
MICRONICS COMPUTERS, INC.

JX30WB

Processor  SL80486SX/80486SX/80487SX/CX486M7/AM486DXL/SL80486DX/80486DX/
           SL80486DX2/80486DX2/80486DX4/P24CT/P24D/Pentium Overdrive
Processor  25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Micronics
Max.       128MB
Onboard
DRAM
Cache      128/256/512/1024KB
BIOS       Phoenix
Dimensions 330mm x 218mm
I/O        32-bit VESA local bus slots (2), floppy drive interface, green
Options    PC connector, IDE interfaces (2), parallel port, PS/2 mouse
           interface, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                Location

  PS/2 mouse interface        J1        IDE interface LED         J16

  Auxiliary keyboard          J4        Speaker                   J17
  connector

  External battery            J9        Turbo switch              J18

  Serial port 1               J10       Turbo LED                 J19

  Serial port 2               J11       Power LED & keylock       J20

  Parallel port               J12       Reset switch              J21

  IDE interface               J13       32-bit VESA local      SL1 & SL2
  (primary)                             bus slots

  IDE interface               J14       Green PC connector        W6
  (secondary)

  Floppy drive                J15
  interface

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Flash BIOS normal operation              W1           pins 2 & 3
                                                              closed

      Flash BIOS recovery                      W1           pins 1 & 2
                                                              closed

     Monitor type select color                W2             Closed

      Monitor type select monochrome           W2              Open

     CMOS memory normal operation             W5           pins 1 & 2
                                                              closed

      CMOS memory clear                        W5           pins 2 & 3
                                                              closed

     Primary IDE interface enabled            W7           pins 1 & 2
                                                              closed

      Primary IDE interface disabled           W7           pins 2 & 3
                                                              closed

     Parallel port IRQ select IRQ7            W8           pins 1 & 2
                                                              closed

      Parallel port IRQ select IRQ5            W8           pins 2 & 3
                                                              closed

     Factory configured - do not             W16           pins 2 & 3
      alter                                                   closed

     Factory configured - do not             W29              Open
      alter

     Flash BIOS write protect enabled        W31             Closed

      Flash BIOS write protect                W31              Open
      disabled

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

     4MB        (1) 1M x 36       NONE           NONE          NONE

     8MB        (1) 1M x 36   (1) 1M x 36        NONE          NONE

     16MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     16MB       (1) 2M x 36   (1) 2M x 36        NONE          NONE

     24MB       (1) 2M x 36   (1) 2M x 36    (1) 1M x 36    (1) 1M x 36

     32MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     32MB       (1) 4M x 36   (1) 4M x 36        NONE          NONE

     40MB       (1) 4M x 36   (1) 4M x 36    (1) 1M x 36    (1) 1M x 36

     48MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36    (1) 2M x 36

     64MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 8M x 36   (1) 8M x 36        NONE          NONE

     72MB       (1) 8M x 36   (1) 8M x 36    (1) 1M x 36    (1) 1M x 36

     80MB       (1) 8M x 36   (1) 8M x 36    (1) 2M x 36    (1) 2M x 36

     96MB       (1) 8M x 36   (1) 8M x 36    (1) 4M x 36    (1) 4M x 36

    128MB       (1) 8M x 36   (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

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

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

     512KB       (4) 128K x 8        NONE        (1) 128K x 8

      1MB        (4) 128K x 8    (4) 128K x 8    (1) 128K x 8

                        CACHE JUMPER CONFIGURATION

     Size         W13         W14         W15         W17         W30

    128KB        1 & 2       1 & 2       1 & 2      1 & 2, 3      Open
                                                      & 4

    256KB        2 & 3       2 & 3       1 & 2      2 & 3, 4      Open
                                                      & 5

    512KB        2 & 3       1 & 2       1 & 2      1 & 2, 3     1 & 2
                                                      & 4

     1MB         2 & 3       2 & 3       2 & 3      2 & 3, 4     1 & 2
                                                      & 5

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type             W11           W12           W18           W19

     SL80486SX         2 & 3         Open          Open          2 & 3

      80486SX          2 & 3         Open          Open          2 & 3

      80487SX          2 & 3         1 & 2         Open          2 & 3

  CX486M7 (3.3v)     1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

   CX486M7 (5v)      1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

     AM486DXL        1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

     SL80486DX       1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

      80486DX        1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

    SL80486DX2       1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

     80486DX2        1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

   80486DX4 (2x)     1 & 2, 3 &      2 & 3         2 & 3         2 & 3
                         4

  80486DX4 (2.5x)    1 & 2, 3 &      2 & 3         1 & 2         2 & 3
                         4

   80486DX4 (3x)     1 & 2, 3 &      2 & 3         Open          2 & 3
                         4

       P24CT         1 & 2, 3 &      1 & 2         Open          1 & 2
                         4

       P24D          1 & 2, 3 &      2 & 3         Open          1 & 2
                         4

       P24T          1 & 2, 3 &      1 & 2         Open          1 & 2
                         4

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

       Type           W20        W21         W22        W23        W24

     SL80486SX       2 & 3       Open       1 & 2      1 & 2      2 & 3

      80486SX        2 & 3       Open       Open       1 & 2      2 & 3

      80487SX        2 & 3       Open       Open       1 & 2      2 & 3

  CX486M7 (3.3v)     1 & 2       Open       Open       2 & 3      1 & 2

   CX486M7 (5v)      1 & 2       Open       Open       2 & 3      1 & 2

     AM486DXL        2 & 3       Open       Open       2 & 3      1 & 2

     SL80486DX       2 & 3       Open       1 & 2      1 & 2      2 & 3

      80486DX        2 & 3       Open       Open       1 & 2      2 & 3

    SL80486DX2       2 & 3       Open       1 & 2      1 & 2      2 & 3

     80486DX2        2 & 3       Open       Open       1 & 2      2 & 3

   80486DX4 (2x)     2 & 3       Open       Open       1 & 2      2 & 3

  80486DX4 (2.5x)    2 & 3       Open       Open       1 & 2      2 & 3

   80486DX4 (3x)     2 & 3       Open       Open       1 & 2      2 & 3

       P24CT         2 & 3       Open       Open       1 & 2      1 & 2

       P24D          2 & 3      1 & 2       2 & 3      1 & 2      1 & 2

       P24T          2 & 3       Open       Open       1 & 2      1 & 2

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

       Type             W25           W26           W27           W28

     SL80486SX         2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

      80486SX          2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

      80487SX          2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

  CX486M7 (3.3v)       2 & 3         2 & 3         2 & 3         2 & 3

   CX486M7 (5v)        2 & 3         2 & 3       2 & 3, 4 &      2 & 3
                                                     5

     AM486DXL          2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

     SL80486DX         2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

      80486DX          2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

    SL80486DX2         2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

     80486DX2          2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

   80486DX4 (2x)       2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

  80486DX4 (2.5x)      2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

   80486DX4 (3x)       2 & 3         4 & 5       1 & 2, 3 &      3 & 4
                                                     4

       P24CT           1 & 2         1 & 2       1 & 2, 3 &      3 & 4
                                                     4

       P24D            1 & 2         4 & 5         1 & 2       1 & 2, 3 &
                                                                   4

       P24T            1 & 2         1 & 2         1 & 2         3 & 4

  Note: Pins designated should be in the closed position.

  CPU SPEED CONFIGURATION

    Speed          W10

    25MHz          Open

    33MHz         Closed

    50iMHz         Open

    66iMHz        Closed

    75iMHz         Open

   100iMHz        Closed

                      DMA CONFIGURATION

         DMA                  W3                   W4

      Disabled               Open                 Open

        DMA1           pins 1 & 2 closed   pins 1 & 2 closed

        DMA3           pins 2 & 3 closed   pins 2 & 3 closed

