DEICO ELECTRONICS, INC. 386SX-MIDGET Processor 80386SX Processor Speed 16/20MHz Chip Set OPTI Max. Onboard DRAM 8MB Cache None BIOS AMI Dimensions 220mm x 220mm I/O Options Floppy drive interface, IDE interface, Parallel port, Serial port (2) NPU Options 80387SX [Image] DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 0 Bank 1 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) 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 CONNECTIONS Purpose Location Purpose Location Serial port 1 J13 Reset switch J19 Serial port 2 J14 Power LED & J20 keylock Parallel port J15 Speaker J21 IDE interface J16 Turbo switch J22/pins 1 & 2 Floppy drive J17 Turbo LED J22/pins 3 & 4 interface IDE interface LED J18 USER CONFIGURABLE SETTINGS Function Jumper Position » Parallel port (J15) select LPT1 W1 pins 1 & 2 at 378h closed Parallel port (J15) select LPT2 W1 pins 2 & 3 at 278h closed Parallel port (J15) disabled W1 pins 3 & 4 closed » Serial port 1 (J13) select COM1 W2 pins 1 & 2 at 3F8h closed Serial port 1 (J13) select COM3 W2 pins 2 & 3 at 3E8h closed Serial port 1 (J13) disabled W2 pins 3 & 4 closed » Serial port 2 (J14) select COM2 W3 pins 1 & 2 at 2F8h closed Serial port 2 (J14) select COM4 W3 pins 2 & 3 at 2E8h closed Serial port 2 (J14) disabled W3 pins 3 & 4 closed » Parallel port (J15) select IRQ7 W4 pins 1 & 2 closed Parallel port (J15) select IRQ5 W4 pins 2 & 3 closed Parallel port (J15) select W4 pins 3 & 4 disabled closed » IRQ3 select serial port 2 (J14) W5 pins 1 & 2 closed IRQ3 select serial port 1 (J13) W5 pins 2 & 3 closed IRQ3 disabled W5 pins 3 & 4 closed » IRQ4 select serial port 1 (J13) W6 pins 2 & 3 closed IRQ4 select serial port 2 (J14) W6 pins 1 & 2 closed IRQ4 disabled W6 pins 3 & 4 closed » IRQ5 disabled W7 pins 3 & 4 closed IRQ5 select serial port 2 (J14) W7 pins 1 & 2 closed IRQ5 select serial port 1 (J13) W7 pins 2 & 3 closed » IRQ9 disabled W8 pins 3 & 4 closed IRQ9 select serial port 2 (J14) W8 pins 1 & 2 closed IRQ9 select serial port 1 (J13) W8 pins 2 & 3 closed » Floppy drive interface enabled W9 pins 1 & 2 closed Floppy drive interface disabled W9 pins 2 & 3 closed » IDE interface enabled W10 pins 1 & 2 closed IDE interface disabled W10 pins 2 & 3 closed » Monitor type select color W11 pins 1 & 2 closed Monitor type select monochrome W11 pins 2 & 3 closed » Speaker select internal W12 pins 1 & 2 closed Speaker select external W12 pins 2 & 3 closed » Factory configured - do not alter W13 open » Pipeline mode enabled W14 pins 1 & 2 closed Pipeline mode disabled W14 pins 2 & 3 closed