SPRING CIRCLE COMPUTER, INC.
80386SX
| 
 Processor  | 
 80386SX  | 
| 
 Processor Speed  | 
 25MHz  | 
| 
 Chip Set  | 
 Intel  | 
| 
 Max. Onboard DRAM  | 
 16MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 220mm x 236mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 External battery  | 
 J17  | 
 Turbo switch  | 
 J24  | 
| 
 Speaker  | 
 J21  | 
 Turbo LED  | 
 J25  | 
| 
 Power LED & keylock  | 
 J22  | 
 Reset switch  | 
 J26  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 CMOS memory normal operation  | 
 J16  | 
 Open  | 
| 
 CMOS memory clear  | 
 J16  | 
 Closed  | |
| » | 
 Battery select internal  | 
 J17  | 
 pins 2 & 3 closed  | 
| 
 Battery select external  | 
 J17  | 
 Closed  | |
| » | 
 Monitor type select color  | 
 J18  | 
 Closed  | 
| 
 Monitor type select monochrome  | 
 J18  | 
 Open  | |
| » | 
 Floppy drive current select low (12mA)  | 
 J19  | 
 Open  | 
| 
 Floppy drive current select high (24mA)  | 
 J19  | 
 Closed  | |
| » | 
 Pipeline mode disabled  | 
 J20  | 
 Open  | 
| 
 Pipeline mode enabled  | 
 J20  | 
 Closed  | |
| » | 
 NPU disabled  | 
 J23  | 
 pins 2 & 3 closed  | 
| 
 NPU enabled  | 
 J23  | 
 pins 1 & 2 closed  | |
| 
 DRAM CONFIGURATION  | ||||||
| 
 Size  | 
 Bank 0  | 
 Parity (P-0)  | 
 Bank 1  | 
 Parity (P-1)  | 
 Bank 2  | 
 Bank 3  | 
| 
 512KB  | 
 (4) 44256  | 
 (2) 41256  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 512KB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 256K x 9  | 
 NONE  | 
| 
 1MB  | 
 (4) 44256  | 
 (2) 41256  | 
 (4) 44256  | 
 (2) 41256  | 
 NONE  | 
 NONE  | 
| 
 1MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
| 
 2MB  | 
 (4) 441000  | 
 (2) 411000  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 2MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 1M x 9  | 
 NONE  | 
| 
 4MB  | 
 (4) 441000  | 
 (2) 411000  | 
 (4) 441000  | 
 (2) 411000  | 
 NONE  | 
 NONE  | 
| 
 4MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
| 
 8MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 4M x 9  | 
 NONE  | 
| 
 16MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 4M x 9  | 
 (2) 4M x 9  |