EVEREX SYSTEMS, INC.
3000B 80386SX-20
Processor | 80386SX |
Processor Speed | 20MHz |
Chip Set | Suntac |
Max. Onboard DRAM | 8MB |
Cache | 64KB |
BIOS | AMI |
Dimensions | 355mm x 304mm |
I/O Options | None |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Front panel display | J1 | External battery | J4 |
Speaker | J2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | J6 | N/A |
» | Factory configured - do not alter | W7 | Open |
» | Factory configured - do not alter | W8 | Closed |
» | I/O bus (8-bit) speed select 5 wait states | W2 | pins 1 & 2 closed |
I/O bus (8-bit) speed select 4 wait states | W2 | pins 2 & 3 closed | |
» | Power on speed select fast/switchable from keyboard | W3 | pins 2 & 3 closed |
Power on speed select slow | W3 | pins 1 & 2 closed | |
Power on speed select fast | W3 | Open | |
» | I/O bus (16-bit) speed select 2 wait states | W5 | pins 2 & 3 closed |
I/O bus (16-bit) speed select 1 wait states | W5 | pins 1 & 2 closed | |
» | Monitor type select monochrome | W9 | Closed |
Monitor type select color | W9 | Open |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (2) 256K x 9 | (2) 256K x 9 | NONE | NONE |
2MB | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 |
2MB | (2) 1M x 9 | NONE | NONE | NONE |
4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
DRAM SWITCH CONFIGURATION | ||||
Size | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
1MB | On | On | On | On |
2MB | On | On | On | Off |
2MB | On | Off | Off | On |
4MB | On | Off | On | Off |
6MB | On | Off | Off | Off |
8MB | Off | Off | Off | Off |
DRAM JUMPER CONFIGURATION | ||
Size | W4 | W6 |
1MB | pins 1 & 2 closed | pins 1 & 2 closed |
2MB | pins 1 & 2 closed | pins 1 & 2 closed |
2MB | pins 2 & 3 closed | pins 2 & 3 closed |
4MB | pins 2 & 3 closed | pins 2 & 3 closed |
6MB | pins 2 & 3 closed | pins 2 & 3 closed |
8MB | pins 2 & 3 closed | pins 2 & 3 closed |
SRAM CONFIGURATION | |
Size | Bank 3 |
64KB | (9) 64K x 1 |
Notes:Cache location & chip sizes are unidentified. |