
DESTINY COMPUTERS, INC.

486 ACE ADVANTAGE


Processor         80486SX/80487SX/80486DX/80486DX2
Processor Speed   20/25/33/50/66(internal)MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       4167


[Image]

                                CONNECTIONS

  Purpose               Location      Purpose                Location

  Reset switch            J19         Speaker                   J21

  Turbo LED          J20 pins 1 & 2   Power LED &               J22
                                      keylock

  Turbo switch       J20 pins 3 & 4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery select internal                  W1             Closed

      Battery select external                  W1              Open

     CMOS memory normal operation             W2            pins 1 & 2
                                                              closed

      CMOS memory clear                        W2            pins 2 & 3
                                                              closed

     Bus speed select ATCLK/8                 W3            pins 1 & 2
                                                              closed

      Bus speed select ATCLK/6                 W3            pins 2 & 3
                                                              closed

     Monitor type select color                W12           pins 1 & 2
                                                              closed

      Monitor type select monochrome           W12           pins 2 & 3
                                                              closed

     Factory configured - do not alter        W13             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) 1M x 9     (4) 256K x 9

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

                    CACHE CONFIGURATION

     Size          Bank 0       TAG (U29)      TAG (U34)

     64KB        (8) 8K x 8        NONE       (1) 8K x 8

     256KB      (8) 32K x 8    (1) 16K x 1    (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

      Size               W8                 W9                 W10

      64KB            pins 2 & 3        pins 2 & 3      pins 2 & 3 closed
                       closed             closed

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

                          CPU TYPE CONFIGURATION

      Type         Oscillator      W4        W5        W6          W7

  80486SX 20MHz      40MHz       2 & 3     2 & 3      Open        Open

  80486DX 25MHz      50MHz       2 & 3     1 & 2      1 & 2       2 & 3

  80486DX 33MHz     66.6MHz      2 & 3     1 & 2      1 & 2       2 & 3

  80486DX 50MHz      50MHz       1 & 2     1 & 2      1 & 2       2 & 3

  80486DX 50MHz      100MHz      2 & 3     1 & 2      1 & 2       2 & 3

  80486DX2 50MHz     50MHz       1 & 2     1 & 2      1 & 2       2 & 3

  Note:Pins designated should be in the closed position.

