UNIDENTIFIED
80386 SX
| 
 Processor  | 
 80386SX  | 
| 
 Processor Speed  | 
 16/20MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 4MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 330mm x 217mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Turbo LED  | 
 JP1  | 
 Turbo switch  | 
 JP4  | 
| 
 Speaker  | 
 JP2  | 
 Power LED & keylock  | 
 JP5  | 
| 
 Reset switch  | 
 JP3  | 
 External battery  | 
 JP15  | 
| 
 Note: JP4 may be a 2-pin jumper.  | |||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 ROM wait state select 2 wait states (16MHz CPU)  | 
 J1  | 
 Pins 2 & 3 closed  | |
| 
 ROM wait state select 3 wait states (20MHz CPU)  | 
 J1  | 
 Pins 1 & 2 closed  | |
| 
 Turbo enabled  | 
 JP4  | 
 Pins 2 & 3 closed  | |
| 
 Turbo disabled  | 
 JP4  | 
 Pins 1 & 2 closed  | |
| 
 NPU not installed  | 
 JP6  | 
 Pins 2 & 3 closed  | |
| 
 NPU installed  | 
 JP6  | 
 Pins 1 & 2 closed  | |
| 
 Parity disabled  | 
 JP7  | 
 Open  | |
| 
 Parity enabled  | 
 JP7  | 
 Closed  | |
| 
 RAM wait state select 0 wait states (only if JP9 is open)  | 
 JP8  | 
 Pins 1 & 2 closed  | |
| 
 RAM wait state select 1 wait state (only if JP9 is open)  | 
 JP8  | 
 Pins 2 & 3 closed  | |
| 
 JP8 enabled  | 
 JP9  | 
 Open  | |
| 
 8042 keyboard controller pin 29  | 
 JP9  | 
 Closed  | |
| 
 »  | 
 Factory configured - do not alter (for AMI BIOS & 8042)  | 
 JP10  | 
 Open  | 
| 
 Monitor type select color  | 
 JP11  | 
 Pins 2 & 3 closed  | |
| 
 Monitor type select monochrome  | 
 JP11  | 
 Pins 1 & 2 closed  | |
| 
 Power good signal detect from power supply  | 
 JP13  | 
 Pins 2 & 3 closed  | |
| 
 Power good signal detect from board  | 
 JP13  | 
 Pins 1 & 2 closed  | |
| 
 12v battery charge disabled  | 
 JP14  | 
 Pins 1 & 2 closed  | |
| 
 12v battery charge enabled  | 
 JP14  | 
 Pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 512KB  | 
 (18) 41256  | 
 None  | 
| 
 640KB  | 
 (18) 41256  | 
 (18) 4164  | 
| 
 1MB  | 
 (18) 41256  | 
 (18) 41256  | 
| 
 2MB  | 
 (18) 411000  | 
 None  | 
| 
 4MB  | 
 (18) 411000  | 
 (18) 411000  | 
| 
 DRAM JUMPER CONFIGURATION  | |
| 
 Size  | 
 J3  | 
| 
 512KB  | 
 Pins 1 & 2, 3 & 4 closed  | 
| 
 640KB  | 
 Pins 2 & 4, 3 & 5 closed  | 
| 
 1MB  | 
 Pins 3 & 5, 4 & 6 closed  | 
| 
 2MB  | 
 Pins 1 & 3, 4 & 6 closed  | 
| 
 4MB  | 
 Pins 1 & 3, 4 & 6 closed  | 
| 
 CPU SPEED SELECTION  | |
| 
 Speed  | 
 J2  | 
| 
 16MHz  | 
 Pins 3 & 4, 7 & 8 closed  | 
| 
 20MHz  | 
 Pins 3 & 4, 5 & 6 closed  |