ADVANCED INTEGRATION RESEARCH, INC. 486EI REV. 1.2 Processor 80486SX/80487SX/P23T/80486DX/80486DX2/80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)MHz Speed Chip Set SIS Max. 256MB Onboard DRAM Cache 128/256/512KB BIOS AMI Dimensions 330mm x 218mm I/O 32-bit VESA local bus slots (3) Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location Reset switch J6 Turbo switch J22 Speaker J8 Turbo LED J24 Power LED & keylock J9 32-bit VESA local SL1 - SL3 bus slots DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 2MB (1) 512K x NONE NONE NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 3MB (1) 512K x (1) 256K x NONE NONE 36 36 3MB (1) 256K x (1) 256K x (1) 256K x NONE 36 36 36 3MB (1) 256K x (1) 512K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 4MB (1) 512K x (1) 256K x (1) 256K x NONE 36 36 36 4MB (1) 512K x (1) 512K x NONE NONE 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 5MB (1) 512K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 5MB (1) 256K x (1) 512K x (1) 512K x NONE 36 36 36 5MB (1) 256K x (1) 1M x 36 NONE NONE 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 6MB (1) 1M x 36 (1) 512K x NONE NONE 36 6MB (1) 512K x (1) 512K x (1) 512K x NONE 36 36 36 6MB (1) 512K x (1) 1M x 36 NONE NONE 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 7MB (1) 256K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 8MB (1) 2M x 36 NONE NONE NONE 8MB (1) 1M x 36 (1) 512K x (1) 512K x NONE 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 512K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 9MB (1) 2M x 36 (1) 256K x NONE NONE 36 9MB (1) 256K x (1) 1M x 36 (1) 1M x 36 NONE 36 9MB (1) 256K x (1) 2M x 36 NONE NONE 36 10MB (1) 2M x 36 (1) 256K x (1) 256K x NONE 36 36 10MB (1) 2M x 36 (1) 512K x NONE NONE 36 10MB (1) 1M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 10MB (1) 512K x (1) 1M x 36 (1) 1M x 36 NONE 36 10MB (1) 512K x (1) 2M x 36 NONE NONE 36 11MB (1) 2M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 12MB (1) 2M x 36 (1) 512K x (1) 512K x NONE 36 36 12MB (1) 2M x 36 (1) 1M x 36 NONE NONE 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 12MB (1) 1M x 36 (1) 2M x 36 NONE NONE 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 14MB (1) 2M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 14MB (1) 512K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 16MB (1) 4M x 36 NONE NONE NONE 16MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 NONE 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 17MB (1) 4M x 36 (1) 256K x NONE NONE 36 17MB (1) 256K x (1) 2M x 36 (1) 2M x 36 NONE 36 17MB (1) 256K x (1) 4M x 36 NONE NONE 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 18MB (1) 4M x 36 (1) 512K x NONE NONE 36 18MB (1) 512K x (1) 2M x 36 (1) 2M x 36 NONE 36 18MB (1) 512K x (1) 4M x 36 NONE NONE 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 4M x 36 (1) 512K x (1) 512K x NONE 36 36 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 20MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 20MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 NONE 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 22MB (1) 4M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 24MB (1) 4M x 36 (1) 2M x 36 NONE NONE 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 NONE 24MB (1) 2M x 36 (1) 4M x 36 NONE NONE 25MB (1) 256K x (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36 26MB (1) 512K x (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 28MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 8M x 36 NONE NONE NONE 32MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 NONE 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 33MB (1) 8M x 36 (1) 256K x NONE NONE 36 33MB (1) 256K x (1) 4M x 36 (1) 4M x 36 NONE 36 33MB (1) 256K x (1) 8M x 36 NONE NONE 36 34MB (1) 8M x 36 (1) 256K x (1) 256K x NONE 36 36 34MB (1) 8M x 36 (1) 512K x NONE NONE 36 34MB (1) 512K x (1) 4M x 36 (1) 4M x 36 NONE 36 34MB (1) 512K x (1) 8M x 36 NONE NONE 36 35MB (1) 8M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 36MB (1) 8M x 36 (1) 512K x (1) 512K x NONE 36 36 36MB (1) 8M x 36 (1) 1M x 36 NONE NONE 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 36MB (1) 1M x 36 (1) 8M x 36 NONE NONE 38MB (1) 8M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 40MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 NONE 40MB (1) 8M x 36 (1) 2M x 36 NONE NONE 40MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 40MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 NONE 40MB (1) 2M x 36 (1) 8M x 36 NONE NONE 44MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 NONE 48MB (1) 8M x 36 (1) 4M x 36 NONE NONE 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 48MB (1) 4M x 36 (1) 8M x 36 NONE NONE 49MB (1) 256K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 50MB (1) 512K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 56MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 56MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 NONE 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x 36 NONE NONE NONE 65MB (1) 256K x (1) 8M x 36 (1) 8M x 36 NONE 36 65MB (1) 16M x 36 (1) 256K x NONE NONE 36 66MB (1) 512K x (1) 8M x 36 (1) 8M x 36 NONE 36 66MB (1) 16M x 36 (1) 256K x (1) 256K x NONE 36 36 66MB (1) 16M x 36 (1) 512K x NONE NONE 36 67MB (1) 16M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 NONE 68MB (1) 16M x 36 (1) 512K x (1) 512K x NONE 36 36 68MB (1) 16M x 36 (1) 1M x 36 NONE NONE 70MB (1) 16M x 36 (1) 512K x (1) 512K x (1) 512K x 36 36 36 72MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 NONE 72MB (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 NONE 72MB (1) 16M x 36 (1) 2M x 36 NONE NONE 76MB (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 80MB (1) 16M x 36 (1) 2M x 36 (1) 2M x 36 NONE 80MB (1) 16M x 36 (1) 4M x 36 NONE NONE 80MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 NONE 88MB (1) 16M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 96MB (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 NONE 96MB (1) 16M x 36 (1) 8M x 36 NONE NONE 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 NONE 97MB (1) 256K x (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 36 98MB (1) 512K x (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 36 100MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 104MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 112MB (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 112MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 128MB (1) 16M x 36 (1) 16M x 36 NONE NONE 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 192MB (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 NONE 256MB (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 128KB (4) 32K x 8 NONE 256KB (4) 32K x 8 (4) 32K x 8 512KB (4) 128K x 8 NONE CACHE JUMPER CONFIGURATION Size JC4 JC5 JC9 128KB pins 2 & 3 pins 1 & 2 pins 1 & 2 closed closed closed 256KB pins 1 & 2 pins 1 & 2 pins 4 & 5 closed closed closed 512KB pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed CPU TYPE CONFIGURATION Type J1 J2 J3 80486SX Open Open pins 2 & 3 closed P23T Closed pins 2 & 3 pins 1 & 2 closed closed 80487SX Closed pins 2 & 3 pins 1 & 2 closed closed 80486DX Closed pins 1 & 2 pins 1 & 2 closed closed 80486DX2 Closed pins 1 & 2 pins 1 & 2 closed closed 80486DX4 Closed pins 1 & 2 pins 1 & 2 closed closed Pentium Overdrive Closed pins 2 & 3 pins 1 & 2 closed closed CPU SPEED CONFIGURATION Speed J01 J02 JL2 25MHz Closed Closed Open 33MHz Open Closed Open 40MHz Closed Open Closed 50iMHz Closed Closed Open 50MHz Open Open Closed 66iMHz Open Closed Open 80iMHz Closed Open Closed 100iMHz Open Closed Open CPU VOLTAGE CONFIGURATION Voltage JP12 3.3v pins 3 & 5, 4 & 6 closed 5v pins 1 & 3, 2 & 4 closed