AST RESEARCH, INC.

ADVANTAGE+ (CHINA) 486 (202676-F08)

Processor       80486SX/80486DX/CX486DX2/80486DX2/CX5X86
Processor Speed 25/33/50(internal)/66(internal)MHz
Chip Set        Unidentified
Max. Onboard    20MB
DRAM
Cache           None
BIOS            Unidentified
Dimensions      220mm x 220mm
I/O Options     Floppy drive interface, IDE interface, parallel port, PS/2
                mouse port, serial port, VGA feature connector, VGA port,
                riser slot
NPU Options     None

[Image]

                                CONNECTIONS

  Purpose                  Location   Purpose                    Location

  VGA port                   CN1      IDE interface LED            E13

  Parallel port              CN2      VGA feature connector        J19

  Serial port                CN3      IDE interface                J22

  PS/2 mouse port            CN4      Floppy drive interface       J24

  Reset switch               E11      Chassis fan power            J28

  Power LED                  E12      Riser slot                   SL1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not              E1              Open
      alter

  »   Factory configured - do not              E2              Open
      alter

  »   On board video enabled                   E3             Closed

      On board video disabled                  E3              Open

  »   Monitor type select color                E4              Open

      Monitor type select monochrome           E4             Closed

  »   Password enabled                         E5              Open

      Password disabled                        E5             Closed

  »   Factory configured - do not              E8              Open
      alter

  »   Flash BIOS normal operation             E14              Open

      Flash BIOS force update at boot         E14             Closed

  »   Factory configured - do not             E16              Open
      alter

                      DRAM CONFIGURATION

        Size                Bank 0               Bank 1

         4MB                 4MB                  NONE

         5MB                 4MB             (1) 256K x 32

         8MB                 4MB              (1) 4M x 32

        20MB                 4MB              (1) 4M x 32

  Note: Bank 0 is factory installed and is not configurable.

                          CPU TYPE CONFIGURATION

      Type            E6            E7            E9             E10

    80486SX       pins 1 & 2       Open        pins 2 & 3     pins 1 & 2
                    closed                      closed          closed

    80486DX       pins 1 & 2      Closed       pins 2 & 3     pins 2 & 3
                    closed                      closed          closed

    80486DX2      pins 1 & 2      Closed       pins 2 & 3     pins 2 & 3
                    closed                      closed          closed

  Note: Upgrades are not supported. These settings are for reference
  only.