MAGITRONICS

386DX/486SX/486DX/486DX2

Processor        80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed  25/33/40/50(internal)/50/66(internal)MHz
Chip Set         Unidentified
Max. Onboard DRAM32MB
Cache            64/128/256KB
BIOS             AMI
Dimensions       254mm x 220mm
I/O Options      None
NPU Options      80387DX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Reset switch                J1       Speaker                     J4

  Turbo switch                J2       Power LED & keylock         J5

  Turbo LED                   J3       External battery            J7

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation             P1           pins 2 & 3
                                                              closed

      CMOS memory clear                        P1           pins 1 & 2
                                                              closed

  »   Monitor type select color                P2             Closed

      Monitor type select monochrome           P2              Open

              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

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

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

      16MB        (4) 4M x 9         NONE

      17MB        (4) 256K x 9    (4) 4M x 9

      17MB        (4) 4M x 9     (4) 256K x 9

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

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

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

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     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           P3              P5             P7             P9

    64KB        pins 2 & 3        Open           Open           Open
                 closed

   128KB        pins 1 & 2        Open          Closed         Closed
                 closed

   256KB        pins 2 & 3       Closed         Closed         Closed
                 closed

                          CPU TYPE CONFIGURATION

     Type            P4             P25           P33            P100

  80386 (PQFP)    pins 1 & 2     pins 2 & 3       Open        pins 2 & 3
                   closed         closed                        closed

  80486 (PQFP)    pins 2 & 3     pins 1 & 2      Closed       pins 1 & 2
                   closed         closed                        closed

  80486 (PGA)     pins 2 & 3     pins 1 & 2      Closed       pins 2 & 3
                   closed         closed                        closed

                          CPU TYPE CONFIGURATION

       Type                P12               P13                P14

      80486SX           pins 2 & 3           Open              Open
                         closed

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

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

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

             CPU SPEED CONFIGURATION

  Speed      P30       P31       P32       P97

  25MHz     Closed     Open     Closed     Open

  33MHz     Closed    Closed     Open      Open

  40MHz      Open      Open     Closed    Closed

  50MHz     Closed     Open     Closed    Closed

  50iMHz    Closed     Open     Closed     Open

  66iMHz    Closed    Closed     Open      Open