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  |