
MICRONICS COMPUTERS, INC.

80486 ASIC EISA 50MHz

Processor         80486DX
Processor Speed   50MHz
Chip Set          Micronics
Max. Onboard DRAM 64MB
Cache             64/256KB
BIOS              Phoenix
Dimensions        355mm x 302mm
I/O Options       32-bit local bus video card slot
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                 Location

  Serial port 1                J3       Speaker                   J20

  External keyboard           J12       Power LED & keylock       J21

  Parallel port               J14       Reset switch              W13

  Serial port 2               J16       Turbo switch              W15

  Floppy drive interface      J17       Turbo LED                 W16

  External battery            J18       32-bit local bus           S1
                                        video card

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     Factory configured - do not            W1              pins 1 & 2
      alter                                                    closed

     Floppy drive interface                 W3              pins 1 & 2
      enabled                                                  closed

      Floppy drive interface                 W3              pins 2 & 3
      disabled                                                 closed

     Factory configured - do not            W5              pins 2 & 3
      alter                                                    closed

     Factory configured - do not            W6              pins 1 & 2
      alter                                                    closed

     Factory configured - do not            W9              pins 2 & 3
      alter                                                    closed

     Factory configured - do not            W10             pins 1 & 2
      alter                                                    closed

     Factory configured - do not            W11             pins 1 & 2
      alter                                                    closed

     Factory configured - do not            W12             pins 1 & 2
      alter                                                    closed

     Factory configured - do not           SW1/6                On
      alter

     Factory configured - do not           SW1/7               Off
      alter

     Monitor type select color             SW1/8                On

      Monitor type select                   SW1/8               Off
      monochrome

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (4) 256K x 9      NONE           NONE           NONE

     2MB        (4) 256K x 9   (4) 256K x 9      NONE           NONE

     3MB        (4) 256K x 9   (4) 256K x 9   (4) 256K x 9      NONE

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

     4MB        (4) 1M x 9        NONE           NONE           NONE

     5MB        (4) 256K x 9   (4) 1 M x 9       NONE           NONE

     6MB        (4) 256K x 9   (4) 256K x 9   (4) 1M x 9        NONE

     7MB        (4) 256K x 9   (4) 256K x 9   (4) 256K x 9   (4) 1M x 9

     8MB        (4) 1M x 9     (4) 1M x 9        NONE           NONE

     9MB        (4) 256K x 9   (4) 1M x 9     (4) 1M x 9        NONE

     10MB       (4) 256K x 9   (4) 256K x 9   (4) 1M x 9     (4) 1M x 9

     12MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9        NONE

     13MB       (4) 256K x 9   (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

     16MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

     16MB       (4) 4M x 9        NONE           NONE           NONE

     20MB       (4) 1M x 9     (4) 4M x 9        NONE           NONE

     24MB       (4) 1M x 9     (4) 1M x 9     (4) 4M x 9        NONE

     28MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9     (4) 4M x 9

                     DRAM CONFIGURATION (CONT)

    Size         Bank 0       Bank 1        Bank 2        Bank 3

    32MB       (4) 4M x 9   (4) 4M x 9       NONE          NONE

    36MB       (4) 1M x 9   (4) 4M x 9    (4) 4M x 9       NONE

    40MB       (4) 1M x 9   (4) 1M x 9    (4) 4M x 9    (4) 4M x 9

    48MB       (4) 4M x 9   (4) 4M x 9    (4) 4M x 9       NONE

    52MB       (4) 1M x 9   (4) 4M x 9    (4) 4M x 9    (4) 4M x 9

    64MB       (4) 4M x 9   (4) 4M x 9    (4) 4M x 9    (4) 4M x 9

                         DRAM JUMPER CONFIGURATION

    Size        SW1/1       SW1/2        SW1/3        SW1/4       SW1/5

    1MB          On           On          On           On          On

    2MB          Off          On          On           On          On

    3MB          On          Off          On           On          On

   4MB 1         Off         Off          On           On          On

   4MB 2         On           On          Off          On          On

    5MB          On           On          Off          Off         On

    6MB          On          Off          On           Off         On

    7MB          Off          On          On           Off         On

    8MB          Off          On          Off          On          On

    9MB          On          Off          Off          Off         On

    10MB         Off         Off          On           Off         On

    12MB         On          Off          Off          On          On

    13MB         Off         Off          Off          Off         On

   16MB 1        Off         Off          Off          On          On

   16MB 3        On           On          Off          On          Off

    20MB         On           On          Off          Off         Off

    24MB         On          Off          On           Off         Off

    28MB         Off          On          On           Off         Off

    32MB         Off          On          Off          On          Off

    36MB         On          Off          Off          Off         Off

    40MB         Off         Off          On           Off         Off

    48MB         On          Off          Off          On          Off

    52MB         Off         Off          Off          Off         Off

    64MB         Off         Off          Off          On          Off

  Note 1 :Use this setting when banks are populated with (4) 256K x 9
  SIMMs.

  Note 2 :Use this setting when banks are populated with (4) 1M x 9
  SIMMs.

  Note 3 :Use this setting when banks are populated with (4) 4M x 9
  SIMMs.

     CACHE CONFIGURATION

     Size          Cache

     64KB        (8) 8K x 8

     256KB      (8) 32K x 8

                        CACHE JUMPER CONFIGURATION

    Size           W14            W17            W18             W19

    64KB        pins 2 & 3        Open           Open           Open
                 closed

    256KB       pins 1 & 2     pins 1 & 2     pins 1 & 2      pins 1 & 2
                 closed          closed         closed         closed

                 PARALLEL PORT CONFIGURATION

       Setting                W4                   W7

        LPT1           pins 1 & 2 closed   pins 2 & 3 closed

        LPT2           pins 1 & 2 closed   pins 1 & 2 closed

        LPT3           pins 2 & 3 closed   pins 1 & 2 closed

      Disabled         pins 2 & 3 closed   pins 2 & 3 closed

                         SERIAL PORT CONFIGURATION

         Setting                     W2                      W8

   COM1 & COM2 enabled       pins 1 & 2 closed       pins 1 & 2 closed

    COM1 enabled & COM2      pins 1 & 2 closed       pins 2 & 3 closed
         disabled

   COM1 disabled & COM2      pins 2 & 3 closed       pins 1 & 2 closed
         enabled

   COM1 & COM2 disabled      pins 2 & 3 closed       pins 2 & 3 closed

