ADVANCED LOGIC RESEARCH, INC.
=============================

   EXPRESS

   Processor    80486SX/80487SX/80486DX/80486DX2                  
   Processor    25/33/40/50(internal)/66(internal)MHz             
   Speed        
   Chip Set     ALR                                               
   Max. Onboard 36MB                                              
   DRAM         
   Cache        128/256KB                                         
   BIOS         Phoenix                                           
   Dimensions   330mm x 218mm                                     
   I/O Options  32-bit VESA local bus slot, floppy drive          
                interface, IDE interface, parallel port, PS/2     
                mouse port, serial ports (2), VGA feature         
                connector, VGA port                               
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/A-B/32146-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | VGA port         |   CN1    | VGA feature       |   CN8    |
   |                  |          | connector         |          |
   |------------------+----------+-------------------+----------|
   | Parallel port    |   CN2    | IDE interface LED |    J1    |
   |------------------+----------+-------------------+----------|
   | Serial port 2    |   CN3    | Power LED &       |    J2    |
   |                  |          | keylock           |          |
   |------------------+----------+-------------------+----------|
   | Serial port 1    |   CN4    | Speaker           |    J3    |
   |------------------+----------+-------------------+----------|
   | PS/2 mouse port  |   CN5    | Reset switch      |    J4    |
   |------------------+----------+-------------------+----------|
   | IDE interface    |   CN6    | 32-bit VESA Local |   SL1    |
   |                  |          | bus slot          |          |
   |------------------+----------+-------------------+----------|
   | Floppy drive     |   CN7    |                   |          |
   | interface        |          |                   |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Jumper  | Position |
   |---------------------------------------+---------+----------|
   |>> | CMOS memory normal operation      |   JP3   |   Open   |
   |---+-----------------------------------+---------+----------|
   |   | CMOS memory clear                 |   JP3   |  Closed  |
   |---+-----------------------------------+---------+----------|
   |>> | Port select 210H                  |   W1    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | Port select 310H                  |   W1    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | On board VGA enabled              |   W2    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | On board VGA disabled             |   W2    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Factory configured - do not alter |   W5    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | SIMM type select single           |   W6    |   Open   |
   |---+-----------------------------------+---------+----------|
   |   | SIMM type select double           |   W6    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |>> | Video mode select standard        |   W7    |   Open   |
   |---+-----------------------------------+---------+----------|
   |   | Video mode select VESA            |   W7    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |>> | Video type select non interlaced  |   W8    |   Open   |
   |---+-----------------------------------+---------+----------|
   |   | Video type select interlaced      |   W8    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |>> | Monitor type select color         |   W9    |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | Monitor type select monochrome    |   W9    |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Factory configured - do not alter |   W19   |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | Factory configured - do not alter |   W28   |   Open   |
   |---+-----------------------------------+---------+----------|
   |>> | 80486 CPU installed               |   W29   |  Closed  |
   |---+-----------------------------------+---------+----------|
   |   | 80486 CPU not installed           |   W29   |   Open   |
   |------------------------------------------------------------|
   | Note: The location of W5 is unknown.                       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |  Size   |     Bank 0      |     Bank 1     |    Bank 2     |
   |---------+-----------------+----------------+---------------|
   |   4MB   |  (8) 512K x 8   |      NONE      |     NONE      |
   |---------+-----------------+----------------+---------------|
   |   8MB   |  (8) 512K x 8   |  (1) 1M x 36   |     NONE      |
   |---------+-----------------+----------------+---------------|
   |  12MB   |  (8) 512K x 8   |  (1) 1M x 36   |  (1) 1M x 36  |
   |---------+-----------------+----------------+---------------|
   |  20MB   |  (8) 512K x 8   |  (1) 4M x 36   |     NONE      |
   |---------+-----------------+----------------+---------------|
   |  24MB   |  (8) 512K x 8   |  (1) 1M x 36   |  (1) 4M x 36  |
   |---------+-----------------+----------------+---------------|
   |  36MB   |  (8) 512K x 8   |  (1) 4M x 36   |  (1) 4M x 36  |
   |------------------------------------------------------------|
   | Note: Bank 0 is factory installed and is not configurable. |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    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  |       W13       |      W16       |  W17   |  W18   |
   |-------+-----------------+----------------+--------+--------|
   | 128KB |   pins 2 & 3    |   pins 1 & 2   |  Open  | Closed |
   |       |     closed      |     closed     |        |        |
   |-------+-----------------+----------------+--------+--------|
   | 256KB |   pins 1 & 2    |   pins 2 & 3   | Closed | Closed |
   |       |     closed      |     closed     |        |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU TYPE CONFIGURATION                   |
   |------------------------------------------------------------|
   |  Type   |  W11   |        W12        |    W24     |  W27   |
   |---------+--------+-------------------+------------+--------|
   | 80486SX | Closed | pins 2 & 3 closed |    Open    |  Open  |
   | (PQFP)  |        |                   |            |        |
   |---------+--------+-------------------+------------+--------|
   | 80486SX |  Open  | pins 1 & 2 closed |    Open    | Closed |
   |  (PGA)  |        |                   |            |        |
   |---------+--------+-------------------+------------+--------|
   | 80487SX | Closed | pins 1 & 2 closed | pins 2 & 3 | Closed |
   |  (PGA)  |        |                   |   closed   |        |
   |---------+--------+-------------------+------------+--------|
   | 80486DX | Closed | pins 2 & 3 closed |    Open    |  Open  |
   | (PQFP)  |        |                   |            |        |
   |---------+--------+-------------------+------------+--------|
   | 80486DX | Closed | pins 1 & 2 closed | pins 1 & 2 | Closed |
   |  (PGA)  |        |                   |   closed   |        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |   Speed    |   W20    |    W21     |    W22    |    W23    |
   |------------+----------+------------+-----------+-----------|
   |   25MHz    |   Open   |   Closed   |   Open    |  Closed   |
   |------------+----------+------------+-----------+-----------|
   |   33MHz    |   Open   |    Open    |  Closed   |  Closed   |
   |------------+----------+------------+-----------+-----------|
   |   40MHz    |   Open   |   Closed   |   Open    |   Open    |
   |------------+----------+------------+-----------+-----------|
   |   50iMHz   |   Open   |   Closed   |   Open    |  Closed   |
   |------------+----------+------------+-----------+-----------|
   |   66iMHz   |   Open   |    Open    |  Closed   |  Closed   |
   +------------------------------------------------------------+