ADVANCED COMPUTER TECHNOLOGY, LTD. C386 Processor 80386DX Processor Speed 25/33/40MHz Chip Set ACT Max. Onboard DRAM 16MB Cache 32/64/128KB BIOS AMI Dimensions 330mm x 218mm I/O Options None NPU Options 80387/3167 [Image] CONNECTIONS Purpose Location Purpose Location Turbo switch JP33 Power LED & Keylock JP40 Speaker JP35 Reset switch JP41 Turbo LED JP37 External battery JP43 USER CONFIGURABLE SETTINGS Function Jumper Position » CPU speed select 33MHz JP1 pins 1 & 2 closed CPU speed select 25MHz or 40MHz JP1 pins 2 & 3 closed » Cache enabled JP4 pins 1 & 2 closed Cache disabled JP4 pins 2 & 3 closed » I/O channel RAM cacheable JP5 pins 1 & 2 closed I/O channel RAM non-cacheable JP5 pins 2 & 3 closed » System BIOS cacheable JP6 pins 1 & 2 closed System BIOS non-cacheable JP6 pins 2 & 3 closed » Video BIOS cacheable JP7 pins 1 & 2 closed Video BIOS non-cacheable JP7 pins 2 & 3 closed » DRAM speed select fast (70 - JP15 pins 1 & 2 120ns) closed DRAM speed select slow (100 - JP15 pins 2 & 3 150ns) closed » Parity check enabled JP32 Closed Parity check disabled JP32 Open » Bus speed select 8MHz JP34 pins 1 & 2 closed Bus speed select 11MHz JP34 pins 2 & 3 closed » Keyboard controller turbo pin JP38 pins 3 & 4 select 30 closed Keyboard controller turbo pin JP38 pins 5 & 6 select 24 closed Keyboard controller turbo pin JP38 pins 7 & 8 select 23 closed Keyboard controller turbo pin JP38 pins 1 & 2 select none closed » Monitor type select color JP39 pins 1 & 2 closed Monitor type select monochrome JP39 pins 2 & 3 closed » Power good signal detect from JP42 pins 1 & 2 power supply closed Power good signal detect from JP42 pins 2 & 3 board closed » Battery select internal JP44 pins 1 & 2 closed Battery select external JP44 pins 2 & 3 closed CACHE CONFIGURATION Size Bank 0 32KB (5) 8K x 8 128KB (5) 32K x 8 CACHE JUMPER CONFIGURATION Size JP2 JP3 32KB pins 2 & 3 closed pins 2 & 3, 4 & 5, 6 & 7, 8 & 9 closed 128KB pins 1 & 2 closed pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed DRAM CONFIGURATION 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 6MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 NONE 8MB (4) 1M x 9 (4) 1M x 9 NONE NONE 10MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 NONE 16MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 DRAM JUMPER CONFIGURATION Size JP8 JP9 JP10 JP11 JP12 JP13 JP14 1MB 1 & 2 2 & 3 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 2MB 1 & 2 1 & 2 2 & 3 2 & 3 2 & 3 1 & 2 1 & 2 4MB 1 & 2 2 & 3 2 & 3 1 & 2 1 & 2 1 & 2 2 & 3 6MB 2 & 3 1 & 2 2 & 3 1 & 2 1 & 2 2 & 3 1 & 2 8MB 1 & 2 1 & 2 2 & 3 1 & 2 2 & 3 1 & 2 2 & 3 10MB 2 & 3 2 & 3 1 & 2 1 & 2 2 & 3 2 & 3 1 & 2 12MB 1 & 2 2 & 3 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 16MB 1 & 2 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 2 & 3 Note: Pins designated should be in the closed position.