EVEREX SYSTEMS, INC.
3000B 386/16/20 (EV-1864)
| 
 Processor  | 
 80386SX  | 
| 
 Processor Speed  | 
 20MHz  | 
| 
 Chip Set  | 
 C & T  | 
| 
 Max. onboard DRAM  | 
 8MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 355mm x 304mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |
| 
 Purpose  | 
 Location  | 
| 
 External battery  | 
 J4  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 Factory configured - do not alter  | 
 W1  | 
 Closed  | 
| » | 
 8-bit-select 5 wait state  | 
 W2  | 
 pins 2 & 3 closed  | 
| 
 8-bit-select 4 wait state  | 
 W2  | 
 pins 1 & 2 closed  | |
| » | 
 CPU speed select normal  | 
 W3  | 
 pins 2 & 3 closed  | 
| 
 CPU speed select high  | 
 W3  | 
 Open  | |
| 
 CPU speed select low  | 
 W3  | 
 pins 1 & 2 closed  | |
| » | 
 16-bit select 2 wait state  | 
 W5  | 
 pins 1 & 2 closed  | 
| 
 16-bit select 1 wait state  | 
 W5  | 
 pins 2 & 3 closed  | |
| » | 
 Factory configured - do not alter  | 
 W7  | 
 Open  | 
| » | 
 Factory configured - do not alter  | 
 W8  | 
 Closed  | 
| » | 
 Monitor type select color  | 
 W9  | 
 pins 1 & 2 closed  | 
| 
 Monitor type select monochrome  | 
 W9  | 
 pins 2 & 3 closed  | |
| 
 Note:Exact location of W1 & W8 is unknown.  | |||
| 
 DRAM CONFIGURATION  | ||||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
 W4  | 
 W6  | 
| 
 1MB  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
 NONE  | 
 NONE  | 
 pins 1 & 2  | 
 pins 1 & 2  | 
| 
 2MB  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
 pins 1 & 2  | 
 pins 1 & 2  | 
| 
 2MB  | 
 (2) 1M x 9  | 
 NONE  | 
 NONE  | 
 NONE  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
| 
 4MB  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
 NONE  | 
 NONE  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
| 
 6MB  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
 NONE  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
| 
 8MB  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
 pins 2 & 3  | 
 pins 2 & 3  | 
| 
 Note:Pins designated should be in the closed position.  | ||||||