
MICRO EXPRESS, INC.

FOREX 386/486

Processor         80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2
Processor Speed   20/25/33/40/50(internal)/66(internal)MHz
Chip Set          Forex
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            JP2       Turbo switch              JP15

  Reset switch                JP8       Turbo LED                 JP16

  Power LED & keylock         JP14      Speaker                   JP17

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Parity check enabled                     JP5            Closed

      Parity check disabled                    JP5             Open

      Monitor type select color                JP6             Open

      Monitor type select monochrome           JP6            Closed

     Factory configured - do not alter       JP19              N/A

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 1M x 9      (4) 4M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

                         CACHE CONFIGURATION

   Size        Bank 0         Bank 1       TAG (U26)      TAG (U42)

   64KB      (4) 8K x 8     (4) 8K x 8     (1) 8K x 8       NONE

   128KB     (4) 32K x 8       NONE        (1) 8K x 8       NONE

   256KB     (4) 32K x 8    (4) 32K x 8    (1) 8K x 8    (1) 8K x 8

                  CACHE JUMPER CONFIGURATION

  Size     JP8A     JP8B     JP8C     JP8D     JP8E    JP8F

  64KB     2 & 3   2 & 3    1 & 2    2 & 3    2 & 3    1 & 2

  128KB    1 & 2   2 & 3    1 & 2    1 & 2    1 & 2    1 & 2

  256KB    2 & 3   1 & 2    2 & 3    2 & 3    1 & 2    2 & 3

  Note:Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

              Type                                W1 & W2

             80386DX               2 & 3, 5 & 6, 8 & 9,11 & 12, 14 & 15,
                                           17 & 18, and 20 & 21

            80486DLC               1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                           16 & 17, and 19 & 20

             80486SX               1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                           16 & 17, and 19 & 20

             80487SX               1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                           16 & 17, and 19 & 20

             80486DX               1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                           16 & 17, and 19 & 20

            80486DX2               1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                           16 & 17, and 19 & 20

  Notes:Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

       Type               JP12              JP13               JP30

      80386DX             N/A                N/A               N/A

     80486DLC          pins 1 & 2         pins 1 & 2        pins 1 & 2
                         closed            closed             closed

      80486SX          pins 2 & 3         pins 2 & 3           N/A
                         closed            closed

      80487SX          pins 1 & 2         pins 1 & 2        pins 2 & 3
                         closed            closed             closed

      80486DX          pins 1 & 2         pins 1 & 2        pins 1 & 2
                         closed            closed             closed

     80486DX2          pins 1 & 2         pins 1 & 2        pins 1 & 2
                         closed            closed             closed

