
MICRONICS COMPUTERS, INC.

LPM30 (REV. 3A)

Processor  80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/
           AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4/ Pentium
           Overdrive
Processor  25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Micronics
Max.       128MB
Onboard
DRAM
Cache      128/256KB
BIOS       Phoenix
Dimensions 330mm x 218mm
I/O        Riser card slot, floppy drive interface, game port, IDE
Options    interfaces (2), parallel port, PS/2 mouse port, serial ports
           (2), VGA feature connector, VGA port, LAN connector, modem port,
           audio connector, microphone input, line level input, line level
           output, speaker port
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                 Location

  Modem connector             CN1       Turbo switch               J23

  Parallel port               CN2       Reset switch               J24

  LAN connector               CN3       IDE interface LED          J36

  Floppy drive interface      CN4       PS/2 mouse port            S1

  IDE interface               CN5       Serial port 1              S2
  (secondary)

  IDE interface (primary)     CN6       Game port                  S3

                            CONNECTIONS (CONT)

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN7       Microphone input            S4

  Audio connector            CN8       Line level input            S5

  VGA Feature connector      CN9       Line level output           S6

  Power LED & keylock        J19       Speaker port                S7

  Speaker connector          J20       VGA port                    S8

  Power module connector     J21       Riser card slot          SL1 & SL2

  Turbo LED                  J22

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

     Monitor type select color                 W1            Closed

      Monitor type select monochrome            W1             Open

     Game port enabled                         W2            Closed

      Game port disabled                        W2             Open

     On-board sound address select 240h        W3           pins 1 & 2
                                                              closed

      On-board sound address select 220h        W3           pins 2 & 3
                                                              closed

     On-board sound enabled                    W4             Open

      On-board sound disabled                   W4            Closed

     IRQ select IRQ5                           W5           pins 2 & 3
                                                              closed

      IRQ select IRQ7                           W5           pins 1 & 2
                                                              closed

     On-board sound IRQ select IRQ5            W7           pins 1 & 2
                                                              closed

      On-board sound IRQ select IRQ9            W7           pins 2 & 3
                                                              closed

     On-board I/O enabled                      W11            Open

      On-board I/O disabled                     W11           Closed

     Factory configured - do not alter         W13          pins 1 & 2
                                                              closed

     On-board VGA enabled                      W14            Open

      On-board VGA disabled                     W14           Closed

     RAMDAC enabled                            W15            Open

      RAMDAC disabled/feature enabled           W15           Closed

     Factory configured - do not alter         W17            Open

     Flash BIOS normal mode                    W18            Open

      Flash BIOS programing mode                W18           Closed

     Factory configured - do not alter         W19       pins 1 & 2, 3 &
                                                             4 closed

     Buzzer enabled                            W20           Closed

      Buzzer disabled                           W20            Open

     DRAM select standard 5v                   W21            Open

      DRAM select micron 12v                    W21           Closed

     CMOS memory normal operation              W25          pins 1 & 2
                                                              closed

      CMOS memory clear                         W25          pins 2 & 3
                                                              closed

     IDE interface enabled                     W28          pins 1 & 2
                                                              closed

      IDE interface disabled                    W28          pins 2 & 3
                                                              closed

     Factory configured - do not alter         W29          pins 2 & 3
                                                              closed

  Note: The location of W17 is unidentified.

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

     8MB        (1) 2M x 36       NONE           NONE          NONE

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

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

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

     16MB       (1) 4M x 36       NONE           NONE          NONE

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

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

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

     32MB       (1) 8M x 36       NONE           NONE          NONE

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

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

     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

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

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

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

     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) 8M x 36       NONE

     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) 8K x 8

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

                        CACHE JUMPER CONFIGURATION

          Size                     W39                      W42

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

         256KB              pins 2 & 3, 4 & 5              Closed
                                 closed

                          CPU TYPE CONFIGURATION

        Type            W22       W23        W30        W31        W32

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

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

      CX486DX          1 & 2     2 & 3      1 & 2,     1 & 2      2 & 3
                                            3 & 4

      AM486DX          2 & 3     1 & 2      1 & 2,     2 & 3      2 & 3
                                            3 & 4

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

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

      CX486DX2         1 & 2     2 & 3      1 & 2,     1 & 2      2 & 3
                                            3 & 4

      AM486DX2         2 & 3     1 & 2      1 & 2,     2 & 3      2 & 3
                                            3 & 4

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

    80486DX2(WB)       1 & 2     1 & 2      1 & 2,     2 & 3      1 & 2
                                            3 & 4

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

     AM486DXL4         2 & 3     1 & 2      1 & 2,     Open       2 & 3
                                            3 & 4

      80486DX4         2 & 3     1 & 2      1 & 2,     2 & 3      2 & 3
                                            3 & 4

  Pentium Overdrive    1 & 2     1 & 2      1 & 2,     2 & 3      1 & 2
                                            3 & 4

  Note: Pins designated should be in closed position.

                      CPU TYPE CONFIGURATION (CONT)

        Type            W33         W34        W35       W38        W40

      80486SX           Open        Open      Open      3 & 4      4 & 5

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

      CX486DX           Open       1 & 2      Open      3 & 4      2 & 3

      AM486DX           Open        Open      Open      1 & 2,     4 & 5
                                                        3 & 4

      80486DX           Open        Open      Open      3 & 4      4 & 5

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

      CX486DX2          Open       1 & 2      Open      3 & 4      2 & 3

      AM486DX2          Open        Open      Open      1 & 2,     4 & 5
                                                        3 & 4

      80486DX2          Open        Open      Open      3 & 4      4 & 5

    80486DX2(WB)       Closed      1 & 2      2 & 3     3 & 4      4 & 5

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

     AM486DXL4          Open       2 & 3      Open      1 & 2,     4 & 5
                                                        3 & 4

      80486DX4          Open        Open      Open      3 & 4      4 & 5

       Pentium          Open        Open      Open      2 & 3      1 & 2
     Overdrive

  Note: Pins designated should be in closed position.

                      CPU TYPE CONFIGURATION (CONT)

        Type              W41         W43           W44           W45

       80486SX           3 & 4       1 & 2         Open           Open

      SL80486SX          3 & 4       1 & 2         Open           Open

       CX486DX           2 & 3       2 & 3         Open           Open

       AM486DX           Open        1 & 2        Closed         1 & 2

       80486DX           3 & 4       1 & 2         Open           Open

      SL80486DX          3 & 4       1 & 2         Open           Open

      CX486DX2           2 & 3       2 & 3         Open           Open

      AM486DX2           Open        1 & 2        Closed         1 & 2

      80486DX2           3 & 4       1 & 2         Open           Open

    80486DX2(WB)       1 & 2, 3 &    1 & 2         Open           Open
                           4

     SL80486DX2          3 & 4       1 & 2         Open           Open

      AM486DXL4          Open        1 & 2        Closed          Open

      80486DX4           3 & 4       1 & 2         Open           Open

  Pentium Overdrive      3 & 4       1 & 2         Open           Open

  Note: Pins designated should be in closed position.

    CPU SPEED CONFIGURATION

   Speed      W26        W27

   25MHz      Open      Open

   33MHz      Open     Closed

   40MHz     Closed     Open

  50iMHz      Open      Open

  66iMHz      Open     Closed

  75iMHz      Open      Open

  100iMHz     Open     Closed

                      DMA CONFIGURATION

         DMA                  W6                  W10

        None                 Open                 Open

        DMA1           pins 1 & 2 closed   pins 1 & 2 closed

        DMA3           pins 2 & 3 closed   pins 2 & 3 closed

                      DRQ CONFIGURATION

         DRQ                  W8                   W9

        None           pins 2 & 3 closed   pins 2 & 3 closed

        DRQ0           pins 1 & 2 closed   pins 2 & 3 closed

        DRQ1           pins 2 & 3 closed   pins 1 & 2 closed

        DRQ3           pins 1 & 2 closed   pins 1 & 2 closed

                      VRAM CONFIGURATION

        Size                Bank 0               Bank 1

         1MB            (2) 256K x 16             NONE

         2MB            (2) 256K x 16        (2) 256K x 16

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

