UNITRON COMPUTER, INC. 3486 SYSTEM TYPE 32 Processor 80386DX/CX486DLC/80486SX80487SX/ODP486SX/80486DX/80486DX2 Processor 20/25/33/40/50(internal)/50/66(internal)/80(internal)MHz Speed Chip Set OPTI Max. 32MB Onboard DRAM Cache 32/64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options Floppy drive interface, game port, IDE interface, parallel port, serial ports (2), VGA port NPU Options 80387DX [Image] CONNECTIONS Purpose Location Purpose Location Game port CN1 Turbo LED J19 VGA port CN2 Turbo switch J21 Parallel port CN3 IDE interface LED J22 Serial port 2 CN4 External video ports J23 & J46 Serial port 1 CN5 Floppy drive J26 interface IDE interface J16 Reset switch J58 Power LED & keylock J17 Riser Card SL1 Speaker J18 USER CONFIGURABLE SETTINGS Function Jumper Position » Serial port 2 enabled J3 pins 1 & 2 closed Serial port 2 disabled J3 pins 2 & 3 closed » IDE interface enabled J4 pins 1 & 2 closed IDE interface disabled J4 pins 2 & 3 closed » Floppy drive interface enabled J5 pins 1 & 2 closed Floppy drive interface disabled J5 pins 2 & 3 closed » Parallel port select LPT1 J6 pins 1 & 2 closed Parallel port select LPT2 J6 pins 2 & 3 closed » Serial port 1 enabled J8 pins 1 & 2 closed Serial port 1 disabled J8 pins 2 & 3 closed » Game port enabled J9 pins 1 & 2 closed Game port disabled J9 pins 2 & 3 closed » Hard disk drive installed J10 pins 1 & 2 closed Hard disk drive not enabled J10 pins 2 & 3 closed » Parallel port enabled J11 pins 1 & 2 closed Parallel port disabled J11 pins 2 & 3 closed » NPU disabled J20 pins 2 & 3 closed NPU enabled J20 pins 1 & 2 closed » Floppy drive A/B LED select on J29 pins 1 & 2 J22 Floppy drive A closed Floppy drive A/B LED select on J29 pins 2 & 3 J22 Floppy drive B closed » Floppy/turbo LED select on J19 J30 pins 1 & 2 Floppy (System B or KPUA) closed Floppy/turbo LED select on J19 J30 pins 2 & 3 Turbo (System M or MSO) closed » Factory configured - do not alter J31 Open » Factory configured - do not alter J32 Open » Factory configured - do not alter J33 Open » Factory configured - do not alter J34 Open » Factory configured - do not alter J43 Open » Parity check disabled J44 pins 1 & 2 closed Parity check enabled J44 pins 2 & 3 closed » Monitor type select monochrome J51 pins 1 & 2 closed Monitor type select color J51 pins 2 & 3 closed » Factory configured - do not alter J52 Open » Factory configured - do not alter J53 Open USER CONFIGURABLE SETTINGS (CON’T) Function Jumper Position » Factory configured - do not J54 Open alter » Factory configured - do not J55 Open alter » Factory configured - do not J56 Open alter » Factory configured - do not J57 Open alter Note: Hard drive & floppy drive jumper settings must match. DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 32KB (4) 8K x 8 NONE (1) 8K x 8 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 J35 J36 J37 J38 J39 J40 J41 J42 32KB 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 2 & 3 Open 64KB 2 & 3 1 & 2 1 & 2 2 & 3 1 & 2 1 & 2 1 & 2 Open 128KB 2 & 3 2 & 3 1 & 2 2 & 3 2 & 3 1 & 2 2 & 3 1 & 2 256KB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 1 & 2 2 & 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type J24 J59 80386 pins 1 & 2 closed Open 80486DLC pins 1 & 2 closed Open 80486 pins 2 & 3 closed Closed CPU TYPECONFIGURATION Type J15 80486SX PQFP only Open 80486SX PQFP & 80487SX pins 1 & 2 closed 80486SX PQFP & 80486DX/DX2/ODP486SX pins 2 & 3 closed VESA CPU TYPE CONFIGURATION Type J1 J14 80486SX pins 2 & 3 closed Open 80487SX pins 1, 2 & 3 closed pins 2 & 3 closed ODP486SX pins 1, 2 & 3 closed pins 2 & 3 closed 80486DX/DX2 pins 1, 2 & 3 closed pins 1 & 2 closed CPU SPEED CONFIGURATION (ICS2494-244 CLOCK) Speed J47 J48 J49 J50 20MHz pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed 25MHz pins 2 & 3 pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed closed 32MHz pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed 33MHz pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed closed 40MHz pins 1 & 2 pins 1 & 2 pins 2 & 3 pins 2 & 3 closed closed closed closed 50MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed 66MHz pins 2 & 3 pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed closed 80MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed closed CPU SPEED CONFIGURATION (IMS425 CLOCK) Speed J47 J48 J49 J50 20MHz pins 1 & 2 pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed closed 25MHz pins 1 & 2 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed 32MHz pins 1 & 2 pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed closed 33MHz pins 2 & 3 pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed closed 40MHz pins 2 & 3 pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed closed 50MHz pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed closed 66MHz pins 2 & 3 pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed closed 80MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed SERIAL PORT 1 CONFIGURATION Port 1 J7 COM1 pins 1 & 2 closed COM3 pins 2 & 3 closed SERIAL PORT 2 CONFIGURATION Port 2 J2 COM2 pins 1 & 2 closed COM4 pins 2 & 3 closed