
UNIDENTIFIED

ACE CACHE 486

Processor         80486DX
Processor Speed   25/33/40MHz
Chip Set          C & T
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI/MR/Phoenix
Dimensions        330mm x 218
I/O Options       32-bit external memory card
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  Reset switch               J10       External battery           JP1

  Power LED & keylock        J11       32-bit external             S1
                                       memory card

  Speaker                    J12

                        USER CONFIGURABLE SETTINGS

               Function                     Jumper          Position

     Battery select internal                JP2             Closed

      Battery select external                JP2              Open

     Monitor type select monochrome         JP3              Open
      (AMI/Phoenix BIOS)

      Monitor type select color              JP3             Closed

     Password enabled (MR BIOS)             JP3             Closed

      Password disabled                      JP3              Open

     Factory configured - do not            JP9               N/A
      alter

     Onboard DRAM enabled               JP10 & JP11    pins 1 & 2, 3 & 4
                                                             closed

      Onboard DRAM disabled              JP10 & JP11    pins 2 & 3, 4 & 5
                                                             closed

     Factory configured - do not            JP28             Open
      alter

     Factory configured - do not            JP29             Open
      alter

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

     17MB       (4) 4M x 9     (4) 256K x 9      NONE           NONE

     18MB       (4) 256K x 9   (4) 256K x 9   (4) 4M x 9        NONE

     19MB       (4) 256K x 9   (4) 256K x 9   (4) 256K x 9   (4) 4M x 9

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

     21MB       (4) 256K x 9   (4) 1M x 9     (4) 4M x 9        NONE

     22MB       (4) 256K x 9   (4) 256K x 9   (4) 1M x 9     (4) 4M x 9

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

     25MB       (4) 1M x 9     (4) 1M x 9     (4) 4M x 9    (4) 256K x 9

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

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

     33MB       (4) 4M x 9     (4) 4M x 9     (4) 256K x 9      NONE

     34MB       (4) 256K x 9   (4) 256K x 9   (4) 4M x 9     (4) 4M x 9

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

     37MB       (4) 4M x 9     (4) 4M x 9     (4) 256K x 9   (4) 1M x 9

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1        Bank 2          Bank 3

     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

     49MB       (4) 4M x 9     (4) 4M x 9    (4) 4M x 9     (4) 256K x 9

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

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

  Note:Banks 2 and 3 are used when a 32-bit external memory card is
  installed at S1.

     CACHE CONFIGURATION

     Size          Bank 0

     64KB        (8) 8K x 8

     256KB      (8) 32K x 8

                       CACHE CONFIGURATION

   Size        JP4        JP5        JP6        JP7       JP8

   64KB       2 & 3      2 & 3      Open       Open       Open

   256KB      1 & 2      1 & 2     Closed     Closed     Closed

  Note: Pins designated should be in the closed position.

