
AST RESEARCH, INC.

BRAVO MS, MS-T, MS-L PENTIUM (RATTLER) (202653-XXX)

Processor             Pentium
Processor Speed       60/66/90/100MHz
Chip Set              AST
Max. Onboard DRAM     128MB
Cache                 512KB
BIOS                  AMI
Dimensions            330mm x 218mm
I/O Options           Floppy drive interface, IDE interfaces (2), parallel
                      port, serial ports (2), PS/2 mouse port, VGA feature
                      connector, VGA port
NPU Options           None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  VGA port                   CN1       Floppy drive interface      J24

  Parallel port              CN2       Speaker                     J27

  Serial port 2              CN3       Chassis fan power           J28

  Serial port 1              CN4       Front panel connector       J29

  PS/2 mouse port            CN5       Power LED & keylock         J32

  VGA feature connector      J19       IDE interface LED           J40

  IDE interface 2            J22       Video memory upgrade        SL1
                                       slot

  IDE interface 1            J23       Riser Card                  SL2

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not              E4              Open
      alter

     Factory configured - do not              E5              Open
      alter

     Factory configured - do not              E6              Open
      alter

     Factory configured - do not              E8              Open
      alter

     Monitor type select color                E9             Closed

      Monitor type select monochrome           E9              Open

     System setup enabled                    E10             Closed

      System setup disabled                   E10              Open

     On board video enabled                  E11             Closed

      On board video disabled                 E11              Open

     Password enabled                        E12             Closed

      Password disabled                       E12              Open

     Flash BIOS write protect enabled        E13             Closed

      Flash BIOS write protect                E13              Open
      disabled

     CMOS memory normal operation            J26             Closed

      CMOS memory clear                       J26              Open

                            DRAM CONFIGURATION

     Size         Bank 0        Bank 1         Bank 2          Bank 3

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

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

     8MB        (1) 2M x 36      NONE           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

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

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

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

     18MB       (1) 2M x 36   (1) 2M x 36     (1) 256K x    (1) 256K x 36
                                                 36

     20MB       (1) 2M x 36   (1) 2M x 36    (1) 1M x 36        NONE

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

     24MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36        NONE

     32MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36     (1) 2M x 36

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

     32MB       (1) 8M x 36      NONE           NONE            NONE

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

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

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

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

     40MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36        NONE

     48MB       (1) 4M x 36   (1) 4M x 36    (1) 2M x 36     (1) 2M x 36

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

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

     64MB       (1) 8M x 36   (1) 8M x 36       NONE            NONE

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0        Bank 1        Bank 2          Bank 3

     66MB        (1) 8M x 36   (1) 8M x 36    (1) 256K x    (1) 256K x 36
                                                 36

     68MB        (1) 8M x 36   (1) 8M x 36   (1) 1M x 36        NONE

     72MB        (1) 8M x 36   (1) 8M x 36   (1) 1M x 36     (1) 1M x 36

     72MB        (1) 8M x 36   (1) 8M x 36   (1) 2M x 36        NONE

     80MB        (1) 8M x 36   (1) 8M x 36   (1) 2M x 36     (1) 2M x 36

     80MB        (1) 8M x 36   (1) 8M x 36   (1) 4M x 36        NONE

     96MB        (1) 8M x 36   (1) 8M x 36   (1) 4M x 36     (1) 4M x 36

     96MB        (1) 8M x 36   (1) 8M x 36   (1) 8M x 36        NONE

     128MB       (1) 8M x 36   (1) 8M x 36   (1) 8M x 36     (1) 8M x 36

                     CACHE CONFIGURATION

             Size                          Bank 0

             512KB                       (8) 64K x 8

  Note: Cache is factory installed and is not configurable.

                          CPU SPEED CONFIGURATION

    Speed           E1             E2             E3             E7

    60MHz       pins 1 & 2        Open          Closed          Open
                  closed

    66MHz       pins 1 & 2       Closed         Closed          Open
                  closed

    90MHz       pins 2 & 3        Open          Closed          Open
                  closed

   100MHz       pins 2 & 3        Open          Closed         Closed
                  closed

  Note: Use these settings with IMI415 installed at U7.

                          CPU SPEED CONFIGURATION

    Speed           E1             E2             E3             E7

    60MHz       pins 1 & 2        Open          Closed         Closed
                  closed

    66MHz       pins 1 & 2       Closed         Closed         Closed
                  closed

    90MHz       pins 2 & 3        Open          Closed         Closed
                  closed

   100MHz       pins 2 & 3        Open          Closed          Open
                  closed

  Note: Use these settings with IMI470 installed at U7.

