EPSON, INC. ACTION TOWER 3000 Processor 80486SX/80487SX/80486SX2/80486DX/80486DX2/80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Unidentified Max. 64MB Onboard DRAM Cache 64/128/256KB BIOS Unidentified Dimensions 254mm x 218mm I/O Floppy drive interface, game port, IDE interface, parallel port, Options PS/2 mouse port, serial ports (2), VGA port NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port CN1 VGA port CN6 Game interface CN2 Floppy drive interface CN7 Serial port 1 CN3 IDE interface CN8 Serial port 2 CN4 External battery J30 Parallel port CN5 Riser Card SL1 USER CONFIGURABLE SETTINGS Function Jumper Position » Game interface disabled J4 pins 2 & 3 closed Game interface enabled J4 pins 1 & 2 closed » Parallel port LPT select LPT1 J5 pins 1 & 2 closed Parallel port LPT select LPT2 J5 pins 2 & 3 closed » Serial port 1 COM select COM1 J6 pins 1 & 2 closed Serial port 1 COM select COM3 J6 pins 2 & 3 closed » Serial port 2 COM select COM2 J7 pins 1 & 2 closed Serial port 2 COM select COM4 J7 pins 2 & 3 closed » Floppy drive interface enabled J8 pins 1 & 2 closed Floppy drive interface disabled J8 pins 2 & 3 closed » VGA interrupt enabled J10 Closed VGA interrupt disabled J10 Open » Battery type select internal J30 pins 2 & 3 closed Battery type select external J30 Closed CMOS memory clear J30 pins 3 & 4 closed » Parallel port enabled JA pins 1 & 2 closed Parallel port disabled JA pins 2 & 3 closed » Serial port 1 enabled JC pins 1 & 2 closed Serial port 1 disabled JC pins 2 & 3 closed » Serial port 2 enabled JD pins 1 & 2 closed Serial port 2 disabled JD pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (1) 256K x 36 NONE 2MB (1) 256K x 36 (1) 256K x 36 2MB (1) 512K x 36 NONE 3MB (1) 512K x 36 (1) 256K x 36 3MB (1) 256K x 36 (1) 512K x 36 4MB (1) 1M x 36 NONE 5MB (1) 1M x 36 (1) 256K x 36 6MB (1) 1M x 36 (1) 512K x 36 8MB (1) 1M x 36 (1) 1M x 36 8MB (1) 2M x 36 NONE 9MB (1) 2M x 36 (1) 256K x 36 10MB (1) 2M x 36 (1) 512K x 36 12MB (1) 2M x 36 (1) 1M x 36 16MB (1) 2M x 36 (1) 2M x 36 16MB (1) 4M x 36 NONE 17MB (1) 4M x 36 (1) 256K x 36 18MB (1) 4M x 36 (1) 512K x 36 20MB (1) 4M x 36 (1) 1M x 36 24MB (1) 4M x 36 (1) 2M x 36 32MB (1) 4M x 36 (1) 4M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 32MB (1) 8M x 36 NONE 33MB (1) 8M x 36 (1) 256K x 36 34MB (1) 8M x 36 (1) 512K x 36 36MB (1) 8M x 36 (1) 1M x 36 40MB (1) 8M x 36 (1) 2M x 36 48MB (1) 8M x 36 (1) 4M x 36 48MB (1) 4M x 36 (1) 8M x 36 64MB (1) 8M x 36 (1) 8M 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 J23 J24 J25 J26 64KB pins 1 & 2 pins 1 & 2 Open pins 2 & 3 closed closed closed 128KB pins 2 & 3 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed 256KB pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed CPU TYPE CONFIGURATION Type J11 J13 80486SX Open pins 2 & 3 closed 80487SX pins 2 & 3 closed pins 1 & 2, 3 & 4 closed 80486SX2 pins 1 & 2 closed or pins 2 & 3 closed Open 80486DX pins 1 & 2 closed pins 1 & 2, 3 & 4 closed 80486DX2 pins 1 & 2 closed pins 1 & 2, 3 & 4 closed 80486DX4 pins 1 & 2 closed pins 1 & 2, 3 & 4 closed Pentium Overdrive pins 2 & 3 closed pins 1 & 2, 3 & 4 closed CPU SPEED CONFIGURATION Speed J17 25MHz pins 5 & 6 closed 33MHz pins 1 & 2 closed 40MHz pins 1 & 2, 3 & 4 closed 50iMHz pins 5 & 6 closed 50MHz pins 3 & 4 closed 66iMHz pins 1 & 2 closed 75iMHz pins 5 & 6 closed 100iMHz pins 1 & 2 closed CPU VOLTAGE CONFIGURATION Voltage J31 J33 3.3/3.45v pins 5 & 6, 7 & 8 pins 1 & 2 closed closed 3.6v pins 5 & 6, 7 & 8 pins 2 & 3 closed closed 5v pins 1 & 2, 3 & 4 Open closed VIDEO CONFIGURATION Setting J14 J15 On board VGA enabled Closed Closed On board VGA disabled Open Open IDE INTERFACE CONFIGURATION Setting JB JE Enabled pins 1 & 2 closed pins 1 & 2 closed Disabled pins 2 & 3 closed pins 2 & 3 closed