UNIDENTIFIED PAT48PR Processor 80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 20/25/33/40(internal)/50(internal)/50/66(internal)MHz Chip Set OPTI Max. Onboard DRAM64MB Cache 64/128/256KB BIOS AMI 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 IDE interface LED J1 (pins 10 & 1-4) (to case) 20) Power LED & J1 (pins IDE interface LED J2 keylock 11-15) (to HDD) Turbo switch J1 (pins 7 & External battery J4 17) Turbo LED J1 (pins 8 & 32-bit local bus SL1 & SL2 18) slots Reset switch J1 (pins 9 & 19) USER CONFIGURABLE SETTINGS Function Jumper 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 (GROUP A) 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 (1) 4M x 36 NONE 52MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 1M x 36 52MB (4) 4M x 9 (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 64MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 Note: Group A -- 30-pin SIMMS = Banks 0 & 1 and 72-pin SIMMS = 2 & 3. DRAM CONFIGURATION (GROUP B) 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 12MB (1) 1M x 36 (1) 1M x 36 (4) 1M x 9 NONE 16MB (1) 1M x 36 (1) 1M x 36 (4) 1M x 9 (4) 1M x 9 16MB (1) 4M x 36 NONE NONE NONE 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 24MB (1) 4M x 36 (1) 1M x 36 (4) 1M x 9 NONE 24MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 NONE 28MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 (4) 1M x 9 28MB (1) 4M x 36 (1) 1M x 36 (4) 1M x 9 (4) 1M x 9 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 36MB (1) 4M x 36 (1) 1M x 36 (4) 4M x 9 NONE 40MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 (4) 4M x 9 40MB (1) 4M x 36 (1) 4M x 36 (4) 1M x 9 (4) 1M x 9 48MB (1) 4M x 36 (1) 4M x 36 (4) 4M x 9 NONE 52MB (1) 4M x 36 (1) 4M x 36 (4) 4M x 9 (4) 1M x 9 52MB (1) 4M x 36 (1) 1M x 36 (4) 4M x 9 (4) 4M x 9 64MB (1) 4M x 36 (1) 4M x 36 (4) 4M x 9 (4) 4M x 9 Note: Group B -- = 72-pin SIMMS Banks 0 & 1 and 30-pin SIMMS = 2 & 3. DRAM CONFIGURATION (GROUP C) Size Bank 0 Bank 1 4MB (1) 1M x 36 NONE 8MB (1) 2M x 36 (1) 1M x 36 12MB (1) 2M x 36 (1) 1M x 36 16MB (1) 2M x 36 (1) 2M x 36 16MB (1) 4M x 36 NONE 24MB (1) 2M x 36 (1) 4M x 36 32MB (1) 8M x 36 NONE 40MB (1) 2M x 36 (1) 8M x 36 40MB (1) 8M x 36 (1) 2M x 36 48MB (1) 8M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 Note: Group C -- = 72-pin SIMMS Banks 0 & 1. DRAM TYPE CONFIGURATION Group RNB1/2 RNC1/2 RND1/2 Group A Not installed Installed Not installed Group B Not installed Not installed Installed Group C Installed Not installed Not installed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG (U43) TAG (U44) 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 64K x 1 128KB (4) 32K x 8 NONE (1) 8K x 8 (1) 64K x 1 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 (1) 64K x 1 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 TYPE CONFIGURATION Type RNA3 RNB3 RNC3 80486SX Not installed Not installed Installed 80487SX Not installed Installed Not installed 80486DX/DX2 Installed Not installed Not installed Pentium Not installed Installed Not installed Overdrive CPU SPEED CONFIGURATION Speed JP2 W13 W14 W15 W16 20MHz pins 2 & 3 Open Closed Open Open closed 25MHz pins 2 & 3 Open Open Closed Open closed 33MHz pins 2 & 3 Open Open Open Closed closed 40iMHz pins 2 & 3 Open Closed Open Open closed 50iMHz pins 2 & 3 Open Open Closed Open closed 50MHz pins 1 & 2 Open Open Closed Open closed 66iMHz pins 2 & 3 Open Open Open Closed closed BUS SPEED CONFIGURATION CPU type JP3 JP5 JP6 80486DX-50 Closed Closed Closed All other CPU Open Open Open VESA WAIT STATE CONFIGURATION CPU type VLB cards W21 W22 W23 installed 80486DX-50 1 pin 1 on W21 pins 2 & 3 & pin 1 on closed W22 closed All other 2 Closed Closed pins 1 & 2 CPU closed