AST RESEARCH, INC.

PREMIUM 386SX/16

Processor              80386SX
Processor Speed        16MHz
Chip Set               AST
Max. Onboard DRAM      None (4MB total on 32-bit external CPU/NPU card)
Cache                  16KB
BIOS                   AST
Dimensions             355mm x 251mm
I/O Options            16-bit external expansion card slot, 32-bit external
                       CPU/NPU card slot, 32-bit external memory card slot
                       (2), floppy interface, IDE interface, parallel port,
                       serial ports (2)
NPU Options            80387SX

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  32-bit external           CN1        Auxillary floppy           P4
  CPU/NPU card                         drive interface

  32-bit external           CN2        Power LED & reset          P5
  memory card                          switch

  32-bit external           CN3        Speaker                    P6
  memory card

  16-bit external           CN4        External battery           P8
  expansion card

  Primary floppy            P3         IDE interface             P11
  drive interface

  Note:Expansion card slots CN1 through CN4 will accept standard 8 or
  16-bit ISA cards.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Password check enabled                   E1            pins 1 & 2
                                                              closed

      Password check disabled                  E1            pins 2 & 3
                                                              closed

  »   Factory configured - do not alter        E2              Open

  »   Factory configured - do not alter        E3              Open

[Image]

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   Parity check enabled                    E1              Closed

      Parity check disabled                   E1               Open

                            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