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 |

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 |