RajeswariKnowledge Contributor									
															
						After installing a sound card, the system locks up when a parallel port tape backup unit is also used. What is most likely the problem?
													After installing a sound card, the system locks up when a parallel port tape backup unit is also used. What is most likely the problem?												
												
												
		
                    
An IRQ (Interrupt Request) is a signal sent by a device to the CPU