
AST RESEARCH, INC.

ADVANTAGE! PRO 486 (202560-000, 102)

Processor     80486SX/80487SX/ODP486SX/80486DX/80486DX2/Pentium Overdrive
Processor     25/33/50(internal)/66(internal)MHz
Speed
Chip Set      Unidentified
Max. Onboard  64MB
DRAM
Cache         64/256KB
BIOS          Unidentified
Dimensions    355mm x 305mm
I/O Options   Floppy drive interface, IDE interface, parallel port, PS/2
              mouse port, serial ports (2), 8514 video pass through
              connector, VGA port
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  VGA port                  CN1        IDE interface             J22

  Parallel port             CN2        Floppy drive              J24
                                       interface

  Serial port               CN3        Speaker                   J27

  Serial port               CN4        Chassis fan power         J28

  PS/2 mouse port           CN5        Front panel               J29
                                       connector

  8514 video pass           J19
  through connector

  Note: The location of J27 is unidentified.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color                E4             Closed

      Monitor type select monochrome           E4              Open

     On board video enabled                   E5             Closed

      On board video disabled                  E5              Open

     Password enabled                         E6              Open

      Password disabled                        E6             Closed

     Parallel port IRQ select IRQ7           E12           pins 1 & 2
                                                              closed

      Parallel port IRQ select IRQ5           E12           pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (1) 256K x        NONE           NONE           NONE
                    32

     2MB        (1) 256K x     (1) 256K x        NONE           NONE
                    32             32

     3MB        (1) 256K x     (1) 256K x     (1) 256K x        NONE
                    32             32             32

     4MB       (1) 1M x 32        NONE           NONE           NONE

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 32
                    32             32             32

     5MB       (1) 1M x 32     (1) 256K x        NONE           NONE
                                   32

     6MB       (1) 1M x 32     (1) 256K x     (1) 256K x        NONE
                                   32             32

     7MB       (1) 1M x 32     (1) 256K x     (1) 256K x    (1) 256K x 32
                                   32             32

     8MB       (1) 1M x 32    (1) 1M x 32        NONE           NONE

     9MB       (1) 1M x 32    (1) 1M x 32     (1) 256K x        NONE
                                                  32

     10MB      (1) 1M x 32    (1) 1M x 32     (1) 256K x    (1) 256K x 32
                                                  32

     12MB      (1) 1M x 32    (1) 1M x 32    (1) 1M x 32        NONE

     13MB      (1) 1M x 32    (1) 1M x 32    (1) 1M x 32    (1) 256K x 32

     16MB      (1) 4M x 32        NONE           NONE           NONE

     16MB      (1) 1M x 32    (1) 1M x 32    (1) 1M x 32     (1) 1M x 32

     17MB      (1) 4M x 32     (1) 256K x        NONE           NONE
                                   32

     18MB      (1) 4M x 32     (1) 256K x     (1) 256K x        NONE
                                   32             32

     19MB      (1) 4M x 32     (1) 256K x     (1) 256K x    (1) 256K x 32
                                   32             32

     20MB      (1) 4M x 32    (1) 1M x 32        NONE           NONE

     21MB      (1) 4M x 32    (1) 1M x 32     (1) 256K x        NONE
                                                  32

                        DRAM CONFIGURATION (CONT)

     Size         Bank 0        Bank 1         Bank 2          Bank 3

     22MB       (1) 4M x 32   (1) 1M x 32     (1) 256K x    (1) 256K x 32
                                                 32

     24MB       (1) 4M x 32   (1) 1M x 32    (1) 1M x 32        NONE

     25MB       (1) 4M x 32   (1) 1M x 32    (1) 1M x 32    (1) 256K x 32

     28MB       (1) 4M x 32   (1) 1M x 32    (1) 1M x 32     (1) 1M x 32

     32MB       (1) 4M x 32   (1) 4M x 32       NONE            NONE

     33MB       (1) 4M x 32   (1) 4M x 32     (1) 256K x        NONE
                                                 32

     34MB       (1) 4M x 32   (1) 4M x 32     (1) 256K x    (1) 256K x 32
                                                 32

     36MB       (1) 4M x 32   (1) 4M x 32    (1) 1M x 32        NONE

     37MB       (1) 4M x 32   (1) 4M x 32    (1) 1M x 32    (1) 256K x 32

     40MB       (1) 4M x 32   (1) 4M x 32    (1) 1M x 32     (1) 1M x 32

     48MB       (1) 4M x 32   (1) 4M x 32    (1) 4M x 32        NONE

     49MB       (1) 4M x 32   (1) 4M x 32    (1) 4M x 32    (1) 256K x 32

     52MB       (1) 4M x 32   (1) 4M x 32    (1) 4M x 32     (1) 1M x 32

     64MB       (1) 4M x 32   (1) 4M x 32    (1) 4M x 32     (1) 4M x 32

            CACHE CONFIGURATION

     Size          Bank 0          TAG

     64KB        (8) 8K x 8    (1) 8K x 9

     256KB       (8) 32K x 8   (1) 32K x 9

       CACHE JUMPER CONFIGURATION

   Size       E1       E2        E3

   None      Open     Open      Open

   64KB      Open     Open      Open

  256KB     Closed   Closed    Closed

                          CPU TYPE CONFIGURATION

      Type           E11         E13      E14      E15     E16      E17

  80486SX(PQFP)      Open       Open      1 & 2   1 & 2   1 & 2    1 & 2

  80486SX(PGA)      Closed      Open      1 & 2   1 & 2   1 & 2    1 & 2

     80487SX        Closed     Closed     1 & 2   1 & 2   2 & 3    1 & 2

    ODP486SX        Closed     Closed     1 & 2   1 & 2   2 & 3    1 & 2

     80486DX        Closed     Closed     2 & 3   1 & 2   2 & 3    1 & 2

    80486DX2        Closed     Closed     2 & 3   1 & 2   2 & 3    1 & 2

      P24T          Closed     Closed     2 & 3   2 & 3   2 & 3    Open

  Note: Pins designated should be in the closed position. The location of
  the PQFP is unidentified.

   CPU SPEED CONFIGURATION

  Speed       E9       E10

  25MHz     Closed    Closed

  33MHz      Open     Closed

  50iMHz    Closed    Closed

  66iMHz     Open     Closed

          VIDEO MEMORY CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (4) 256K x 4       NONE

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

