ELITEGROUP COMPUTER SYSTEMS, INC. UM 486V AIO Processor 80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 25/33/50(internal)/50/66(internal)MHz Chip Set UMC Max. Onboard 32MB DRAM Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2), floppy drive interface, game port, IDE interface, parallel port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Turbo LED J10 Game port J2 Turbo switch J11 Parallel port J4 Reset switch J12 Serial port 1 J5 Speaker J13 Serial port 2 J6 Power LED & keylock J14 Floppy drive J8 IDE LED connector JP12 interface IDE interface J9 32-bit VESA Local bus S1 & S2 connector slots USER CONFIGURABLE SETTINGS Function Jumper Position » Game port enabled JP1 pins 1 & 2 closed Game port disabled JP1 pins 2 & 3 closed » Floppy drive interface enabled JP6 pins 1 & 2 closed Floppy drive interface disabled JP6 pins 2 & 3 closed » Monitor type select color JP13 pins 2 & 3 closed Monitor type select monochrome JP13 pins 1 & 2 closed SERIAL PORT CONFIGURATION Port 1 (J5) Port 2 (J6) JP3 JP7 JP8 JP9 » COM1 COM2 pins 1 pins 1 pins 1 pins 1 & 2 & 2 & 2 & 2 COM1 Disabled pins 2 N/A pins 1 pins 1 & 3 & 2 & 2 Disabled COM2 pins 1 pins 1 N/A pins 2 & 2 & 2 & 3 COM3 COM4 pins 1 pins 2 pins 2 pins 1 & 2 & 3 & 3 & 2 COM3 Disabled pins 2 N/A pins 2 pins 1 & 3 & 3 & 2 Disabled COM4 pins 1 pins 2 N/A pins 2 & 2 & 3 & 3 Disabled Disabled pins 2 N/A N/A pins 2 & 3 & 3 Note:Pins designated should be in the closed position. PARALLEL PORT CONFIGURATION Port LPT JP2 JP4 Enabled LPT2 pins 1 & 2 pins 1 & 2 closed closed Disabled LPT3 pins 2 & 3 pins 2 & 3 closed closed 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 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 JP22 JP23 JP27 JP28 64KB pins 1 & 2 Open Open pins 1 & 2 closed closed 128KB pins 2 & 3 Open Closed pins 2 & 3 closed closed 256KB pins 1 & 2 Closed Closed pins 2 & 3 closed closed CPU TYPE CONFIGURATION Type JP24 JP25 JP26 80486SX N/A pins 2 & 3 Open closed 80486SX (PQFP) Open N/A N/A 80487SX N/A pins 1 & 2 and pins 2 & 3 3 & 4 closed 80486DX N/A pins 1 & 2 and pins 1 & 2 3 & 4 closed 80486DX2 N/A pins 1 & 2 and pins 1 & 2 3 & 4 closed Pentium Overdrive N/A pins 1 & 2 and pins 2 & 3 3 & 4 closed CPU SPEED CONFIGURATION Speed JP18 JP19 JP20 JP21 25MHz Closed Closed Open Open 33MHz Open Closed Open Open 50i MHz Closed Closed Open Open 50MHz Open Open Open Open 66i MHz Open Closed Open Open VESA WAIT STATE/BUS SPEED CONFIGURATION CPU speed Wait states JP15 JP16 £ 33MHz 0 wait states Open Open > 33MHz 1 wait state Closed Closed IDE CONFIGURATION Setting JP5 JP10 Enabled pins 1 & 2 closed pins 1 & 2 closed Disabled pins 2 & 3 closed pins 2 & 3 closed