M TECHNOLOGY, INC. R407 VESA 486 Processor 80486SX/CX486DX/80486DX/CX486DX2/80486DX2/80486DX4/P24D/Pentium Overdrive Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Unidentified Max. 128MB Onboard DRAM Cache 64/128/256/512/1024KB BIOS AMI Dimensions 330mm 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 J2 Reset switch J7 Power LED & keylock J3 Green PC connector J8 Speaker J4 Bus mouse port JP60 Turbo switch J5 Green PC connector JP61 Turbo LED J6 Green PC connector SL1 - SL3 USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not alter JP43 N/A » CMOS memory normal operation JP50 pins 1 & 2 closed CMOS memory clear JP50 pins 2 & 3 closed » Monitor type select CGA JP62 Closed Monitor type select JP62 Open monochrome/EGA/VGA DRAM CONFIGURATION (MODE 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 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 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 17MB (4) 256K x 9 (4) 4M x 9 NONE (1) 1M x 36 18MB (4) 256K x 9 (4) 256K x 9 (1) 4M x 36 NONE 20MB (4) 1M x 9 (4) 4M x 9 NONE NONE 24MB (4) 1M x 9 (4) 1M x 9 (1) 4M x 36 NONE 32MB (4) 4M x 9 (4) 4M x 9 NONE NONE 36MB (4) 1M x 9 (4) 4M x 9 (1) 4M x 36 NONE 40MB (4) 1M x 9 (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 48MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 NONE 64MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 64MB (4) 16M x 9 NONE NONE NONE 65MB (4) 256K x 9 (4) 16M x 9 (1) 16M x NONE 36 68MB (4) 1M x 9 (4) 16M x 9 (1) 16M x NONE 36 72MB (4) 1M x 9 (4) 1M x 9 (1) 1M x 36 (1) 16M x 36 80MB (4) 4M x 9 (4) 16M x 9 (1) 16M x NONE 36 96MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 16M x 36 128MB (4) 16M x 9 (4) 16M x 9 NONE NONE DRAM CONFIGURATION (MODE 2) Size Bank 0 Bank 1 Bank 2 Bank 3 1MB NONE NONE (1) 256K x NONE 36 2MB NONE NONE (1) 256K x (1) 256K x 36 36 2MB NONE NONE (1) 512K x NONE 36 4MB NONE NONE (1) 512K x (1) 512K x 36 36 4MB NONE NONE (1) 1M x 36 NONE 5MB NONE NONE (1) 256K x (1) 1M x 36 36 6MB (4) 1M x 9 NONE (1) 256K x (1) 256K x 36 36 DRAM CONFIGURATION (MODE 2 CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 6MB NONE NONE (1) 512K x (1) 1M x 36 36 8MB (4) 1M x 9 NONE (1) 512K x (1) 512K x 36 36 8MB NONE NONE (1) 1M x 36 (1) 1M x 36 8MB NONE NONE (1) 2M x 36 NONE 10MB (4) 1M x 9 (4) 1M x 9 (1) 256K x (1) 256K x 36 36 12MB (4) 1M x 9 (4) 1M x 9 (1) 512K x (1) 512K x 36 36 12MB (4) 1M x 9 NONE (1) 1M x 36 (1) 1M x 36 12MB NONE NONE (1) 1M x 36 (1) 2M x 36 16MB (4) 1M x 9 (4) 1M x 9 (1) 1M 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 17MB NONE NONE (1) 256K x (1) 4M x 36 36 18MB (4) 4M x 9 NONE (1) 256K x (1) 256K x 36 36 18MB NONE NONE (1) 512K x (1) 4M x 36 36 20MB (4) 4M x 9 NONE (1) 512K x (1) 512K x 36 36 20MB NONE NONE (1) 1M x 36 (1) 4M x 36 24MB (4) 1M x 9 (4) 4M x 9 (1) 512K x (1) 512K x 36 36 24MB (4) 4M x 9 NONE (1) 1M x 36 (1) 1M x 36 24MB NONE NONE (1) 2M x 36 (1) 4M x 36 32MB (4) 4M x 9 NONE (1) 2M x 36 (1) 2M x 36 32MB NONE NONE (1) 4M x 36 (1) 4M x 36 32MB NONE NONE (1) 8M x 36 NONE 36MB (4) 4M x 9 (4) 4M x 9 (1) 512K x (1) 512K x 36 36 36MB (4) 4M x 9 NONE (1) 1M x 36 (1) 4M x 36 36MB NONE NONE (1) 1M x 36 (1) 8M x 36 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) 2M x 36 (1) 2M x 36 48MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 48MB NONE NONE (1) 4M x 36 (1) 8M x 36 64MB (4) 4M x 9 (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 64MB NONE NONE (1) 16M x 36 NONE 64MB NONE NONE (1) 8M x 36 (1) 8M x 36 65MB NONE NONE (1) 256K x (1) 16M x 36 36 68MB NONE NONE (1) 1M x 36 (1) 16M x 36 72MB (4) 16M x 9 NONE (1) 1M x 36 (1) 1M x 36 80MB NONE NONE (1) 4M x 36 (1) 16M x 36 96MB (4) 16M x 9 NONE (1) 4M x 36 (1) 4M x 36 128MB NONE NONE (1) 16M x 36 (1) 16M x 36 DRAM JUMPER CONFIGURATION Type JP30 JP31 JP32 JP33 Mode 1 pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed Mode 2 pins 2 & 3 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 256KB (4) 64K x 8 NONE (1) 32K x 8 512KB (4) 64K x 8 (4) 64K x 8 (1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 1MB (4) 128K x 8 (4) 128K x 8 (1) 64K x 8 CACHE JUMPER CONFIGURATION Size JP20 JP21 JP22 JP23 JP24 JP25 JP26 256KB 2 & 3 1 & 2 1 & 2 2 & 3 1 & 2 1 & 2 Open Note: The jumper settings for the remaining cache sizes are unidentified by the manufacturer. Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP1 JP2 JP3 JP4 JP5 80486SX Open 3 & 4 1 & 2 2 & 3 2 & 3 CX486DX 2 & 3 2 & 3 Open 2 & 3 1 & 2 80486DX Open 3 & 4 1 & 2 2 & 3 2 & 3 CX486DX2 2 & 3 2 & 3 Open 2 & 3 1 & 2 80486DX2 Open 3 & 4 1 & 2 2 & 3 2 & 3 80486DX4 Open 3 & 4 1 & 2 2 & 3 2 & 3 P24D Open 1 & 2 2 & 3 1 & 2 1 & 2 Pentium 1 & 2 1 & 2 Open 1 & 2 1 & 2 Overdrive Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP6 JP7 JP8 JP9 JP10 80486SX 1 & 2 2 & 3 Open 2 & 3 3 & 4 CX486DX 2 & 3 1 & 2 3 & 4 1 & 2, 2 & 3 3 & 4 80486DX 1 & 2 2 & 3 3 & 4 1 & 2, 3 & 4 3 & 4 CX486DX2 2 & 3 1 & 2 3 & 4 1 & 2, 2 & 3 3 & 4 80486DX2 1 & 2 2 & 3 3 & 4 1 & 2, 3 & 4 3 & 4 80486DX4 1 & 2 2 & 3 3 & 4 1 & 2, 3 & 4 3 & 4 P24D 1 & 2 2 & 3 3 & 4 1 & 2, 1 & 2, 3 3 & 4 & 4 Pentium 1 & 2 2 & 3 2 & 3 1 & 2, 3 & 4 Overdrive 3 & 4 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP11 JP12 JP13 JP14 JP16 80486SX 4 & 5 Open Open Open 1 & 2 CX486DX 2 & 3 Open Open Open 1 & 2 80486DX 4 & 5 Open Open Open 1 & 2 CX486DX2 2 & 3 Open Open Open 1 & 2 80486DX2 4 & 5 Open Open Open 1 & 2 80486DX4 4 & 5 Open Open Open 1 & 2 P24D 4 & 5 Open 1 & 2 1 & 2 1 & 2 Pentium 1 & 2 Open Open Open 1 & 2 Overdrive Note: Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JP40 JP41 JP42 25MHz Closed Open Closed 33MHz Closed Closed Open 40MHz Open Open Closed 50iMHz Closed Open Closed 50MHz Open Closed Open 66iMHz Closed Closed Open 75iMHz Closed Open Closed 100iMHz Closed Closed Open CPU SPEED CONFIGURATION (80486DX4 ONLY) Speed JP15 2x pins 2 & 3 closed 2.5x pins 1 & 2 closed 3x Open VESA WAIT STATE CONFIGURATION Wait states JP44 0 wait states pins 1 & 2 closed 1 wait state pins 2 & 3 closed BUS SPEED CONFIGURATION CPU speed JP45 <= 33MHz pins 1 & 2 closed > 33MHz pins 2 & 3 closed