TMC RESEARCH CORPORATION PAT48PR (VER. 1.3) Processor 80486SX/OPD486/80487SX/80486DX/80486DX2 Processor Speed 25/33/50(internal)/50/66(internal)MHz Chip Set Unidentified Video Chip Set None Maximum Onboard Memory 64MB Maximum Video Memory None Cache 64/128/256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Speaker J1 pins 1 – Power LED & J1 pins 11 - 4 keylock 15 Turbo switch J1 pins 7 & IDE interface LED J2 17 Turbo LED J1 pins 8 & External battery J4 18 Reset switch J1 pins 9 & 32-bit VESA local SL1 & SL2 19 bus slots IDE interface LED J1 pins 10 & 20 USER CONFIGURABLE SETTINGS Function Label Position Battery type select internal JP1 Pins 2 & 3 closed Battery type select external JP1 Open CMOS memory clear JP1 Pins 1 & 2 closed Monitor type select color JP4 Closed Monitor type select monochrome JP4 Open DRAM CONFIGURATION 1 Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (4) 256K x 9 None None None 2MB (4) 256K x 9 (4) 256K x 9 None None 4MB (4) 1M x 9 None None None 5MB (4) 256K x 9 (4) 1M x 9 None None 6MB (4) 256K x 9 (4) 256K x 9 (1) 1M x 36 None 8MB (4) 1M x 9 (4) 1M x 9 None None 9MB (4) 256K x 9 (4) 1M x 9 (1) 1M x 36 None 10MB (4) 256K x 9 (4) 256K x 9 (1) 1M x 36 (1) 1M x 36 12MB (4) 1M x 9 (4) 1M x 9 (1) 1M x 36 None 13MB (4) 256K x 9 (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 16MB (4) 1M x 9 (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 16MB (4) 4M x 9 None None None 20MB (4) 1M x 9 (4) 4M x 9 None None 20MB (4) 4M x 9 (4) 1M x 9 None None 24MB (4) 1M x 9 (4) 4M x 9 (1) 1M x 36 None 24MB (4) 4M x 9 (4) 1M x 9 (1) 1M x 36 None 28MB (4) 1M x 9 (4) 4M x 9 (1) 1M x 36 (1) 1M x 36 28MB (4) 4M x 9 (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 32MB (4) 4M x 9 (4) 4M x 9 None None 36MB (4) 4M x 9 (4) 4M x 9 (1) 1M x 36 None 40MB (4) 4M x 9 (4) 4M x 9 (1) 1M x 36 (1) 1M x 36 48MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 None 52MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (1) 1M x 36 52MB (4) 4M x 9 (4) 1M x 9 (4) 4M x 9 (1) 4M x 36 64MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 DRAM CONFIGURATION 2 Size Bank 0 Bank 1 Bank 2 Bank 3 4MB None None (1) 1M x 36 None 8MB None None (1) 1M x 36 (1) 1M x 36 12MB (4) 1M x 9 None (1) 1M x 36 (1) 1M x 36 16MB (4) 1M x 9 (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 16MB None None (1) 4M x 36 None 20MB None None (1) 4M x 36 (1) 1M x 36 24MB (4) 1M x 9 None (1) 4M x 36 (1) 1M x 36 24MB (4) 4M x 9 None (1) 1M x 36 (1) 1M x 36 28MB (4) 4M x 9 (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 28MB (4) 1M x 9 (4) 1M x 9 (1) 4M x 36 (1) 1M x 36 32MB None None (1) 4M x 36 (1) 4M x 36 36MB (4) 4M x 9 None (1) 4M x 36 (1) 1M x 36 40MB (4) 4M x 9 (4) 4M x 9 (1) 1M x 36 (1) 1M x 36 40MB (4) 1M x 9 (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 48MB (4) 4M x 9 None (1) 4M x 36 (1) 4M x 36 52MB (4) 4M x 9 (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 52MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 1M x 36 64MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 DRAM CONFIGURATION 3 Size Bank 0 Bank 1 Bank 2 Bank 3 4MB None None (1) 1M x 36 None 8MB None None (1) 2M x 36 None 12MB None None (1) 2M x 36 (1) 1M x 36 16MB None None (1) 2M x 36 (1) 2M x 36 16MB None None (1) 4M x 36 None 24MB None None (1) 2M x 36 (1) 4M x 36 32MB None None (1) 8M x 36 None 40MB None None (1) 2M x 36 (1) 8M x 36 40MB None None (1) 8M x 36 (1) 2M x 36 48MB None None (1) 8M x 36 (1) 4M x 36 64MB None None (1) 8M x 36 (1) 8M x 36 DRAM RESISTOR CONFIGURATION Configuration RNB1 RNC1 RND1 RNB2 RNC2 RND2 1 Not Installed Not Not Installed Not installed installed installed installed 2 Not Not Installed Not Not Installed installed installed installed installed 3 Installed Not Not Installed Not Not installed installed installed installed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG0 TAG1 64KB (4) 8K x 8 (4) 8K x 8 (1) 64K x 1 (1) 8K x 8 128KB (4) 32K x 8 None (1) 64K x 1 (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 64K x 1 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size RND RNE RNF 64KB Installed Not installed Not installed 128KB Not installed Installed Not installed 256KB Not installed Not installed Installed CPU SPEED SELECTION Speed JP2 JP3 W13 W14 W15 W16 25MHz 2 & 3 Open Open Open Closed Open 33MHz 2 & 3 Open Open Open Open Closed 50iMHz 2 & 3 Open Open Open Closed Open 50MHz 1 & 2 Closed Open Open Closed Open 66iMHz 2 & 3 Open Open Open Open Closed Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type RNA3 RNB3 RNC3 80486SX Not installed Not installed Installed OPD486 Not installed Installed Not installed 80487SX Not installed Installed Not installed 80486DX Installed Not installed Not installed 80486DX2 Installed Not installed Not installed VL BUS SPEED SELECTION Speed JP5 JP6 <= 33MHz Open Open >33 MHz Closed Closed VL BUS SELECTION CPU speed # of VL-bus RNV1 RNV2 cards 33MHz 2 Not installed Installed 50MHz 2 Not installed Installed 50MHz 1 Installed Not installed 66iMHz 2 Not installed Installed Note: 50MHz with 2 cards installed are not recommend by the manufacturer.