TMC RESEARCH CORPORATION PAT48PX Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2 Processor Speed 20/25/33/40(internal)/50/66(internal)MHz Chip Set OPTI Max. Onboard DRAM 32MB Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit external memory card slot NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location External battery J10 IDE LED in J23 pins 10 & 20 Speaker J23 pins 1 - Power LED & J23 pins 11 - 4 keylock 15 Turbo switch J23 pins 7 & IDE LED out JP12 17 Turbo LED J23 pins 8 & 32-bit external S1 18 memory card Reset switch J23 pins 9 & 19 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP1 Closed Monitor type select monochrome JP1 Open » CMOS memory normal operation JP2 pins 2 & 3 (internal battery) closed CMOS memory normal operation JP2 Open (external battery at J4) CMOS memory clear JP2 pins 1 & 2 closed » Bus speed select CLKIN/4 JP3 Open Bus speed select CLKIN/6 JP3 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) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG (U33) TAG (U34) Resistor Installed 64KB (4) 8K (4) 8K (1) 4K x (1) 8K x RND x 8 x 8 1 8 64KB (4) 8K (4) 8K (1) 16K x (1) 8K x RND x 8 x 8 1 8 64KB (4) 8K (4) 8K (1) 64K x (1) 8K x RND x 8 x 8 1 8 128KB (4) 32K NONE (1) 16K x (1) 8K x RNF x 8 1 8 128KB (4) 32K NONE (1) 64K x (1) 8K x RNF x 8 1 8 256KB (4) 32K (4) 32K (1) 16K x (1) 32K x RNE x 8 x 8 1 8 256KB (4) 32K (4) 32K (1) 64K x (1) 32K x RNE x 8 x 8 1 8 Notes: If DRAM is If DRAM is £ 16MB, all cache sizes may be installed; if DRAM is >16MB and £ 32MB, 128 or 256KB cache must be installed, if DRAM > 32MB, 256KB cache must be installed. (Memory over 32MB would be installed on the proprietary external memory card.) CPU TYPE CONFIGURATION Type RNA RNB RNC 80486SX Not installed Not installed Installed ODP486SX Not installed Installed Not installed 80487SX Not installed Installed Not installed 80486DX Installed Not installed Not installed 80486DX2 Installed Not installed Not installed