
AST RESEARCH, INC.

BRAVO LP (202536-0XX)

Processor     80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive
Processor     25/33/50(internal)/66(internal)MHz
Speed
Chip Set      AST
Max. Onboard  64MB
DRAM
Cache         64KB (with external cache card)
BIOS          AST
Dimensions    330mm x 218mm
I/O Options   Floppy drive interface, IDE interface, parallel port, PS/2
              mouse port, serial ports (2), VGA feature connector, VGA
              port
NPU Options   None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Front panel                J2        IDE interface             J22
  connector

  PS/2 mouse port           J12        Floppy drive              J24
                                       interface

  Parallel port             J13        Speaker                   J27

  Serial port 1             J14        Chassis fan power         J28

  Personality module      J15, J16,    IDE interface LED         J40
  connectors                J46

  VGA port                  J18        Cache module           J50 - J53
                                       connectors

  VGA feature               J19        Riser Card                SL1
  connector

  Serial port 2             J20

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

     CMOS memory normal operation           E1                Open

      CMOS memory clear                      E1               Closed

     Parallel port IRQ select               E7              pins 1 & 2
      IRQ7                                                    closed

      Parallel port IRQ select               E7              pins 2 & 3
      IRQ5                                                    closed

     Factory configured - do not            E9                Open
      alter

     Factory configured - do not           E800             pins 1 & 2
      alter                                                   closed

     Factory configured - do not           E801             pins 2 & 3
      alter                                                   closed

     Power management enabled              E802             pins 1 & 2
                                                              closed

      Power management disabled             E802             pins 2 & 3
                                                              closed

     Factory configured - do not           E803             pins 1 & 2
      alter                                                   closed

     Factory configured - do not           E804             pins 1 & 2
      alter                                                   closed

     On board video enabled                SW1/1               Off

      On board video disabled               SW1/1               On

     POST type select normal               SW1/2               Off

      POST type select loop                 SW1/2               On

     Boot type select normal               SW1/3               Off

      Boot type select flash BIOS           SW1/3               On
      update

     Password enabled                      SW1/4               Off

      Password disabled                     SW1/4               On

     Monitor type select color             SW1/5               On

      Monitor type select                   SW1/5               Off
      monochrome

     Factory configured - do not           SW1/6               Off
      alter

     Factory configured - do not           SW1/7               Off
      alter

     System setup type select              SW1/8               Off
      allow access

      System setup type select              SW1/8               On
      deny access

     Factory configured - do not           SW1/9               Off
      alter

     Factory configured - do not          SW1/10               Off
      alter

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (1) 256K x        NONE           NONE           NONE
                    36

     2MB        (1) 256K x     (1) 256K x        NONE           NONE
                    36             36

     3MB        (1) 256K x     (1) 256K x     (1) 256K x        NONE
                    36             36             36

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

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

     5MB       (1) 1M x 36     (1) 256K x        NONE           NONE
                                   36

     6MB       (1) 1M x 36     (1) 256K x     (1) 256K x        NONE
                                   36             36

     7MB       (1) 1M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     8MB       (1) 1M x 36    (1) 1M x 36        NONE           NONE

     9MB       (1) 1M x 36    (1) 1M x 36     (1) 256K x        NONE
                                                  36

     10MB      (1) 1M x 36    (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                  36

     12MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     13MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

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

                        DRAM CONFIGURATION (CONT)

     16MB        (1) 4M x        NONE           NONE            NONE
                   36

     17MB        (1) 4M x     (1) 256K x        NONE            NONE
                   36             36

     18MB        (1) 4M x     (1) 256K x      (1) 256K x        NONE
                   36             36             36

     19MB        (1) 4M x     (1) 256K x      (1) 256K x    (1) 256K x 36
                   36             36             36

     20MB        (1) 4M x    (1) 1M x 36        NONE            NONE
                   36

     21MB        (1) 4M x    (1) 1M x 36      (1) 256K x        NONE
                   36                            36

     22MB        (1) 4M x    (1) 1M x 36      (1) 256K x    (1) 256K x 36
                   36                            36

     24MB        (1) 4M x    (1) 1M x 36     (1) 1M x 36        NONE
                   36

     25MB        (1) 4M x    (1) 1M x 36     (1) 1M x 36    (1) 256K x 36
                   36

     28MB        (1) 4M x    (1) 1M x 36     (1) 1M x 36     (1) 1M x 36
                   36

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

     33MB        (1) 4M x    (1) 4M x 36      (1) 256K x        NONE
                   36                            36

     34MB        (1) 4M x    (1) 4M x 36      (1) 256K x    (1) 256K x 36
                   36                            36

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

     37MB        (1) 4M x    (1) 4M x 36     (1) 1M x 36    (1) 256K x 36
                   36

     40MB        (1) 4M x    (1) 4M x 36     (1) 1M x 36     (1) 1M x 36
                   36

     48MB        (1) 4M x    (1) 4M x 36     (1) 4M x 36        NONE
                   36

     49MB        (1) 4M x    (1) 4M x 36     (1) 4M x 36    (1) 256K x 36
                   36

     52MB        (1) 4M x    (1) 4M x 36     (1) 4M x 36     (1) 1M x 36
                   36

     64MB        (1) 4M x    (1) 4M x 36     (1) 4M x 36     (1) 4M x 36
                   36

                         CPU UPGRADE CONFIGURATION

       Type             E2           E3         E4        E5        E6

       None             N/A         N/A        N/A       N/A       2 & 3

      80486SX          Open         Open      2 & 3     2 & 3      1 & 2

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

    80486DX/DX2       Closed       2 & 3      1 & 2     2 & 3      1 & 2

  Overdrive (ODPR)    Closed       2 & 3      1 & 2     2 & 3      1 & 2

  Overdrive (ODP)     Closed       1 & 2      1 & 2     2 & 3      2 & 3

  Overdrive (P24T)    Closed       1 & 2      1 & 2     1 & 2      2 & 3

  Note: Pins designated should be in the closed position.

  CPU SPEED CONFIGURATION

    Speed           E8

    25MHz          Open

    33MHz         Closed

    50iMHz         Open

    66iMHz        Closed

                    VIDEO MEMORY CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

      512KB       (1) 256K x 16         NONE            NONE

       1MB        (1) 256K x 16    (1) 256K x 16        NONE

       2MB        (1) 256K x 16    (1) 256K x 16    (2) 256K x 16

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

