
ADVANCED LOGIC RESEARCH, INC.

EXPRESS

Processor        80486SX/80487SX/80486DX/80486DX2
Processor Speed  25/33/40/50(internal)/66(internal)MHz
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

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  VGA port                   CN1       VGA feature connector      CN8

  Parallel port              CN2       IDE interface LED           J1

  Serial port 2              CN3       Power LED & keylock         J2

  Serial port 1              CN4       Speaker                     J3

  PS/2 mouse port            CN5       Reset switch                J4

  IDE interface              CN6       32-bit VESA Local bus      SL1
                                       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              W5              Open
      alter

     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             W19              Open
      alter

     Factory configured - do not             W28              Open
      alter

     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        Open           Open
    (PQFP)                        closed

    80486SX         Open        pins 1 & 2        Open          Closed
     (PGA)                        closed

    80487SX        Closed       pins 1 & 2     pins 2 & 3       Closed
     (PGA)                        closed         closed

    80486DX        Closed       pins 2 & 3        Open           Open
    (PQFP)                        closed

    80486DX        Closed       pins 1 & 2     pins 1 & 2       Closed
     (PGA)                        closed         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

