AST RESEARCH, INC.

ADVANTAGE! (94) 486 (202601-XXX)

Processor     80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive
Processor     25/33/50(internal)/66(internal)MHz
Speed
Chip Set      AST
Max. Onboard  32MB
DRAM
Cache         None
BIOS          AMI
Dimensions    330mm x 218mm
I/O Options   PS/2 mouse port, floppy drive interface, IDE interface,
              parallel port, serial ports (2), VGA port
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  PS/2 mouse port          CN1        Power LED & keylock         E12
                                      (not used)

  Serial port 2            CN2        IDE interface LED           E13
                                      (not used)

  Serial port 1            CN3        IDE interface               J22

  Parallel port            CN4        Floppy drive                J24
                                      interface

  VGA port                 CN5        Chassis fan power           J28

  Reset switch (not        E11        Riser card                  SL1
  used)

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Parallel port IRQ select IRQ7            E1           pins 1 & 2
                                                              closed

      Parallel port IRQ select IRQ5            E1           pins 2 & 3
                                                              closed

  »   On board video enabled                   E3             Closed

      On board video disabled                  E3              Open

  »   Monitor type select color                E4              Open

      Monitor type select monochrome           E4             Closed

  »   CMOS memory normal operation             E5              Open

      CMOS memory clear                        E5             Closed

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       4MB        (1) 512K x 36    (1) 512K x 36

       4MB         (1) 1M x 36          NONE

       5MB         (1) 1M x 36     (1) 256K x 36

       6MB         (1) 1M x 36     (1) 512K x 36

       8MB         (1) 1M x 36      (1) 1M x 36

       9MB         (1) 2M x 36     (1) 256K x 36

      10MB         (1) 2M x 36     (1) 512K x 36

      12MB         (1) 2M x 36      (1) 1M x 36

      16MB         (1) 2M x 36      (1) 2M x 36

      17MB         (1) 4M x 36     (1) 256K x 36

      18MB         (1) 4M x 36     (1) 512K x 36

      20MB         (1) 4M x 36      (1) 1M x 36

      24MB         (1) 4M x 36      (1) 2M x 36

      32MB         (1) 4M x 36      (1) 4M x 36

  CPU SPEED CONFIGURATION

    Speed           E2

    25MHz         Closed

    33MHz          Open

    50iMHz        Closed

    66IMHz         Open

                          CPU TYPE CONFIGURATION

        Type            E6          E7          E8        E9        E10

   80486SX (PQFP)      1 & 2      Closed       2 & 3    1 & 2      2 & 3

    80486SX (PGA)      1 & 2       Open        1 & 2    2 & 3      1 & 2

    80487SX, ODP       1 & 2      Closed       2 & 3    1 & 2      2 & 3

  80486DX,DX2,ODPR     1 & 2      Closed       1 & 2    2 & 3      2 & 3

  Pentium Overdrive    2 & 3      Closed       2 & 3    1 & 2      2 & 3

  Note: Pins designated should be in the closed position.