PROSYS

IDEAL 486

Processor         80486DX
Processor Speed   25/33/40/50MHz
Chip Set          UMC
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J4       Reset switch               W7

  Speaker                      J6       Turbo LED                  W11

  Power LED & keylock          J7

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CPU speed select fast                    J5            pins 1 & 2
                                                              closed

      CPU speed select slow                    J5              Open

  »   Disk write select 1 wait state           J8            pins 2 & 3
                                                              closed

      Disk write select 0 wait states          J8            pins 1 & 2
                                                              closed

  »   Monitor type select color                W8              Open

      Monitor type select monochrome           W8             Closed

              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

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

      16MB        (4) 4M x 9         NONE

      20MB        (4) 1M x 9      (4) 4M 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    (4) 16K x 4

     128KB      (4) 32K x 8        NONE       (4) 16K x 4

     256KB      (4) 32K x 8    (4) 32K x 8    (4) 16K x 4

                 CACHE JUMPER CONFIGURATION

   Size       W1        W2        W3        W4        W5

   64KB     1 & 2      1 & 2     1 & 2     1 & 2    2 & 3

  128KB     1 & 2      1 & 2     2 & 3     2 & 3    2 & 3

  256KB     2 & 3      2 & 3     2 & 3     2 & 3    1 & 2

  Note:Pins designated should be in the closed position.