JPN CORPORATION MB386SX Processor 80386SX Processor Speed 16/20/25MHz Chip Set VLSI Max. Onboard DRAM 4MB Cache None BIOS AMI Dimensions 220mm x 220mm I/O Options None NPU Options 80387SX [Image] CONNECTIONS Purpose Location Purpose Location Speaker JP20 Turbo switch JP52 Power LED & keylock JP30 Turbo LED JP56 Reset switch JP51 USER CONFIGURABLE SETTINGS Function Jumper Position » Pipeline mode enabled JP10 closed Pipeline mode disabled JP10 open » BIOS type select 27256 JP23 open JP24 closed BIOS type select 27128 JP23 open JP24 open BIOS type select 27512 JP23 closed JP24 closed » Parity check enabled JP25 closed Parity check disabled JP25 open » Monitor type select color JP31 closed Monitor type select monochrome JP31 open » Power good signal detect from JP55 pins 1 & 2 board closed Power good signal detect from JP55 pins 2 & 3 power supply closed » CMOS memory normal operation JP58 pins 1 & 2 closed CMOS memory clear JP58 pins 3 & 4 closed » Factory configured - do not alter JP59 N/A DRAM CONFIGURATION Size Bank 0 Parity Bank 1 Parity Bank 2 Bank 3 (P-0) (P-1) 512KB (4) (2) NONE NONE NONE NONE 44256 41256 1MB (4) (2) (4) (2) NONE NONE 44256 41256 44256 41256 1.5MB (4) (2) (4) (2) (2) NONE 44256 41256 44256 41256 256K x 9 2MB (4) (2) (4) (2) (2) (2) 256K 44256 41256 44256 41256 256K x x 9 9 2MB NONE NONE NONE NONE (2) 1M NONE x 9 3MB (4) (2) (4) (2) (2) 1M NONE 44256 41256 44256 41256 x 9 4MB NONE NONE NONE NONE (2) 1M (2) 1M x x 9 9