MICRONICS COMPUTERS, INC. JX30 VL-BUS Processor 80486SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set Micronics Max. Onboard DRAM64MB Cache 64/128/256KB BIOS Phoenix Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, parallel port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location IDE interface CN1 Power LED & keylock J34 Floppy drive interface CN2 32-bit VESA Local S1 bus slot External battery J8 32-bit VESA Local S2 bus slot External keyboard J10 Hard drive LED W11 connector Serial port (COM1) J12 Reset switch W12 Parallel port J15 Turbo LED W13 Serial port (COM2) J16 Turbo switch W14 Speaker J33 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Factory configured - do not SW1/switch 2 On alter » Factory configured - do not SW1/switch 3 Off alter » Factory configured - do not SW1/switch 4 Off alter » Parallel port unidirectional W5 pins 1 & 2 (for printer) closed Parallel port bi-directional W5 pins 2 & 3 closed » Monitor type select color W6 Closed Monitor type select monochrome W6 Open » Factory configured - do not W7 Open alter » CMOS memory normal operation W8 pins 2 & 3 closed CMOS memory clear W8 pins 1 & 2 closed » Factory configured - do not W20 pins 1 & 2 alter closed DALLAS Real Time Clock memory W31 Closed clear Real Time Clock normal W31 Open operation » Local bus Bus-Mastering W40 Open peripherals enabled Local bus Bus-Mastering W40 Closed peripherals disabled REAL TIME CLOCK CONFIGURATION Real Time Clock W1 DALLAS Real Time Clock Closed MOTOROLA 146818 Open DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 6MB (1) 256K x (1) 256K x (1) 1M x 36 NONE 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 10MB (1) 256K x (1) 256K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 NONE NONE NONE 18MB (1) 256K x (1) 256K x (1) 4M x 36 NONE 36 36 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 24MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 NONE 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 40MB (1) 1M x 36 (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size W64 W65 W66 W67 W68 64KB pins 1 & pins 1 & pins 2 & pins 2 & pins 1 & 2 2 2 3 3 128KB pins 2 & pins 1 & pins 1 & pins 1 & pins 2 & 3 3 2 2 2 256KB pins 2 & pins 2 & pins 2 & pins 2 & pins 2 & 3 3 3 3 3 Note:Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type W70 W71 80486SX pins 1 & 2 closed N/A 80486DX pins 2 & 3 closed pins 2 & 3 closed ODP486SX N/A pins 1 & 2 closed 80486DX2 pins 2 & 3 closed pins 2 & 3 closed Pentium Overdrive pins 2 & 3 closed pins 2 & 3 closed CPU SPEED CONFIGURATION Speed SW1/switch 1 25MHz On 33MHz Off 50i MHz On 66i MHz Off