AMERICAN MEGATRENDS, INC. SUPER VOYAGER VLB Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2 Processor Speed 20/25/33/50(internal)/50/66(internal) Chip Set AMI Max. Onboard DRAM64MB Cache 64/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options Bus mouse port, floppy drive interface, IDE interface parallel port, serial port (2), 32-bit VESA card slot (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Speaker J33 Serial port 2 J2 Power LED & keylock J34 Serial port 1 J3 Turbo switch J35 IDE interface LED J4 Reset switch J39 Mouse port J5 Parallel port P3 IDE interface J7 Floppy drive interface P4 Cache module J13 32-bit VESA card S1 Turbo LED J32 32-bit VESA card S2 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Serial port 2 (J2) select J10 pins 1 & 2 IRQ3 closed Serial port 2 (J2) select J10 pins 2 & 3 IRQ4 closed » Serial port 1 (J3) select J11 pins 1 & 2 IRQ4 closed Serial port 1 (J3) select J11 pins 2 & 3 IRQ3 closed » Mouse port (J5) enabled J12 pins 2 & 3 closed Mouse port (J5) disabled J12 pins 1 & 2 closed » Factory configured - do not J18 open alter » Factory configured - do not J20 open alter » Factory configured - do not J21 open alter » CMOS memory normal operation J22 pins 2 & 3 closed CMOS memory clear J22 pins 1 & 2 closed » Local bus speed select J40 pins 1 & 2 <=33MHz closed Local bus speed select > 33MH J40 pins 2 & 3 closed » Factory configured - do not SW2/Switch 1 open alter » Monitor type select SW2/Switch 2 open monochrome Monitor type select color SW2/Switch 2 closed 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) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 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 CPU CONFIGURATION CPU Speed J16 J17 J27 80486DX2 25/33MHz pins 1 & 2 pins 1 & 2 pins 1 & 2 closed and closed 3 & 4 closed ODP486SX 25/33MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 closed and closed 3 & 4 closed 80486DX 25/33/50MHz pins 1 & 2 pins 1 & 2 pins 1 & 2 closed and closed 3 & 4 closed 80487SX 25/33MHz pins 2 & 3 pins 1 & 2 pins 1 & 2 closed and closed 3 & 4 closed 80486SX 20/25MHz pins 1 & 2 pins 2 & 3 pins 2 & 3 closed closed closed CACHE CONFIGURATION Size Cache Cacheable Location SW1/Switch 1-4 Module Memory 64KB Series 691 16MB maximum J13 all switches open 256KB Series 691 64MB maximum J13 all switches closed