INFORMTECH INTERNATIONAL, INC. IT486SMVG MINI Processor 80486SX/80487SX/CX486DX/80486DX/ODP486SX CX486DX2/80486DX2/Pentium Overdrive Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set FOREX Max. Onboard DRAM64MB Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED J6 External battery JP1 Speaker J7 32-bit VESA Local bus S1 slot Turbo switch J8 32-bit VESA Local bus S2 slot Power LED & keylock J9 32-bit VESA Local bus S3 slot Reset switch J10 USER CONFIGURABLE SETTINGS Function Jumper Position » CPU PQFP enabled JP5 Open CPU PQFP disabled JP5 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE 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 4 CACHE JUMPER CONFIGURATION Size JP8A JP8B JP8C 64KB pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed 128KB pins 1 & 2 pins 2 & 3 pins 1 & 2 closed closed closed 256KB pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed CPU TYPE CONFIGURATION Type JP2 JP3 JP4 JP12 JP20 80486SX pins 2 & pins 2 & pins 2 & pins 1 & N/A 3 3 3 2 80487SX pins 2 & pins 1 & pins 1 & pins 1 & N/A 3 2 2 2 CX486DX N/A N/A N/A N/A Open 80486DX pins 1 & pins 1 & pins 1 & pins 1 & N/A 2 2 2 2 80486DX (PQFP) pins 2 & pins 2 & pins 2 & pins 1 & N/A 3 3 3 2 ODP486SX pins 2 & pins 1 & pins 1 & pins 1 & N/A 3 2 2 2 CX486DX2 N/A N/A N/A N/A Closed 80486DX2 pins 1 & pins 1 & pins 1 & pins 1 & N/A 2 2 2 2 Pentium pins 1 & pins 1 & pins 1 & pins 2 & N/A Overdrive 2 2 2 3 Note:Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JP7A JP7B JP7C 20MHz Open Closed Closed 25MHz N/A Open Open 33MHz Open Open Open 40MHz Closed Closed Open 50i MHz N/A Open Open 50MHz Open Closed Open 66i MHz Open Open Open VESA WAIT STATE/BUS SPEED CONFIGURATION CPU speed Wait states JP10 JP11 < 33 MHz 0 wait states pins 1 & 2 pins 1 & 2 closed closed > 33 MHz 1 wait state pins 2 & 3 pins 2 & 3 closed closed