I have an external parallel port driven sound device which I want to use on a PS/2 in lieu of an internal sound card, but it needs an IRQ to work. At this point it appears that the LPT1 port is port 3BCh and no interrupt. I've gone into the setup and don't see an option for that. (COM ports however very clearly can be assigned.) Can it use an interrupt? Is the option in the setup but just vague?