
MICRONICS COMPUTERS, INC.

LX30WB

Processor  TI486SXL/SL80486SX/80486SX/SL80486DX/CX486M7/80486DX/
           SL80486DX2/80486DX2/80486DX4/P4S/P24S/P24CT/P24D/Pentium Overdrive
Processor  25/33/40/50/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Micronics
Max.       96MB
Onboard
DRAM
Cache      128/256KB
BIOS       Phoenix
Dimensions 330mm x 218mm
I/O        32-bit VESA local bus slots (2), floppy drive interface, IDE
Options    interfaces (2), parallel port, serial ports (2)
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                Location

  Power LED & keylock         J4        IDE interface             J15
                                        (primary)

  Auxiliary keyboard          J8        Speaker                   J16
  connector

  IDE interface               J10       32-bit VESA local      SL1 & SL2
  (secondary)                           bus slots

  Floppy drive                J11       Reset switch              W30
  interface

  Serial port 1               J12       IDE interface LED         W40

  Serial port 2               J13       Turbo switch              W42

  Parallel port               J14       Turbo LED                 W63

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Factory configured - do not             J3               N/A
      alter

     Factory configured - do not             J6               N/A
      alter

     Factory configured - do not             J34              N/A
      alter

     Factory configured - do not             W1               N/A
      alter

     CPU type select all CPU types           W2               Open

      CPU type select SL-series only          W2            pins 1 & 2
                                                              closed

      CPU type select p24d only               W2            pins 2 & 3
                                                              closed

     Factory configured - do not             W3               N/A
      alter

     CPU type select all CPU types           W4               Open

      CPU type select p24d only               W4              Closed

     CPU type select all CPU types           W7          pins 1 & 2, 3 &
                                                             4 closed

      CPU type select P23S or 80486SX         W7            pins 2 & 3
      only                                                    closed

     Factory configured - do not             W20              N/A
      alter

     Factory configured - do not             W21              N/A
      alter

     Monitor type select color               W32             Closed

      Monitor type select monochrome          W32              Open

     Primary IDE interface enabled           W33              Open

      Primary IDE interface disabled          W33             Closed

     Primary IDE controller IRQ              W34           pins 1 & 2
      select IRQ14                                            closed

      Primary IDE controller IRQ              W34           pins 2 & 3
      select IRQ15                                            closed

     Factory configured - do not             W36              N/A
      alter

     Secondary IDE interface enabled         W37           pins 2 & 3
                                                              closed

      Secondary IDE interface disabled        W37           pins 1 & 2
                                                              closed

     Secondary IDE controller IRQ            W41           pins 1 & 2
      select IRQ15                                            closed

      Secondary IDE controller IRQ            W41           pins 2 & 3
      select IRQ14                                            closed

     Factory configured - do not             W44              N/A
      alter

  Note: The locations of jumpers W32 & W37 are unidentified.

                    DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2

      4MB       (1) 1M x 36        NONE          NONE

      8MB       (1) 2M x 36        NONE          NONE

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

     12MB       (1) 1M x 36    (1) 2M x 36       NONE

     12MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     16MB       (1) 4M x 36        NONE          NONE

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

     16MB       (1) 1M x 36    (1) 1M x 36    (1) 2M x 36

     20MB       (1) 1M x 36    (1) 4M x 36       NONE

     20MB       (1) 1M x 36    (1) 2M x 36    (1) 2M x 36

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

     24MB       (1) 2M x 36    (1) 4M x 36       NONE

     24MB       (1) 1M x 36    (1) 1M x 36    (1) 4M x 36

     28MB       (1) 1M x 36    (1) 2M x 36    (1) 4M x 36

                DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1        Bank 2

     32MB       (1) 8M x 36        NONE          NONE

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

     32MB       (1) 2M x 36    (1) 2M x 36    (1) 4M x 36

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

     40MB       (1) 2M x 36    (1) 4M x 36    (1) 4M x 36

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

     48MB       (1) 4M x 36    (1) 8M x 36       NONE

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

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 8M x 36

     80MB       (1) 4M x 36    (1) 8M x 36    (1) 8M x 36

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

                      CACHE CONFIGURATION

        Size                Bank 0               Bank 1

        128KB            (5) 32K x 8              NONE

        256KB            (5) 32K x 8          (5) 32K x 8

  Note: Bank 0 is factory installed and is not configurable.

                        CACHE JUMPER CONFIGURATION

    Size           W25            W26            W27             W28

    128KB       pins 1 & 2     pins 1 & 2     pins 1 & 2      pins 1 & 2
                 closed          closed         closed         closed

    256KB       pins 2 & 3     pins 2 & 3     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

                          CPU TYPE CONFIGURATION

       Type           W6          W8         W9         W10        W11

     TI486SXL         N/A        N/A         N/A        N/A        N/A

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

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

     CX486M7         2 & 3      2 & 3       2 & 3      2 & 3      2 & 3

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

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

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

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

     80486DX4        4 & 5      2 & 3       1 & 2      2 & 3      3 & 4

       P4S            N/A        N/A         N/A        N/A        N/A

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

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

       P24S           N/A        N/A         N/A        N/A        N/A

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

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

      Type            W12            W14           W17           W18

    TI486SXL          N/A         pins 1 & 2       N/A           N/A
                                   closed

    SL80486SX      pins 2 & 3       Open        pins 2 & 3    pins 1 & 2
                     closed                      closed         closed

     80486SX       pins 2 & 3       Open        pins 2 & 3    pins 1 & 2
                     closed                      closed         closed

     CX486M7       pins 1 & 2     pins 3 & 4    pins 1 & 2    pins 2 & 3
                     closed        closed        closed         closed

    SL80486DX      pins 2 & 3     pins 3 & 4    pins 2 & 3    pins 1 & 2
                     closed        closed        closed         closed

     80486DX       pins 2 & 3     pins 3 & 4    pins 2 & 3    pins 1 & 2
                     closed        closed        closed         closed

   SL80486DX2      pins 2 & 3     pins 3 & 4    pins 2 & 3    pins 1 & 2
                     closed        closed        closed         closed

    80486DX2       pins 2 & 3     pins 3 & 4    pins 2 & 3    pins 1 & 2
                     closed        closed        closed         closed

    80486DX4       pins 2 & 3     pins 3 & 4    pins 2 & 3    pins 1 & 2
                     closed        closed        closed         closed

       P4S            N/A         pins 3 & 4       N/A           N/A
                                   closed

      P24CT        pins 2 & 3     pins 2 & 3    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

      P24D         pins 2 & 3     pins 3 & 4    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

      P24S            N/A         pins 3 & 4       N/A           N/A
                                   closed

      P24T         pins 2 & 3     pins 2 & 3    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

    CPU SPEED CONFIGURATION

   Speed      w15        w16

   25MHz      Open      Open

   33MHz     Closed    Closed

   40MHz      Open     Closed

  50iMHz      Open      Open

   50MHz     Closed     Open

  66iMHz     Closed    Closed

  75iMHz      Open      Open

  100iMHz    Closed    Closed

  CPU SPEED CONFIGURATION (80486DX4 ONLY)

        Speed                  W13

          2x            pins 2 & 3 closed

         2.5x           pins 1 & 2 closed

          3x                   Open

