INSTALLATION PROCEDURE FOR PARALLEL BIDIR IN WINDOWS NT4.0 1) Boot into WINDOWS NT without the Parallel BIDIR installed in the computer. 2) Check for available IRQs. Go to Start | Programs | Administrative Tools | Windows NT Diagnostics and enter the Resources Tab. Check for a free IRQ there. NT does not show the IRQ for parallel ports. By default the motherboard Parallel Port uses IRQ7, so assume IRQ7 is not free. If IRQ5 is used then remove the IRQ jumpers completely. 3) Find out which Input/Output Address the OnBoard Parallel port is using. Go to Start | Programs | Administrative Tools | Windows NT Diagnostics and enter the Resources Tab. Then Click the Devices button. Double-click the ParPort device. This shows your existing parallel port addresses. Do not set our card to any of these addresses. Set our card to the next address. For example: on Lava Card LPT0=3bc LPT1=378 LPT2=278 so if you see 378 then set the Lava Card to LPT2 to make it LPT2. 5)Shut down and put our card in the ISA slot. 6) Boot back into Windows NT and verify that our card has installed. Go to Start | Programs | Administrative Tools | Windows NT Diagnostics and enter the Resources Tab. Then Click the Devices button. Double-click the ParPort device. If you see an additional set of input/output ranges then you have successfully installed our card.