TMC RESEARCH CORPORATION PAT48PG (VER. 2.0)/PAT48PG4 (VER. 1.0C) Processor 80486SX/SL80486SX/CX486DX/80486DX/SL80486DX/80486DX2/ SL80486DX2/80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/83(internal) Speed 100(internal)MHz Chip Set OPTI Max. 128MB Onboard DRAM Cache 128/256KB BIOS Unidentified Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (3), green PC connector Options NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location External battery J3 Reset switch J7 pins 9 & 19 Green PC LED J5 IDE interface LED J7 pins 10 & 20 IDE interface LED J6 Power LED & J7 pins 11 - keylock 15 Speaker J7 pins 1 - 4 Green PC connector J8 Turbo switch J7 pins 7 & 32-bit VESA local SL1 - SL3 17 bus slots Turbo LED J7 pins 8 & 18 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 closed CMOS memory clear JP2 pins 1 & 2 closed Battery type select external JP2 Open » Factory configured - do not JP10 N/A alter » Factory configured - do not JP11 N/A alter » Factory configured - do not W1 N/A alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (1) 1M x 36 NONE NONE NONE 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 1M x 36 NONE (1) 1M x 36 NONE 8MB (1) 2M x 36 NONE NONE NONE 12MB (1) 1M x 36 NONE (1) 1M x 36 (1) 1M x 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 NONE NONE NONE 16MB (1) 2M x 36 NONE (1) 2M x 36 NONE 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE 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 64MB (1) 8M x 36 NONE (1) 8M x 36 NONE 128MB (1) 16M x 36 (1) 16M x 36 NONE NONE 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) 16K x 8 or (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP6 JP7 128KB pins 1 & 2 closed pins 1 & 2 closed 256KB pins 2 & 3 closed pins 2 & 3 closed CACHE TYPE CONFIGURATION Type JP15 JP16 Write back Closed pins 2 & 3 closed Write through Open Open CPU TYPE CONFIGURATION Type RNA1 RNA2 RNA3 RNA4 W8 80486SX Not Not Installed Not Closed installed installed installed CX486DX Not Not Not Installed Closed installed installed installed 80486DX Installed Not Not Not Closed installed installed installed 80486DX2 Installed Not Not Not Closed installed installed installed 80486DX4 Installed Not Not Not Open installed installed installed P24T Not Installed Not Not Closed installed installed installed Note: The 80486DX4 is only available on the PAT48PG4. CPU TYPE CONFIGURATION Type RNB1 RNB2 RNB3 Cyrix series Not installed Not installed Installed 80486 series Installed Not installed Not installed SL80486 series Not installed Installed Not installed CPU SPEED CONFIGURATION Speed JP5 JP12 JP13 JP14 25MHz 1 & 2, 5 & 1 & 2 Open Open 6 33MHz 1 & 2, 3 & 1 & 2 Open Open 4 40MHz 3 & 4, 5 & 2 & 3 Open Closed 6, 7 & 8 50iMHz 1 & 2, 5 & 1 & 2 Open Open 6 50MHz 1 & 2, 5 & 2 & 3 Closed Closed 6, 7 & 8 66iMHz 1 & 2, 3 & 1 & 2 Open Open 4 75iMHz 1 & 2, 5 & 1 & 2 Open Open 6 80iMHz 3 & 4, 5 & 2 & 3 Open Closed 6, 7 & 8 83iMHz 1 & 2, 3 & 1 & 2 Open Open 4 100iMHz 1 & 2, 3 & 1 & 2 Open Open 4 Note: Pins designated should be in the closed position.