MICRONICS COMPUTERS, INC. 80486 ASIC EISA Processor 80486DX/80486DX2 Processor Speed 25/33/50(internal)MHz Chip Set Micronics Max. Onboard DRAM 64MB Cache 64/256KB BIOS Phoenix Dimensions 355mm x 302mm I/O Options 32-bit external memory card slot NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location External keyboard J1 Speaker J22 Parallel port J4 Power LED & keylock J23 Serial port COM1 J5 Reset switch W5 Serial port COM2 J15 Turbo switch W6 Floppy drive interface J17 Turbo LED W7 External battery J18 Local bus expansion S1 slot USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Factory configured - do not W8 pins 1 & 2 alter closed » Factory configured - do not W10 pins 2 & 3 alter closed » Factory configured - do not W11 pins 2 & 3 alter closed » Factory configured - do not W12 pins 1 & 2 alter closed » Floppy drive interface W13 pins 1 & 2 enabled closed Floppy drive interface W13 pins 2 & 3 disabled closed » CPU type select 80486DX-33 W43 Open CPU type select 80486DX2-50 W43 pins 1 & 2 closed » Factory configured - do not W45 pins 1 & 2 alter closed » Factory configured - do not SW1/6 On alter » Factory configured - do not SW1/7 Off alter » Monitor type select color SW1/8 On Monitor type select SW1/8 Off monochrome DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (4) 256K x 9 NONE NONE NONE 2MB (4) 256K x 9 (4) 256K x 9 NONE NONE 3MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 NONE 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 5MB (4) 256K x 9 (4) 1 M x 9 NONE NONE 6MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 NONE 7MB (4) 256K x 9 (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 NONE NONE 9MB (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 NONE 10MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 NONE 13MB (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 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 20MB (4) 1M x 9 (4) 4M x 9 NONE NONE 24MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 NONE 28MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 32MB (4) 4M x 9 (4) 4M x 9 NONE NONE 36MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 NONE 40MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 48MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 NONE 52MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 64MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 DRAM SWITCH CONFIGURATION Size SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 1MB On On On On On 2MB Off On On On On 3MB On Off On On On 4MB 1 Off Off On On On 4MB 2 On On Off On On 5MB On On Off Off On 6MB On Off On Off On 7MB Off On On Off On 8MB Off On Off On On 9MB On Off Off Off On 10MB Off Off On Off On 12MB On Off Off On On 13MB Off Off Off Off On 16MB 1 Off Off Off On On 16MB 3 On On Off On Off 20MB On On Off Off Off 24MB On Off On Off Off 28MB Off On On Off Off 32MB Off On Off On Off 36MB On Off Off Off Off 40MB Off Off On Off Off 48MB On Off Off On Off 52MB Off Off Off Off Off 64MB Off Off Off On Off Note 1 :Use this setting when banks are populated with (4) 256K x 9 SIMMs Note 2 :Use this setting when banks are populated with (4) 1M x 9 SIMMs Note 3 :Use this setting when banks are populated with (4) 4M x 9 SIMMs CACHE CONFIGURATION Size Bank 0 64KB (8) 8K x 8 256KB (8) 32K x 8 CACHE JUMPER CONFIGURATION Size W20 W21 W41 W44 64KB pins 2 & 3 Open Open Open closed 256KB pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed PARALLEL PORT CONFIGURATION Size W3 W4 LPT1 pins 1 & 2 closed pins 2 & 3 closed LPT2 pins 1 & 2 closed pins 1 & 2 closed LPT3 pins 2 & 3 closed pins 1 & 2 closed Disabled pins 2 & 3 closed pins 2 & 3 closed SERIAL COM PORT CONFIGURATION Size W2 W9 COM1 (J5) and COM2 (J15) pins 1 & 2 closed pins 1 & 2 closed enabled COM1 (J5) enabled and COM2 pins 1 & 2 closed pins 2 & 3 closed (J15) disabled COM1 (J5) disabled and COM2 pins 2 & 3 closed pins 1 & 2 closed (J15) enabled COM1 (J5) and COM2 (J15) pins 2 & 3 closed pins 2 & 3 closed disabled