AMPRO COMPUTERS, INC.
LITTLE BOARD/386SX
| 
 Processor  | 
 80386SX  | 
| 
 Processor Speed  | 
 25MHz  | 
| 
 Chip Set  | 
 Ampro  | 
| 
 Max. onboard DRAM  | 
 16MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Award  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Floppy drive interface, IDE interface, parallel port, SCSI connector, serial ports (2)  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Power connector  | 
 J1  | 
 SCSI interface  | 
 J7  | 
| 
 Serial port (COM2)  | 
 J2  | 
 Floppy drive interface  | 
 J8  | 
| 
 Serial port (COM1)  | 
 J3  | 
 IDE interface  | 
 J11  | 
| 
 Keyboard  | 
 J5  | 
 Power J1-1 to +12V BUS  | 
 W7  | 
| 
 Parallel port  | 
 J6  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper/Switch  | 
 Position  | |
| » | 
 SCSI controller enabled  | 
 W1  | 
 Closed  | 
| 
 SCSI controller disabled  | 
 W1  | 
 Open  | |
| » | 
 SCSI controller select IRQ3  | 
 W2 & W3  | 
 Closed  | 
| 
 SCSI controller select none  | 
 W2 & W3  | 
 Open  | |
| » | 
 Factory configured - do not alter  | 
 W4  | 
 Open  | 
| » | 
 Factory configured - do not alter  | 
 W5  | 
 Open  | 
| » | 
 SCSI termination power enabled  | 
 W6  | 
 Closed  | 
| 
 SCSI termination power none  | 
 W6  | 
 Open  | |
| » | 
 Floppy clock select 16MHz  | 
 W10  | 
 Closed  | 
| 
 Floppy clock select none  | 
 W10  | 
 Open  | |
| » | 
 Flash EPROM programming power +12V to Byte-wide  | 
 W16  | 
 Open  | 
| 
 Flash EPROm programming power disabled  | 
 W16  | 
 Closed  | |
| » | 
 Watchdog timer output selection  | 
 W17  | 
 Open  | 
| 
 Watchdog timer output none  | 
 W17  | 
 Closed  | |
| » | 
 Factory configured - do not alter  | 
 W18  | 
 Open  | 
| » | 
 Floppy PCVAL selection  | 
 W19  | 
 Open  | 
| 
 Floppy PCVAL none  | 
 W19  | 
 Closed  | |
| » | 
 Factory configured - do not alter  | 
 W21  | 
 N/A  | 
| » | 
 Factory configured - do not alter  | 
 W22  | 
 N/A  | 
| » | 
 Power fail NMI enabled  | 
 W23  | 
 Open  | 
| 
 Power fail NMI none  | 
 W23  | 
 Closed  | |
| » | 
 Parallel port interrrupt option select via setup  | 
 W24  | 
 Open  | 
| 
 Parallel port interrrupt option none  | 
 W24  | 
 Closed  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 512KB  | 
 (2) 256K x 9  | 
 NONE  | 
| 
 1MB  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
| 
 2MB  | 
 (2) 1M x 9  | 
 (2) 256K x 9  | 
| 
 4MB  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
| 
 8MB  | 
 (2) 4M x 9  | 
 NONE  | 
| 
 10MB  | 
 (2) 1M x 9  | 
 (2) 4M x 9  | 
| 
 16MB  | 
 (2) 4M x 9  | 
 (2) 4M x 9  | 
| 
 EPROM CONFIGURATION (S0)  | |||
| 
 EPROM  | 
 W8  | 
 W9  | 
 W25  | 
| 
 27C256  | 
 Open  | 
 pins 7 & 8, 10 & 11  | 
 pins 1 & 2  | 
| 
 27C512  | 
 Open  | 
 pins 1 & 4, 7 & 8, 10 & 11  | 
 pins 1 & 2  | 
| 
 27C010  | 
 Open  | 
 pins 1 & 4, 2 & 5, 6 & 9, 7 & 8  | 
 pins 1 & 2  | 
| 
 27C020  | 
 Open  | 
 pins 1 & 4, 2 & 5, 6 & 9, 7 & 8, 11 & 12  | 
 pins 1 & 2  | 
| 
 27C040  | 
 Open  | 
 pins 1 & 4, 2 & 3, 6 & 9, 7 & 8, 11 & 12  | 
 pins 1 & 2  | 
| 
 27C080  | 
 Closed  | 
 pins 1 & 4, 2 & 3, 7 & 8, 11 & 12  | 
 pins 1 & 2  | 
| 
 62256  | 
 Open  | 
 pins 4 & 7, 5 & 8, 10 & 11  | 
 pins 1 & 2 or 2 & 3  | 
| 
 628128  | 
 Open  | 
 pins 1 & 2, 4 & 7, 5 & 8, 10 & 11  | 
 pins 1 & 2 or 2 & 3  | 
| 
 uPD434000  | 
 Open  | 
 pins 1 & 2, 3 & 6, 4 & 7, 5 & 8, 11 & 12  | 
 pins 1 & 2 or 2 & 3  | 
| 
 28F256  | 
 Open  | 
 pins 2 & 5, 6 & 9, 7 & 8  | 
 pins 1 & 2  | 
| 
 28F512  | 
 Open  | 
 pins 1 & 4, 2 & 5, 6 & 9, 7 & 8  | 
 pins 1 & 2  | 
| 
 28F010  | 
 Open  | 
 pins 1 & 4, 2 & 5, 6 & 9, 7 & 8  | 
 pins 1 & 2  | 
| 
 28F020  | 
 Open  | 
 pins 1 & 4, 2 & 5, 6 & 9, 7 & 8, 11 & 12  | 
 pins 1 & 2  | 
| 
 Note:Pins designated should be in the closed position.  | |||
| 
 EPROM/FLASH EPROM CONFIGURATION (S1 & S2)  | ||||
| 
 EPROM  | 
 W12  | 
 W13  | 
 W14  | 
 W15  | 
| 
 128KB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 256KB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  |