EVEREX SYSTEMS, INC.
STEP 286/20 (EV-1820)
| Processor | 80286 | 
| Processor Speed | 20MHz | 
| Chip Set | Everex | 
| Max. Onboard DRAM | 4MB | 
| SRAM Cache | 32/64/128KB | 
| BIOS | Everex | 
| Dimensions | 330mm x 218mm | 
| I/O Options | 32-bit external memory card slot | 
| NPU Options | 80287 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| External memory card slot | S1 | ||
| DRAM CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | 
| 512KB | (18) 41256 | NONE | NONE | NONE | 
| 1MB | (18) 41256 | (18) 41256 | NONE | NONE | 
| 2MB | (18) 41256 | (18) 41256 | (18) 41256 | (18) 41256 | 
| 2MB | (18) 411000 | NONE | NONE | NONE | 
| 4MB | (18) 411000 | (18) 411000 | NONE | NONE | 
| 8MB | (18) 411000 | (18) 411000 | (18) 411000 | (18) 411000 | 
| Note:Banks 2 and 3 are utilized when a 32-bit external memory card is installed at S1. | ||||
| SRAM CONFIGURATION | ||
| Size | Cache SRAM | Location | 
| 32KB | (4) 8K x 8 | Bank 0 | 
| 64KB | (8) 8K x 8 | Banks 0 & 1 | 
| 128KB | (4) 32K x 8 | Bank 0 |