AST Premium 386SX/16

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The AST Premium 386SX/16 is a PC compatible desktop based on the 80386 processor.

Jumper Settings

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

 

CONNECTIONS

Purpose

Location

Purpose

Location

32-bit external CPU/NPU card

CN1

Auxillary floppy drive interface

P4

32-bit external memory card

CN2

Power LED & reset switch

P5

32-bit external memory card

CN3

Speaker

P6

16-bit external expansion card

CN4

External battery

P8

Primary floppy drive interface

P3

IDE interface

P11

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

 

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 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

See Also