
MAGUS DATA TECHNOLOGY, INC.

S486

Processor           80486SX/80486DX/80486DX2
Processor Speed     20/25/33/50(internal)/66(internal)MHz
Chip Set            Headland
Max. Onboard DRAM   128MB
Cache               None
BIOS                Phoenix
Dimensions          330mm x 218mm
I/O Options         None
NPU Options         4167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Turbo switch                J1       Speaker                     J4

  Turbo LED                   J2       Power LED & keylock         J5

  Reset switch                J3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Power good signal detect from            JP1           pins 1 & 2
      power supply                                            closed

      Power good signal detect from            JP1           pins 2 & 3
      board                                                   closed

     Monitor type select color                JP2           pins 1 & 2
                                                              closed

      Monitor type select monochrome           JP2           pins 2 & 3
                                                              closed

                       DRAM CONFIGURATION

      Size               Bank 0                  Bank 1

      1MB             (4) 256K x 9                NONE

     2MB 1            (4) 256K x 9            (4) 256K x 9

      4MB              (4) 1M x 9                 NONE

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

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

      16MB             (4) 4M x 9                 NONE

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

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

     32MB 1            (4) 4M x 9              (4) 4M x 9

      64MB            (4) 16M x 9                 NONE

      65MB            (4) 16M x 9             (4) 256K x 9

      68MB            (4) 16M x 9              (4) 1M x 9

      80MB            (4) 16M x 9              (4) 4M x 9

    128MB 1           (4) 16M x 9             (4) 16M x 9

  Note 1 :These configurations support zero wait state reads.

                          CPU TYPE CONFIGURATION

       Type               JP4                JP5               JP6

      80486SX          pins 2 & 3         pins 2 & 3        pins 2 & 3
                         closed            closed             closed

      80487SX          pins 1 & 2         pins 1 & 2        pins 1 & 2
                         closed            closed             closed

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

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

         CPU SPEED CONFIGURATION

        Speed                JP3

        25MHz         pins 2 & 3 closed

        33MHz         pins 1 & 2 closed

       50iMHz         pins 2 & 3 closed

       66iMHz         pins 1 & 2 closed

