[comp.sys.ibm.pc.hardware] Serial ports using AT extended interrupts

bcarlson@cod.NOSC.MIL (Burton C. Carlson) (09/08/90)

Need help finding a serial card that can be setup as COM3 and COM4, using
IRQ11 IRQ12.  Have contacted many sources, have only found cards that use
IRQ2-5.  Any info will be appreciated.