AMERICAN RESEARCH CORPORATION
386S
| 
 Processor  | 
 80386DX  | 
| 
 Processor Speed  | 
 16/20MHz  | 
| 
 Chip Set  | 
 Unknown  | 
| 
 Max. Onboard DRAM  | 
 8MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Phoenix  | 
| 
 Dimensions  | 
 333mm x 305mm  | 
| 
 I/O Options  | 
 32-bit external memory card slots (2), MIPS meter connector  | 
| 
 NPU Options  | 
 80387  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 MIPS meter  | 
 CON1  | 
 Speaker  | 
 CON5  | 
| 
 External battery  | 
 CON2  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 Monitor type select color  | 
 J9  | 
 pins 1 & 2 closed  | 
| 
 Monitor type select monochrome  | 
 J9  | 
 pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 2MB  | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
| 
 DRAM CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Slot S1  | 
 Slot S2  | 
| 
 2MB  | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
 NONE  | 
 NONE  | 
| 
 4MB  | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
 2MB  | 
 NONE  | 
| 
 6MB  | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
 2MB  | 
 2MB  | 
| 
 8MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
 NONE  | 
 NONE  | 
| 
 10MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
 2MB  | 
 NONE  | 
| 
 12MB 1 | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
 2MB  | 
 2MB  | 
| 
 12MB 2 | 
 (4) 256K x 9  | 
 (4) 256K x 9  | 
 8MB  | 
 2MB  | 
| 
 16MB  | 
 (4) 1M x 9  | 
 (4) 1M x 9  | 
 8MB  | 
 NONE  | 
| 
 DRAM JUMPER CONFIGURATION  | ||||
| 
 Size  | 
 J3  | 
 J4  | 
 J5  | 
 J6  | 
| 
 2MB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 4MB  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 6MB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
| 
 8MB  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 10MB  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 12MB 1 | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 12MB 2 | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 2 & 3 closed  | 
| 
 16MB  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 Note 1 :Use this setting when 2MB is installed on board and in slot S1 and S2.Note 2 :Use this setting when 2MB is installed on board and in slot S1, and 8MB is installed in slot S2. | ||||
| 
 NPU CONFIGURATION  | ||
| 
 Setting  | 
 J1  | 
 J2  | 
| 
 Disabled  | 
 Open  | 
 Closed  | 
| 
 Enabled  | 
 Closed  | 
 Open  | 
| 
 BIOS CONFIGURATION  | ||
| 
 Size  | 
 J7  | 
 J8  | 
| 
 27128  | 
 pins 1 & 2 closed  | 
 pins 1 & 2 closed  | 
| 
 27256  | 
 pins 2 & 3 closed  | 
 pins 1 & 2 closed  | 
| 
 27512  | 
 pins 2 & 3 closed  | 
 pins 2 & 3 closed  |