TMC RESEARCH CORPORATION PET48PM Processor 80486SX/80487SX/80486DX/80486DX2/SL Pentium Overdrive/Pentium Overdrive Processor Speed 25/33/40/50(internal)/66(internal)MHz Chip Set OPTI Max. Onboard 256MB DRAM Cache 128/256KB BIOS Unidentified Dimensions 330mm x 254mm I/O Options 32-bit VESA local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery J2 Reset switch J7 pins 9 & 19 Hard drive LED from J3 Hard drive LED J7 pins 10 & controller to case 20 Speaker J7 pins 1 - 4 Power LED & J7 pins 11 - keylock 15 Turbo switch J7 pins 7 & 32-bit VESA SL1 - SL3 17 local bus slots Turbo LED J7 pins 8 & 18 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation JP1 pins 1 & Open 2 CMOS memory clear JP1 pins 1 & Closed 2 » Battery type select internal JP1 pins 2 & Closed 3 Battery type select external JP1 pins 2 & Open 3 » Monitor type select color JP2 Closed Monitor type select monochrome JP2 Open » ADS delay disabled (CPU £ 33MHz) JP7 pins 1 & 2 closed ADS delay enabled (CPU >33MHz) JP7 pins 2 & 3 closed DRAM CONFIGURATION 1 Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (1) 1M x 36 NONE NONE NONE 8MB (1) 2M x 36 NONE NONE NONE 12MB (1) 2M x 36 (1) 1M x 36 NONE NONE 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 24MB (1) 2M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 36MB (1) 8M x 36 (1) 1M x 36 NONE NONE 40MB (1) 2M x 36 (1) 8M x 36 NONE NONE 40MB (1) 8M x 36 (1) 2M x 36 NONE NONE 48MB (1) 8M x 36 (1) 4M x 36 NONE NONE 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 64MB (1) 16M x NONE NONE NONE 36 72MB (1) 2M x 36 (1) 16M x NONE NONE 36 96MB (1) 8M x 36 (1) 16M x NONE NONE 36 128MB (1) 32M x NONE NONE NONE 36 132MB (1) 32M x (1) 1M x 36 NONE NONE 36 136MB (1) 2M x 36 (1) 32M x NONE NONE 36 136MB (1) 32M x (1) 2M x 36 NONE NONE 36 144MB (1) 32M x (1) 4M x 36 NONE NONE 36 160MB (1) 8M x 36 (1) 32M x NONE NONE 36 160MB (1) 32M x (1) 8M x 36 NONE NONE 36 192MB (1) 32M x (1) 16M x NONE NONE 36 36 256MB (1) 32M x (1) 32M x NONE NONE 36 36 DRAM CONFIGURATION 2 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 DRAM CONFIGURATION 2 (CON'T) Size Bank 0 Bank 1 Bank 2 Bank 3 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) 1M x 36 (1) 4M x 36 NONE NONE 24MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 NONE 24MB (1) 1M x 36 (1) 4M x 36 (4) 1M x 9 NONE 28MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 (4) 1M x 9 28MB (1) 1M x 36 (1) 4M x 36 (4) 1M x 9 (4) 1M x 9 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 36MB (1) 1M x 36 (1) 4M x 36 (4) 4M x 9 NONE 36MB (1) 4M x 36 (1) 4M x 36 (4) 1M x 9 NONE 40MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 (4) 4M x 9 40MB (1) 1M x 36 (1) 4M x 36 (4) 4M x 9 (4) 1M 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) 1M x 36 (1) 4M x 36 (4) 4M x 9 (4) 4M x 9 52MB (1) 4M x 36 (1) 4M x 36 (4) 4M x 9 (4) 1M x 9 64MB (1) 4M x 36 (1) 4M x 36 (4) 4M x 9 (4) 4M x 9 64MB (1) 16M x NONE NONE NONE 36 72MB (1) 1M x 36 (1) 1M x 36 (4) 16M x 9 NONE 80MB (1) 4M x 36 (1) 16M x NONE NONE 36 84MB (1) 1M x 36 (1) 4M x 36 (4) 16M x 9 NONE 84MB (1) 4M x 36 (1) 16M x (4) 1M x 9 NONE 36 88MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 (4) 16M x 9 88MB (1) 4M x 36 (1) 16M x (4) 1M x 9 (4) 1M x 9 36 96MB (1) 4M x 36 (1) 4M x 36 (4) 16M x 9 NONE 96MB (1) 4M x 36 (1) 16M x (4) 4M x 9 NONE 36 100MB (1) 1M x 36 (1) 4M x 36 (4) 4M x 9 (4) 16M x 9 100MB (1) 4M x 36 (1) 16M x (4) 4M x 9 (4) 1M x 9 36 112MB (1) 4M x 36 (1) 4M x 36 (4) 4M x 9 (4) 16M x 9 112MB (1) 4M x 36 (1) 16M x (4) 4M x 9 (4) 4M x 9 36 128MB (1) 16M x (1) 16M x NONE NONE 36 36 132MB (1) 16M x (1) 16M x (4) 1M x 9 NONE 36 36 136MB (1) 1M x 36 (1) 1M x 36 (4) 16M x 9 (4) 16M x 9 136MB (1) 16M x (1) 16M x (4) 1M x 9 (4) 1M x 9 36 36 144MB (1) 4M x 36 (1) 16M x (4) 16M x 9 NONE 36 144MB (1) 16M x (1) 16M x (4) 4M x 9 NONE 36 36 148MB (1) 1M x 36 (1) 4M x 36 (4) 16M x 9 (4) 16M x 9 148MB (1) 16M x (1) 16M x (4) 4M x 9 (4) 1M x 9 36 36 160MB (1) 4M x 36 (1) 4M x 36 (4) 16M x 9 (4) 16M x 9 160MB (1) 4M x 36 (1) 16M x (4) 4M x 9 (4) 16M x 9 36 160MB (1) 16M x (1) 16M x (4) 4M x 9 (4) 4M x 9 36 36 192MB (1) 16M x (1) 16M x (4) 16M x 9 NONE 36 36 208MB (1) 4M x 36 (1) 16M x (4) 16M x 9 (4) 16M x 9 36 208MB (1) 16M x (1) 16M x (4) 4M x 9 (4) 16M x 9 36 36 256MB (1) 16M x (1) 16M x (4) 16M x 9 (4) 16M x 9 36 36 DRAM CONFIGURATION 3 Size Bank 0 Bank 1 Bank 2 Bank 3 4MB NONE NONE (4) 1M x 9 NONE 8MB NONE NONE (4) 1M x 9 (4) 1M x 9 12MB (1) 1M x 36 NONE (4) 1M x 9 (4) 1M x 9 16MB (1) 2M x 36 NONE (4) 1M x 9 (4) 1M x 9 16MB (1) 1M x 36 (1) 1M x 36 (4) 1M x 9 (4) 1M x 9 16MB NONE NONE (4) 4M x 9 NONE 20MB NONE NONE (4) 1M x 9 (4) 4M x 9 24MB (1) 4M x 36 NONE (4) 1M x 9 (4) 1M x 9 24MB (1) 1M x 36 NONE (4) 1M x 9 (4) 4M x 9 28MB (1) 2M x 36 NONE (4) 1M x 9 (4) 4M x 9 28MB (1) 4M x 36 (1) 1M x 36 (4) 1M x 9 (4) 1M x 9 28MB (1) 1M x 36 (1) 1M x 36 (4) 1M x 9 (4) 4M x 9 32MB NONE NONE (4) 4M x 9 (4) 4M x 9 36MB (1) 4M x 36 NONE (4) 1M x 9 (4) 4M x 9 36MB (1) 1M x 36 NONE (4) 4M x 9 (4) 4M x 9 40MB (1) 8M x 36 NONE (4) 1M x 9 (4) 1M x 9 40MB (1) 2M x 36 NONE (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 40MB (1) 4M x 36 (1) 1M x 36 (4) 1M x 9 (4) 4M x 9 40MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 (4) 4M x 9 48MB (1) 4M x 36 NONE (4) 4M x 9 (4) 4M x 9 52MB (1) 8M x 36 NONE (4) 1M x 9 (4) 4M x 9 52MB (1) 4M x 36 (1) 4M x 36 (4) 1M x 9 (4) 4M x 9 52MB (1) 4M x 36 (1) 1M x 36 (4) 4M x 9 (4) 4M x 9 64MB (1) 8M x 36 NONE (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 64MB NONE NONE (4) 16M x 9 NONE 72MB (1) 16M x NONE (4) 1M x 9 (4) 1M x 9 36 80MB NONE NONE (4) 4M x 9 (4) 16M x 9 84MB (1) 16M x NONE (4) 1M x 9 (4) 4M x 9 36 84MB (1) 1M x 36 NONE (4) 4M x 9 (4) 16M x 9 88MB (1) 2M x 36 NONE (4) 4M x 9 (4) 16M x 9 88MB (1) 4M x 36 (1) 16M x (4) 1M x 9 (4) 1M x 9 36 88MB (1) 1M x 36 (1) 1M x 36 (4) 4M x 9 (4) 16M x 9 96MB (1) 16M x NONE (4) 4M x 9 (4) 4M x 9 36 96MB (1) 4M x 36 NONE (4) 4M x 9 (4) 16M x 9 100MB (1) 4M x 36 (1) 16M x (4) 1M x 9 (4) 4M x 9 36 100MB (1) 4M x 36 (1) 1M x 36 (4) 4M x 9 (4) 16M x 9 112MB (1) 8M x 36 NONE (4) 4M x 9 (4) 16M x 9 112MB (1) 4M x 36 (1) 16M x (4) 4M x 9 (4) 4M x 9 36 112MB (1) 4M x 36 (1) 4M x 36 (4) 4M x 9 (4) 16M x 9 128MB NONE NONE (4) 16M x 9 (4) 16M x 9 132MB (1) 1M x 36 NONE (4) 16M x 9 (4) 16M x 9 DRAM CONFIGURATION 3 (CON'T) Size Bank 0 Bank 1 Bank 2 Bank 3 136MB (1) 2M x 36 NONE (4) 16M x 9 (4) 16M x 9 136MB (1) 32M x NONE (4) 1M x 9 (4) 1M x 9 36 136MB (1) 16M x (1) 16M x (4) 1M x 9 (4) 1M x 9 36 36 136MB (1) 1M x 36 (1) 1M x 36 (4) 16M x 9 (4) 16M x 9 144MB (1) 16M x NONE (4) 4M x 9 (4) 16M x 9 36 144MB (1) 4M x 36 NONE (4) 16M x 9 (4) 16M x 9 148MB (1) 32M x NONE (4) 1M x 9 (4) 4M x 9 36 148MB (1) 16M x (1) 16M x (4) 1M x 9 (4) 4M x 9 36 36 148MB (1) 4M x 36 (1) 1M x 36 (4) 16M x 9 (4) 16M x 9 160MB (1) 8M x 36 NONE (4) 16M x 9 (4) 16M x 9 160MB (1) 32M x NONE (4) 4M x 9 (4) 4M x 9 36 160MB (1) 16M x (1) 16M x (4) 4M x 9 (4) 4M x 9 36 36 160MB (1) 4M x 36 (1) 16M x (4) 4M x 9 (4) 16M x 9 36 160MB (1) 4M x 36 (1) 4M x 36 (4) 16M x 9 (4) 16M x 9 192MB (1) 16M x NONE (4) 16M x 9 (4) 16M x 9 36 208MB (1) 32M x NONE (4) 4M x 9 (4) 16M x 9 36 208MB (1) 16M x (1) 16M x (4) 4M x 9 (4) 16M x 9 36 36 208MB (1) 4M x 36 (1) 16M x (4) 16M x 9 (4) 16M x 9 36 256MB (1) 32M x NONE (4) 16M x 9 (4) 16M x 9 36 256MB (1) 16M x (1) 16M x (4) 16M x 9 (4) 16M x 9 36 36 DRAM RESISTOR CONFIGURATION Configuration RND RNE RNF 1 Installed Not installed Not installed 2 Not installed Installed Not installed 3 Not installed Not installed Installed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 16K x 8 128KB (4) 32K x 8 NONE (1) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 16K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP5 JP6 128KB pins 1 & 2 closed pins 1 & 2 closed 256KB pins 2 & 3 closed pins 2 & 3 closed CPU TYPE CONFIGURATION Setting RNA RNB RNC 80486SX Not installed Not installed Installed 80487SX Not installed Installed Not installed 80486DX Installed Not installed Not installed 80486DX2 Installed Not installed Not installed SL Pentium Not installed Installed Not installed Overdrive Pentium Not installed Installed Not installed Overdrive CPU SPEED CONFIGURATION Speed RNG1 RNG2 RNG3 25MHz Installed Not installed Not installed 33MHz Not installed Installed Not installed 40MHz Not installed Not installed Installed 50iMHz Installed Not installed Not installed 66iMHz Not installed Installed Not installed VESA WAIT STATE CONFIGURATION Speed RNG3 » VESA wait state select 1 wait Closed states VESA wait state select 0 wait Open state VESA LOCAL BUS SPEED CONFIGURATION Speed RNG3 » >33MHz Closed £ 33MHz Open