/feature        |  W15   |    Closed    |
   |   | enabled                        |        |              |
   |---+--------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  W17   |     Open     |
   |   | alter                          |        |              |
   |---+--------------------------------+--------+--------------|
   |>> | Flash BIOS normal mode         |  W18   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | Flash BIOS programing mode     |  W18   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  W19   | pins 1 & 2,  |
   |   | alter                          |        | 3 & 4 closed |
   |---+--------------------------------+--------+--------------|
   |>> | Buzzer enabled                 |  W20   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Buzzer disabled                |  W20   |     Open     |
   |---+--------------------------------+--------+--------------|
   |>> | DRAM select standard 5v        |  W21   |     Open     |
   |---+--------------------------------+--------+--------------|
   |   | DRAM select micron 12v         |  W21   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |>> | CMOS memory normal operation   |  W25   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | CMOS memory clear              |  W25   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | IDE interface enabled          |  W28   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | IDE interface disabled         |  W28   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |>> | Factory configured - do not    |  W29   |  pins 2 & 3  |
   |   | alter                          |        |    closed    |
   |------------------------------------------------------------|
   | Note: The location of W17 is unidentified.                 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   |  4MB  | (1) 1M x 36 |    NONE    |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  8MB  | (1) 2M x 36 |    NONE    |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   |  8MB  | (1) 1M x 36 |  (1) 1M x  |    NONE    |    NONE    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 12MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |    NONE    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 16MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |  (1) 1M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 16MB  | (1) 4M x 36 |    NONE    |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   | 16MB  | (1) 2M x 36 |  (1) 2M x  |    NONE    |    NONE    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 24MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |    NONE    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 24MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 1M x  |  (1) 1M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (1) 8M x 36 |    NONE    |    NONE    |    NONE    |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (1) 4M x 36 |  (1) 4M x  |    NONE    |    NONE    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 32MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 40MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 1M x  |  (1) 1M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 2M x  |  (1) 2M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |    NONE    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 8M x 36 |  (1) 8M x  |    NONE    |    NONE    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 1M x  |  (1) 1M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 80MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 2M x  |  (1) 2M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |    NONE    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 4M x  |  (1) 4M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 128MB | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     36     |     36     |     36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |   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      |           W39            |      W42       |
   |----------------+--------------------------+----------------|
   |     128KB      | pins 1 & 2, 3 & 4 closed |      Open      |
   |----------------+--------------------------+----------------|
   |     256KB      | pins 2 & 3, 4 & 5 closed |     Closed     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |      Type       |  W22  |  W23  |   W30    |  W31  |  W32  |
   |-----------------+-------+-------+----------+-------+-------|
   |     80486SX     | 2 & 3 | 1 & 2 |  2 & 3   | 2 & 3 | 2 & 3 |
   |-----------------+-------+-------+----------+-------+-------|
   |    SL80486SX    | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |     CX486DX     | 1 & 2 | 2 & 3 | 1 & 2, 3 | 1 & 2 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |     AM486DX     | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |     80486DX     | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |    SL80486DX    | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |    CX486DX2     | 1 & 2 | 2 & 3 | 1 & 2, 3 | 1 & 2 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |    AM486DX2     | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |    80486DX2     | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |  80486DX2(WB)   | 1 & 2 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 1 & 2 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |   SL80486DX2    | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |    AM486DXL4    | 2 & 3 | 1 & 2 | 1 & 2, 3 | Open  | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |    80486DX4     | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
   |                 |       |       |   & 4    |       |       |
   |-----------------+-------+-------+----------+-------+-------|
   |     Pentium     | 1 & 2 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 1 & 2 |
   |    Overdrive    |       |       |   & 4    |       |       |
   |------------------------------------------------------------|
   | Note: Pins designated should be in closed position.        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU TYPE CONFIGURATION (CON'T)               |
   |------------------------------------------------------------|
   |      Type      |  W33   |  W34  |  W35  |   W38    |  W40  |
   |----------------+--------+-------+-------+----------+-------|
   |    80486SX     |  Open  | Open  | Open  |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |   SL80486SX    |  Open  | Open  | 1 & 2 |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |    CX486DX     |  Open  | 1 & 2 | Open  |  3 & 4   | 2 & 3 |
   |----------------+--------+-------+-------+----------+-------|
   |    AM486DX     |  Open  | Open  | Open  | 1 & 2, 3 | 4 & 5 |
   |                |        |       |       |   & 4    |       |
   |----------------+--------+-------+-------+----------+-------|
   |    80486DX     |  Open  | Open  | Open  |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |   SL80486DX    |  Open  | Open  | 1 & 2 |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |    CX486DX2    |  Open  | 1 & 2 | Open  |  3 & 4   | 2 & 3 |
   |----------------+--------+-------+-------+----------+-------|
   |    AM486DX2    |  Open  | Open  | Open  | 1 & 2, 3 | 4 & 5 |
   |                |        |       |       |   & 4    |       |
   |----------------+--------+-------+-------+----------+-------|
   |    80486DX2    |  Open  | Open  | Open  |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |  80486DX2(WB)  | Closed | 1 & 2 | 2 & 3 |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |   SL80486DX2   |  Open  | Open  | 1 & 2 |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |   AM486DXL4    |  Open  | 2 & 3 | Open  | 1 & 2, 3 | 4 & 5 |
   |                |        |       |       |   & 4    |       |
   |----------------+--------+-------+-------+----------+-------|
   |    80486DX4    |  Open  | Open  | Open  |  3 & 4   | 4 & 5 |
   |----------------+--------+-------+-------+----------+-------|
   |    Pentium     |  Open  | Open  | Open  |  2 & 3   | 1 & 2 |
   |   Overdrive    |        |       |       |          |       |
   |------------------------------------------------------------|
   | Note: Pins designated should be in closed position.        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CPU TYPE CONFIGURATION (CON'T)               |
   |------------------------------------------------------------|
   |       Type        |     W41      |  W43   |  W44   |  W45  |
   |-------------------+--------------+--------+--------+-------|
   |      80486SX      |    3 & 4     | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |     SL80486SX     |    3 & 4     | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |      CX486DX      |    2 & 3     | 2 & 3  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |      AM486DX      |     Open     | 1 & 2  | Closed | 1 & 2 |
   |-------------------+--------------+--------+--------+-------|
   |      80486DX      |    3 & 4     | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |     SL80486DX     |    3 & 4     | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |     CX486DX2      |    2 & 3     | 2 & 3  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |     AM486DX2      |     Open     | 1 & 2  | Closed | 1 & 2 |
   |-------------------+--------------+--------+--------+-------|
   |     80486DX2      |    3 & 4     | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |   80486DX2(WB)    | 1 & 2, 3 & 4 | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |    SL80486DX2     |    3 & 4     | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   |     AM486DXL4     |     Open     | 1 & 2  | Closed | Open  |
   |-------------------+--------------+--------+--------+-------|
   |     80486DX4      |    3 & 4     | 1 & 2  |  Open  | Open  |
   |-------------------+--------------+--------+--------+-------|
   | Pentium Overdrive |    3 & 4     | 1 & 2  |  Open  | Open  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in closed position.        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |       Speed        |        W26        |        W27        |
   |--------------------+-------------------+-------------------|
   |       25MHz        |       Open        |       Open        |
   |--------------------+-------------------+-------------------|
   |       33MHz        |       Open        |      Closed       |
   |--------------------+-------------------+-------------------|
   |       40MHz        |      Closed       |       Open        |
   |--------------------+-------------------+-------------------|
   |       50iMHz       |       Open        |       Open        |
   |--------------------+-------------------+-------------------|
   |       66iMHz       |       Open        |      Closed       |
   |--------------------+-------------------+-------------------|
   |       75iMHz       |       Open        |       Open        |
   |--------------------+-------------------+-------------------|
   |      100iMHz       |       Open        |      Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DMA CONFIGURATION                      |
   |------------------------------------------------------------|
   |       DMA        |         W6         |        W10         |
   |------------------+--------------------+--------------------|
   |       None       |        Open        |        Open        |
   |------------------+--------------------+--------------------|
   |       DMA1       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       DMA3       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRQ CONFIGURATION                      |
   |------------------------------------------------------------|
   |       DRQ        |         W8         |         W9         |
   |------------------+--------------------+--------------------|
   |       None       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |       DRQ0       | pins 1 & 2 closed  | pins 2 & 3 closed  |
   |------------------+--------------------+--------------------|
   |       DRQ1       | pins 2 & 3 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       DRQ3       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     VRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |     Size     |        Bank 0        |        Bank 1        |
   |--------------+----------------------+----------------------|
   |     1MB      |    (2) 256K x 16     |         NONE         |
   |--------------+----------------------+----------------------|
   |     2MB      |    (2) 256K x 16     |    (2) 256K x 16     |
   |------------------------------------------------------------|
   | Note: Bank 0 is factory installed and is not configurable. |
   +------------------------------------------------------------+