AUSTIN COMPUTER SYSTEMS 486/DX2 33i/50i(TC-4) Processor 80486DX/80486DX2 Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set C & T Max. Onboard DRAM 32MB Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit external memory card slot NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Speaker JP7 Turbo LED JP10 Power LED & keylock JP8 Turbo switch JP11 Reset switch JP9 External battery JP2 USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not alter J3 N/A » Factory configured - do not alter J4 N/A » CMOS memory normal operation JP3 pins 1 & 2 closed CMOS memory clear JP3 pins 2 & 3 closed » Monitor type select color JP4 pins 1 & 2 closed Monitor type select monochrome JP4 pins 2 & 3 closed » Factory configured - do not alter JP5 N/A » DRAM type select identical JP6 pins 1 & 2 closed DRAM type select mixed JP6 pins 2 & 3 closed » Factory configured - do not alter JP12 N/A » Factory configured - do not alter JP13 N/A » Factory configured - do not alter JP15 N/A » Factory configured - do not alter JP16 N/A Note : The location of J3 is unidentified. 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 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 1 TAG 2 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 32K x 8 NONE 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size SR1 SR2 SR3 SR4 SR5 SR6 SR7 SR8 SR9 SR10 SR11 64KB 2 & 1 & 1 & 1 & 1 & 1 & 2 & 2 & 1 & 1 & 1 & 3 2 2 2 2 2 3 3 2 2 2 128KB 2 & 1 & 1 & 1 & 2 & 1 & 2 & 2 & 1 & 1 & 1 & 3 2 2 2 3 2 3 3 2 2 2 256KB 2 & 2 & 2 & 2 & 2 & 2 & 1 & 2 & 2 & 2 & 2 & 3 3 3 3 3 3 2 3 3 3 3 Note: Pins designated should be in the closed position. BATTERY CONFIGURATION Type JP1 JP2 Internal Closed Open External Open Closed