DD & TT ENTERPRISE USA COMPANY DT-LB134 (36-BIT SIMM VERSION) Processor 80386DX/CX486DLC/80486SX/80486DX/80486DX2/ODP586SX Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set Symphony Max. Onboard DRAM 64MB SRAM Cache 64/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options PS/2 mouse, 32-bit VESA local bus slot NPU Options CX87DLC/80387DX [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED J1/pins 1 & 2 Speaker J2B/pins 1 & 4 Turbo switch J1/pins 3 & 4 Mouse port J11A header Reset switch J1/pins 5 & 6 PS/2 mouse port J11B Power LED & J2A 32-bit VESA S1 keylock local bus USER CONFIGURABLE SETTINGS Function Jumper Position Factory configured-do not alter E2/pins 1 & 2 unknown Factory configured-do not alter E2/pins 3 & 4 unknown » Monitor type select color E2/pins 5 & 6 closed Monitor type select monochrome E2/pins 5 & 6 open ATCLK iOSC/2 E7/1-3, 4-6 closed ATCLK iOSC/1 E7/3-5, 2-4 closed » Mouse port enabled E12 closed Mouse port disabled E12 open » CMOS memory normal operation E13 open CMOS memory clear E13 closed » Onboard speaker enabled J2B/pins 1 & closed 2 Onboard speaker disabled J2B/pins 1 & open 2 Burst mode 3-2-2-2 JP1 closed Burst mode 2-1-1-1 JP1 open Cache wait state select 0 wait JP2 closed states Cache wait state select 1 wait JP2 open state SRAM JUMPER CONFIGURATION Jumper 64K 256K E1A pins 2 & 3 closed pins 1 & 2 closed E1B pins 2 & 3 closed pins 1 & 2 closed E1C open closed E1D open closed E1E open closed E1F pins 1 & 2 closed pins 1 & 2 closed E1G pins 1 & 2 closed pins 1 & 2 closed E1H pins 1 & 2 closed pins 1 & 2 closed E1I pins 1 & 2 closed pins 1 & 2 closed E1J closed closed E1K closed closed SRAM CONFIGURATION Size Cache TAG 64KB (8) 8K x 8 (1) 8K x 4 256KB (8) 32K x 8 (1) 32K x 4 DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank3 1MB 256K x 36 NONE NONE NONE 2MB 256K x 36 256K x 36 NONE NONE 3MB 256K x 36 256K x 36 256K x 36 NONE 4MB 256K x 36 256K x 36 256K x 36 256K x 36 4MB 1MB x 36 NONE NONE NONE 5MB 1MB x 36 256K x 36 NONE NONE 7MB 1MB x 36 256K x 36 256K x 36 256K x 36 8MB 1MB x 36 1MB x 36 NONE NONE 9MB 1MB x 36 1MB x 36 256K x 36 NONE 10MB 1MB x 36 1MB x 36 256K x 36 256K x 36 12MB 1MB x 36 1MB x 36 1MB x 36 NONE 16MB 1MB x 36 1MB x 36 1MB x 36 1MB x 36 16MB 4MB x 36 NONE NONE NONE 17MB 4MB x 36 256K x 36 NONE NONE 19MB 4MB x 36 256K x 36 256K x 36 256K x 36 20MB 4MB x 36 1MB x 36 NONE NONE 28MB 4MB x 36 1MB x 36 1MB x 36 1MB x 36 32MB 4MB x 36 4MB x 36 NONE NONE 34MB 4MB x 36 4MB x 36 256K x 36 256K x 36 40MB 4MB x 36 4MB x 36 1MB x 36 1MB x 36 64MB 4MB x 36 4MB x 36 4MB x 36 4MB x 36 CPU TYPE CONFIGURATION Type E3 E4 E5 E6 E7 E8 80386DX open 3&4,9&10 1&3,4&6 3&4,9&11,10&12, 1&3,4&6 3&4 33 80386DX open 3&4,7&8,9&10 1&3,4&6 3&4,9&11,10&12 1&3,4&6 5&6 40 CX486DLC open 3&4,9&10 1&3,4&6 3&4,9&11,10&12 1&3,4&6 3&4 33 CX486DLC open 3&4,7&8,9&10 1&3,4&6 3&4,9&11,10&12 1&3,4&6 5&6 40 80486SX 2&3 1&2,9&10 3&5,4&6 1&2,5&6,7&9,8&10 1&3,4&6 1&2 20 80486SX 2&3 1&2,9&10 3&5,4&6 1&2,5&6,7&9,8&10 1&3,4&6 3&4,5&6 25 80486SX 2&3 1&2,9&10 3&5,4&6 1&2,5&6,7&9,8&10 1&3,4&6 3&4 33 80486DX 1&2,3&4,5&6 1&2,9&10 3&5,4&6 1&2,5&6,7&9,8&10 1&3,4&6 3&4 33 80486DX2 1&2,3&4,5&6 1&2,9&10 3&5,4&6 1&2,5&6,7&9,8&10 1&3,4&6 3&4,5&6 50 80486DX 1&2,3&4,5&6 1&2,5&6,7&8,9&10 1&3,2&4 1&2,5&6,7&9,8&10 3&5,2&4 3&4,5&6 50 80486DX2 1&2,3&4,5&6 1&2,9&10 3&5,4&6 1&2,5&6,7&9,8&10 1&3,4&6 3&4 66 Notes: Pins indicated should be in the closed position. Early versions of the board (model DT-LB133) do not support the 80486 series processor.