AMERICAN MEGATRENDS, INC. SUPER VOYAGER VLB-II (VER. 2) Processor 80486SX/80487SX/80486DX/P23T/Pentium Overdrive Processor Speed 20/25/33/50(internal)/50/66(internal)MHz Chip Set AMI Max. Onboard 64MB DRAM Cache 64/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options PS/2 mouse interface, parallel port, serial ports (2), 32-bit VESA local bus slots (2), floppy drive interface, IDE interface NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse interface J1 Reset switch J24 Parallel port J4 Speaker J29 Floppy drive interface J6 Turbo LED J30 IDE interface J7 Power LED & keylock J32 IDE interface LED J8 Turbo switch J33 Serial port 2 J9 32-bit VESA local SL1 & SL2 bus slots Serial port 1 J10 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Parallel port IRQ select J13 pins 1 & 2 IRQ5 closed Parallel port IRQ select J13 pins 2 & 3 IRQ7 closed » Factory configured - do not J14 N/A alter » Factory configured - do not J18 N/A alter » Factory configured - do not J19 N/A alter » Serial port 2 IRQ select J20 pins 1 & 2 IRQ3 closed Serial port 2 IRQ select J20 pins 2 & 3 IRQ4 closed » Serial port 1 IRQ select J21 pins 2 & 3 IRQ4 closed Serial port 1 IRQ select J21 pins 1 & 2 IRQ3 closed » PS/2 mouse enabled J22 pins 1 & 2 closed PS/2 mouse disabled J22 pins 2 & 3 closed » Factory configured - do not J40 N/A alter » Factory configured - do not SW2/1 Off alter » Monitor type select SW2/2 Off monochrome Monitor type select color SW2/2 On 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 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 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 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 64KB (4) 8K x 8 (4) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 CACHE SWITCH CONFIGURATION Size SW1/1 SW1/2 SW1/3 SW1/4 64KB Off Off Off Off 256KB On On On On CPU TYPE CONFIGURATION PQFP type PGA type J43 J44 J45 None 80486SX 2 & 3 N/A N/A None 80487SX 1 & 2, 3 2 & 3 N/A & 4 None 80486DX 1 & 2, 3 1 & 2 N/A & 4 None 80486DX2 1 & 2, 3 1 & 2 N/A & 4 None P23T 1 & 2, 3 2 & 3 N/A & 4 None Pentium 1 & 2, 3 2 & 3 N/A Overdrive & 4 80486SX None N/A N/A Open 80486SX 80486SX 2 & 3 N/A Closed 80486SX 80487SX 1 & 2, 3 2 & 3 Closed & 4 80486SX 80486DX 1 & 2, 3 1 & 2 Closed & 4 80486SX P23T 1 & 2, 3 2 & 3 Closed & 4 80486SX Pentium 1 & 2, 3 2 & 3 Closed Overdrive & 4 80486DX None N/A N/A Open 80486DX 80487SX 1 & 2, 3 2 & 3 Closed & 4 80486DX 80486DX2 1 & 2, 3 1 & 2 Closed & 4 80486DX P23T 1 & 2, 3 2 & 3 Closed & 4 80486DX Pentium 1 & 2, 3 2 & 3 Closed Overdrive & 4 Note: Pins designated should be in the closed position. BUS SPEED CONFIGURATION CPU speed J23 <= 33MHz pins 1 & 2 closed > 33MHz pins 2 & 3 closed