FIRST INTERNATIONAL COMPUTER, INC. 386SX-16/20V Processor 80386SX Processor Speed 16/20MHz Chip Set Symphony Max. Onboard DRAM 8MB Cache None BIOS AMI/Award/Phoenix Dimensions 330mm x 218mm I/O Options None NPU Options 80387SX [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED J13 Reset switch J15 Speaker J14 Power LED & keylock J16 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Monitor type select J2 pins 2 & 3 monochrome closed Monitor type select color J2 pins 1 & 2 closed 640K to 1M DRAM re-mapping J5 pins 2 & 3 disabled closed Memory access 2 wait states/ J8 pins 1 & 2 I/O select 6 wait states closed Memory access 1 wait state/ J8 pins 2 & 3 I/O select 4 wait states closed NPU enabled J9 pins 1 & 2 closed NPU disabled J9 pins 2 & 3 closed » NPU mode select synchronous J10 pins 1 & 2 with CPU clock closed NPU mode select synchronous J10 pins 2 & 3 with crystal installed at closed OSC1 CPU speed select 20MHz J11 pins 1 & 2 closed CPU speed select 16MHz J11 pins 2 & 3 closed » CPU speed select fast J12 Open CPU speed select slow J12 pins 2 & 3 closed CPU speed select switchable J12 pins 1 & 2 from keyboard closed » Factory configured - do not J17 N/A alter » Factory configured - do not J18 N/A alter » Shadow RAM enabled SW1/1 On Shadow RAM disabled SW1/1 Off » Factory configured - do not SW1/2 N/A alter DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 512KB (2) 256K x 9 NONE NONE NONE 1MB (2) 256K x 9 (2) 256K x 9 NONE NONE 1.5MB (2) 256K x 9 (2) 256K x 9 (2) 256K x 9 NONE 2MB (2) 256K x 9 (2) 256K x 9 (2) 256K x 9 (2) 256K x 9 2MB (2) 1M x 9 NONE NONE NONE 3MB (2) 256K x 9 (2) 256K x 9 (2) 1M x 9 NONE 4MB (2) 1M x 9 (2) 1M x 9 NONE NONE 5MB (2) 256K x 9 (2) 256K x 9 (2) 1M x 9 (2) 1M x 9 6MB (2) 1M x 9 (2) 1M x 9 (2) 1M x 9 NONE 8MB (2) 1M x 9 (2) 1M x 9 (2) 1M x 9 (2) 1M x 9 DRAM JUMPER/SWITCH CONFIGURATION Size J6 J7 SW1/5 SW1/6 SW1/7 SW1/8 512KB 2 & 3 2 & 3 Off Off Off Off 1MB 2 & 3 2 & 3 On Off Off Off 1.5MB 2 & 3 2 & 3 Off On Off Off 2MB 2 & 3 2 & 3 On On Off Off 2MB 1 & 2 1 & 2 Off Off On On 3MB 2 & 3 1 & 2 Off On On Off 4MB 1 & 2 1 & 2 On Off On On 5MB 2 & 3 1 & 2 On On On Off 6MB 1 & 2 1 & 2 Off On On On 8MB 1 & 2 1 & 2 On On On On Note: Pins designated should be in the closed position. DRAM WAIT STATE/WRITE SELECT CONFIGURATION Wait state Wait select SW1/3 SW1/4 2 2 On On 2 1 On Off 1 1 Off Off BIOS CONFIGURATION Size J3 J4 27128 pins 1 & 2 closed pins 1 & 2 closed 27256 pins 1 & 2 closed pins 2 & 3 closed 27512 pins 2 & 3 closed pins 2 & 3 closed