ROBOTECH, INC. COBRA-XL Processor 80486SX/80486SX2/80487SX/80486DX/SL80486DX/AM486DX2/CX486DX2/ AM486DXL2/ODP486DX2/SL80486DX2/80486DX2/U5S/U5SD/SL-AM486DX4/ AM486DX4/CX486DX4/ODP486DX4/80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set SIS Max. 128MB Onboard DRAM Cache 128/256/512/1024KB BIOS AMI Dimensions 330mm x 218mm I/O 32-bit PCI slots (3), floppy drive interface, game port, green Options PC connector, IDE interfaces (2), parallel port, serial ports (2) NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location IDE interface CN1 Reset switch J2 IDE interface CN2 Green PC connector J3 Game port CN3 Turbo LED J4 Parallel port CN4 Green PC connector J5 Serial port 1 CN5 Turbo switch J6 Serial port 2 CN6 Power LED & keylock J7 Floppy drive interface CN7 External battery J8 Speaker J1 32-bit PCI slots PC1 - PC3 USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not JC5 Open alter » Factory configured - do not JC7 Open alter » Factory configured - do not JP1 N/A alter » Factory configured - do not JP8 N/A alter » STP.CLK enabled JP6 pins 1 & 2 closed SMI OUT enabled JP6 pins 2 & 3 closed » BIOS type select normal mode jp16 pins 2 & 3, 4 & 5 closed BIOS type select update mode jp16 pins 1 & 2, 5 & 6 closed » CMOS memory normal operation JP17 Open CMOS memory clear JP17 Closed » On board battery enabled JP18 Closed On board battery disabled JP18 Open » Factory configured - do not JP19 N/A alter » COM1 enabled JP20 pins 1 & 2 closed COM1 disabled JP20 pins 2 & 3 closed » COM2 enabled JP22 pins 1 & 2 closed COM2 disabled JP22 pins 2 & 3 closed » Parallel port IRQ select IRQ7 JP30 pins 1 & 2 closed Parallel port IRQ select IRQ5 JP30 pins 2 & 3 closed » Floppy drive interface enabled JP32 pins 1 & 2 closed Floppy drive interface disabled JP32 pins 2 & 3 closed » Game port enabled JP35 Closed Game port disabled JP35 Open DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (1) 256K x NONE NONE NONE 36 2MB (1) 256K x (1) 256K x NONE NONE 36 36 2MB (1) 512K x NONE NONE NONE 36 3MB (1) 256K x (1) 256K x (1) 256K x NONE 36 36 36 3MB (1) 512K x (1) 256K x NONE NONE 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 4MB (1) 512K x (1) 512K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 4MB (1) 512K x (1) 256K x (1) 256K x NONE 36 36 36 5MB (1) 512K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 5MB (1) 256K x (1) 1M x 36 NONE NONE 36 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 6MB (1) 512K x (1) 512K x (1) 512K x NONE 36 36 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 8MB (1) 512K x (1) 512K x (1) 512K x (1) 512K x 36 36 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 2M x 36 NONE NONE NONE 9MB (1) 256K x (1) 1M x 36 (1) 1M x 36 NONE 36 9MB (1) 256K x (1) 2M x 36 NONE NONE 36 9MB (1) 2M x 36 (1) 256K x NONE NONE 36 10MB (1) 2M x 36 (1) 256K x (1) 256K x NONE 36 36 11MB (1) 2M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 12MB (1) 1M x 36 (1) 2M x 36 NONE NONE 12MB (1) 2M x 36 (1) 1M x 36 NONE NONE 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 16MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 NONE 17MB (1) 256K x (1) 2M x 36 (1) 2M x 36 NONE 36 17MB (1) 256K x (1) 4M x 36 NONE NONE 36 20MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 NONE 20MB (1) 1M x 36 (1) 4M x 36 NONE NONE 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 20MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 NONE 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 24MB (1) 4M x 36 (1) 2M x 36 NONE NONE 24MB (1) 2M x 36 (1) 4M x 36 NONE NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 25MB (1) 256K x (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 36 28MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 32MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 NONE 33MB (1) 256K x (1) 4M x 36 (1) 4M x 36 NONE 36 33MB (1) 256K x (1) 8M x 36 NONE NONE 36 33MB (1) 8M x 36 (1) 256K x NONE NONE 36 34MB (1) 8M x 36 (1) 256K x (1) 256K x NONE 36 36 35MB (1) 8M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 NONE 36MB (1) 1M x 36 (1) 8M x 36 NONE NONE 36MB (1) 8M x 36 (1) 1M x 36 NONE NONE 40MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 40MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 NONE 40MB (1) 2M x 36 (1) 8M x 36 NONE NONE 40MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 NONE 40MB (1) 8M x 36 (1) 2M x 36 NONE NONE 44MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 48MB (1) 4M x 36 (1) 8M x 36 NONE NONE 48MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 NONE 48MB (1) 8M x 36 (1) 4M x 36 NONE NONE 49MB (1) 256K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 56MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 56MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 64MB (1) 16M x 36 NONE NONE NONE 64MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 NONE 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 65MB (1) 256K x (1) 8M x 36 (1) 8M x 36 NONE 36 65MB (1) 256K x (1) 16M x 36 NONE NONE 36 65MB (1) 16M x 36 (1) 256K x NONE NONE 36 66MB (1) 16M x 36 (1) 256K x (1) 256K x NONE 36 36 67MB (1) 16M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 NONE 68MB (1) 1M x 36 (1) 16M x 36 NONE NONE 68MB (1) 16M x 36 (1) 1M x 36 NONE NONE 72MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 NONE 72MB (1) 2M x 36 (1) 16M x 36 NONE NONE DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 72MB (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 NONE 72MB (1) 16M x 36 (1) 2M x 36 NONE NONE 76MB (1) 16M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 NONE 80MB (1) 4M x 36 (1) 16M x NONE NONE 36 80MB (1) 16M x 36 (1) 2M x 36 (1) 2M x 36 NONE 80MB (1) 16M x 36 (1) 4M x 36 NONE NONE 80MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 88MB (1) 16M x 36 (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 NONE 96MB (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 NONE 96MB (1) 16M x 36 (1) 8M x 36 NONE NONE 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 NONE 96MB (1) 8M x 36 (1) 16M x NONE NONE 36 97MB (1) 256K x (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 36 100MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 104MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 112MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 112MB (1) 16M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 16M x 36 (1) 8M x 36 (1) 8M x 36 NONE 128MB (1) 16M x 36 (1) 16M x NONE NONE 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 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 256KB (4) 64K x 8 NONE (1) 16K 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 JP9 JP10 JP11 JP12 JP13 128KB 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2, 3 & 4 256KB 1 & 2 2 & 3 2 & 3 1 & 2 2 & 3, 4 & 5 256KB 1 & 2 2 & 3 1 & 2 2 & 3 1 & 2, 3 & 4 512KB 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2, 3 & 4 512KB 2 & 3 2 & 3 2 & 3 1 & 2 2 & 3, 4 & 5 1MB 2 & 3 2 & 3 2 & 3 1 & 2 2 & 3, 4 & 5 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JC1 JC2 JC3 JC4 JC6 80486SX 2 & 3 N/A 3 & 4 N/A N/A 80486SX2 2 & 3 N/A 3 & 4 N/A N/A 80487SX 2 & 3 N/A 3 & 4 N/A N/A 80486DX 2 & 3 N/A N/A N/A N/A SL80486DX 2 & 3 N/A 3 & 4 N/A N/A AM486DX2 2 & 3 N/A N/A N/A N/A CX486DX2 2 & 3 N/A 2 & 3 N/A N/A AM486DXL2 2 & 3 N/A N/A N/A N/A ODP486DX2 2 & 3 N/A 3 & 4 N/A N/A SL80486DX2 2 & 3 N/A 3 & 4 N/A N/A 80486DX2 2 & 3 N/A N/A N/A N/A U5S 2 & 3 N/A N/A N/A N/A U5SD 2 & 3 N/A N/A N/A N/A SL AM486DX4 2 & 3 N/A 1 & 2, 3 N/A 4 & 5 & 4 AM486DX4 2 & 3 N/A N/A N/A N/A CX486DX4 1 & 2 1 & 2 1 & 2, 3 N/A 2 & 3 & 4 ODP486DX4 2 & 3 N/A 3 & 4 N/A N/A 80486DX4 2 & 3 N/A 3 & 4 N/A N/A Pentium 2 & 3 N/A 3 & 4 1 & 2 N/A Overdrive Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JC8 JC9 JC10 JC11 JC12 80486SX N/A 2 & 3 3 & 4 4 & 5 1 & 2 80486SX2 N/A 2 & 3 3 & 4 4 & 5 1 & 2 80487SX N/A 2 & 3 2 & 3 4 & 5 1 & 2 80486DX N/A N/A 3 & 4 N/A N/A SL80486DX N/A 2 & 3 3 & 4 4 & 5 1 & 2 AM486DX2 N/A N/A 3 & 4 N/A N/A CX486DX2 2 & 3 1 & 2 3 & 4 2 & 3 1 & 2 AM486DXL2 3 & 4 4 & 5 1 & 2, 3 N/A 1 & 2 & 4 ODP486DX2 N/A 2 & 3 3 & 4 4 & 5 1 & 2 SL80486DX2 N/A 2 & 3 3 & 4 4 & 5 1 & 2 80486DX2 N/A N/A 3 & 4 N/A N/A U5S 3 & 4 N/A 1 & 2 N/A 1 & 2 U5SD 3 & 4 N/A 1 & 2 N/A 1 & 2 SL AM486DX4 N/A 2 & 3 3 & 4 4 & 5 1 & 2 AM486DX4 N/A N/A 3 & 4 N/A N/A CX486DX4 N/A 2 & 3 3 & 4 2 & 3 1 & 2 ODP486DX4 N/A 2 & 3 2 & 3 1 & 2 1 & 2 80486DX4 N/A 2 & 3 3 & 4 4 & 5 1 & 2 Pentium N/A 2 & 3 2 & 3 1 & 2 1 & 2 Overdrive Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JC13 JC14 JC15 Q5 80486SX 2 & 3 N/A N/A 2 & 3, 5 & 6 80486SX2 2 & 3 N/A N/A 2 & 3, 5 & 6 80487SX 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 80486DX 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 SL80486DX 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 AM486DX2 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 CX486DX2 1 & 2, 3 & 2 & 3 N/A 2 & 3, 5 & 4 6 AM486DXL2 1 & 2, 3 & N/A 2 & 3 2 & 3, 5 & 4 6 ODP486DX2 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 SL80486DX2 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 80486DX2 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 U5S 2 & 3 N/A N/A 2 & 3, 5 & 6 U5SD 3 & 4 N/A N/A 2 & 3, 5 & 6 SL AM486DX4 1 & 2, 3 & 1 & 2 N/A N/A 4 AM486DX4 1 & 2, 3 & N/A N/A N/A 4 CX486DX4 1 & 2, 3 & 1 & 2 N/A N/A 4 ODP486DX4 1 & 2, 3 & N/A N/A N/A 4 80486DX4 1 & 2, 3 & N/A N/A N/A 4 Pentium Overdrive 1 & 2, 3 & N/A N/A 2 & 3, 5 & 4 6 Note: Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JP3 JP4 JP5 25MHz Open Open Open 33MHz Closed Closed Open 40MHz Open Closed Open 50iMHz Open Open Open 66iMHz Closed Closed Open 75iMHz Open Open Open 100iMHz Closed Closed Open PARALLEL PORT CONFIGURATION Setting JP24 JP25 JP29 JP31 Printer pins 2 & 3 pins 2 & 3 pins 1 & 2 N/A closed closed closed EPP mode pins 2 & 3 pins 1 & 2 pins 1 & 2 Open closed closed closed ECP/EPP pins 1 & 2 pins 2 & 3 pins 1 & 2 Open closed closed closed EXT, two FDD pins 1 & 2 pins 1 & 2 pins 1 & 2 Open closed closed closed DMA CONFIGURATION DMA JP26 JP27 DMA 3 pins 2 & 3 closed pins 2 & 3 closed DMA 1 pins 1 & 2 closed pins 1 & 2 closed