UNIDENTIFIED SAB-757 Data bus: 16-bit, ISA Size: Half-length, full-height card Hard drive supported: Two IDE (AT) interface drives Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives [Image] CONNECTIONS Function Location 25-pin parallel port CN1 9-pin serial port 1 - external CN2 10-pin serial port 2 - internal CN3 Game port CN4 34-pin control cable connector - floppy drive CN5 40-pin IDE (AT) Interface connector CN6 2-pin connector - drive active LED JP5 USER CONFIGURABLE SETTINGS Function Location Setting » IDE port enabled JP1/jumper A Pins 2 & 3 closed IDE port disabled JP1/jumper A Pins 1 & 2 closed » Floppy drive enabled JP1/jumper B Pins 2 & 3 closed Floppy drive disabled JP1/jumper B Pins 1 & 2 closed SERIAL PORT 1 CONFIGURATION COM/Address JP1/Jumper C JP1/Jumper D » COM1/3F8h Pins 2 & 3 closed Pins 1 & 2 closed COM3/3E8h Pins 1 & 2 closed Pins 2 & 3 closed COM4/2E8h Pins 2 & 3 closed Pins 2 & 3 closed Disabled Pins 1 & 2 closed Pins 1 & 2 closed SERIAL PORT 2 CONFIGURATION COM/Address JP1/Jumper E JP1/Jumper F » COM2/2F8h Pins 2 & 3 closed Pins 1 & 2 closed COM3/3E8h Pins 2 & 3 closed Pins 2 & 3 closed COM4/2E8h Pins 1 & 2 closed Pins 2 & 3 closed Disabled Pins 1 & 2 closed Pins 1 & 2 closed PARALLEL PORT CONFIGURATION LPT/Address JP1/Jumper G JP1/Jumper H » LPT1/3BCh Pins 2 & 3 closed Pins 2 & 3 closed LPT2/378h Pins 1 & 2 closed Pins 2 & 3 closed LPT3/278h Pins 2 & 3 closed Pins 1 & 2 closed Disabled Pins 1 & 2 closed Pins 1 & 2 closed PARALLEL PORT INTERRUPT SELECT IRQ JP1 » IRQ7 Pins 2 & 3 closed IRQ5 Pins 1 & 2 closed