FREE COMPUTER TECHNOLOGY, INC. 80486PCI REV. 1 Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive Processor 25/33/50(internal)/66(internal)MHz Speed Chip Set SIS Max. Onboard 128MB DRAM Cache 128/256/512KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit PCI bus slots (4) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Turbo switch J1 Speaker J4 Turbo LED J2 Power LED & keylock J5 Reset switch J3 32-bit PCI bus slots PC1 - PC4 USER CONFIGURABLE SETTINGS Function Jumper Position » Cache enabled JP4 pins 2 & 3 closed Cache disabled JP4 pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 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) 512K x (1) 512K x NONE NONE 36 36 6MB (1) 256K x (1) 256K x (1) 512K x (1) 512K x 36 36 36 36 6MB (1) 512K x (1) 512K x (1) 256K x (1) 256K x 36 36 36 36 8MB (1) 512K x (1) 512K x (1) 512K x (1) 512K x 36 36 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 10MB (1) 1M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 12MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 1M x 36 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 512K x (1) 512K x 36 36 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 18MB (1) 256K x (1) 256K x (1) 2M x 36 (1) 2M x 36 36 36 18MB (1) 2M x 36 (1) 2M x 36 (1) 256K x (1) 256K x 36 36 20MB (1) 512K x (1) 512K x (1) 2M x 36 (1) 2M x 36 36 36 20MB (1) 2M x 36 (1) 2M x 36 (1) 512K x (1) 512K x 36 36 24MB (1) 2M x 36 (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 24MB (1) 1M x 36 (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 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 34MB (1) 256K x (1) 256K x (1) 4M x 36 (1) 4M x 36 36 36 34MB (1) 4M x 36 (1) 4M x 36 (1) 256K x (1) 256K x 36 36 36MB (1) 512K x (1) 512K x (1) 4M x 36 (1) 4M x 36 36 36 36MB (1) 4M x 36 (1) 4M x 36 (1) 512K x (1) 512K x 36 36 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 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) 2M x 36 (1) 2M x 36 48MB (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 66MB (1) 256K x (1) 256K x (1) 8M x 36 (1) 8M x 36 36 36 66MB (1) 8M x 36 (1) 8M x 36 (1) 256K x (1) 256K x 36 36 68MB (1) 512K x (1) 512K x (1) 8M x 36 (1) 8M x 36 36 36 68MB (1) 8M x 36 (1) 8M x 36 (1) 512K x (1) 512K x 36 36 72MB (1) 1M x 36 (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 72MB (1) 8M x 36 (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 80MB (1) 2M x 36 (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 80MB (1) 8M x 36 (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 96MB (1) 4M x 36 (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 512KB (1) 128K x 8 NONE (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP2 JP3 JP12 JP13 128KB pins 1 & 2 pins 2 & 3 Open Open closed closed 256KB pins 2 & 3 pins 1 & 2 Closed Open closed closed 512KB pins 2 & 3 pins 2 & 3 Closed Closed closed closed CPU TYPE CONFIGURATION Type JP14 JP15 JP16 80486SX pins 1 & 2 Open pins 2 & 3 closed closed 80487SX pins 1 & 2 pins 2 & 3 pins 1 & 2, 3 & closed closed 4 closed ODP486SX pins 1 & 2 pins 2 & 3 pins 1 & 2, 3 & closed closed 4 closed 80486DX/DX2 pins 1 & 2 pins 1 & 2 pins 1 & 2, 3 & closed closed 4 closed Pentium Overdrive pins 2 & 3 pins 2 & 3 pins 1 & 2, 3 & closed closed 4 closed CPU SPEED CONFIGURATION Speed JP5 JP10 JP11 25MHz pins 1 & 2 Open Closed closed 33MHz pins 2 & 3 Closed Open closed 50iMHz pins 1 & 2 Open Closed closed 66iMHz pins 2 & 3 Closed Open closed PCI IRQ14 CONFIGURATION Setting JP27 JP28 ISA IDE pins 2 & 3 closed Closed PCI IDE (edge trigger) pins 4 & 5 closed Open PCI IDE (level trigger) pins 1 & 2 closed Open