AUSTIN COMPUTER SYSTEMS 486 LX VESA LOCAL BUS WINSTATION Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 25/33/50(Internal)/50/66(Internal)MHz Chip Set SIS Max. Onboard DRAM 32MB 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 Turbo LED J3 Reset switch J6 Turbo switch J4 Power LED & keylock J7 Speaker J5 32-bit VESA local bus S1 & S2 slots USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Factory configured do not JP1 Open alter » Monitor type select color JP2 Closed Monitor type select JP2 Open monochrome » Factory configured do not JP9 Pins 1 & 2 alter closed » Factory configured do not JP14 Pins 1 & 2 alter closed » Factory configured do not JP15 Open alter » Factory configured do not JP16 Open alter » Factory configured do not JP24 Pins 2 & 3 alter open » Factory configured do not JP25 Pins 1 & 2 alter open DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Cache Location TAG 64KB (8) 8K x 8 Banks 0 & 1 (1) 8K x 8 128KB (4) 32K x 8 Bank 0 (1) 8K x 8 256KB (8) 32K x 8 Banks 0 & 1 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size SR1 SR2 SR3 SR4 SR5 SR6 64KB Pins 2 Pins 2 Pins 1 Pins 2 Pins 1 Pins 1 & & 3 & 3 & 2 & 3 & 2 2 128KB Pins 1 Pins 1 Pins 2 Pins 2 Pins 2 Pins 1 & & 2 & 2 & 3 & 3 & 3 2 256KB Pins 2 Pins 2 Pins 2 Pins 2 Pins 2 Pins 2 & & 3 & 3 & 3 & 3 & 3 3 NotePins designated should be in the closed position. CPU TYPE CONFIGURATION CPU Type JP6 JP7 JP8 80486SX Open Open Pins 2 & 3 closed 80487SX Closed Pins 2 & 3 Pins 1 & 2 closed closed 80486DX Closed Pins 1 & 2 Pins 1 & 2 closed closed 80486DX2 Closed Pins 1 & 2 Pins 1 & 2 closed closed CPU SPEED CONFIGURATION Speed JP10 JP11 JP12 JP13 25MHz Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 33MHz Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 50iMHz Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 50MHz Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 66iMHz Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 NotePins designated should be in the closed position. VESA CPU TYPE (ID0 & ID1) CONFIGURATION CPU TYPE JP24 (ID0) JP25 (ID1) 80386 Pins 2 & 3 closed Pins 1 & 2 closed 80486 Pins 2 & 3 closed Pins 1 & 2 closed VESA WAIT STATE (ID2) CONFIGURATION Wait states CPU Speed JP26 0 wait states £ 33MHz Pins 1 & 2 closed 1 wait state > 33MHz Pins 2 & 3 closed VESA WAIT STATE (ID2) CONFIGURATION CPU Speed JP27 <= 33MHz Pins 1 & 2 closed > 33MHz Pins 2 & 3 closed