EVEREX SYSTEMS, INC. STEP 486 Processor 80486SX Processor Speed 25/33MHz Chip Set Unidentified Video Chip Set None Maximum Onboard Memory 32MB (on external memory card) Maximum Video Memory None Cache Unidentified BIOS Unidentified Dimensions 355mm x 304mm I/O Options External memory card, parallel port, serial ports (2) NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Parallel port CN1 Serial port 2 CN3 Serial port 1 CN2 External memory card SL1 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not alter JP3 Open » Factory configured - do not alter JP4 Pins 2 & 3 closed » Factory configured - do not alter JP6 Open » Factory configured - do not alter JP10 Open » Factory configured - do not alter JP11 Open » Factory configured - do not alter JP12 Open CACHE CONFIGURATION Note: The size of the cache is unidentified. SERIAL PORT INTERRUPT SELECTION IRQ J2 J3 IRQ3 Pins 3 & 4 closed Pins 3 & 4 closed IRQ4 Pins 5 & 6 closed Pins 5 & 6 closed IRQ5 Pins 7 & 8 closed Pins 7 & 8 closed IRQ9 Pins 1 & 2 closed Pins 1 & 2 closed Note: Port 1 interrupts are set by one jumper and Port 2 interrupts are set by the other jumper. The correspondence between ports and jumpers is unidentified. PARALLEL PORT INTERRUPT SELECTION IRQ J1 IRQ5 Pins 3 & 4 closed IRQ7 Pins 5 & 6 closed IRQ9 Pins 1 & 2 closed [Image] DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 None None None 8MB (4) 1M x 9 (4) 1M x 9 None None 16MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 None None None 32MB (4) 4M x 9 (4) 4M x 9 None None