Issue

What to Do

How to control the assignments of IRQs to PCI devices. 

In the chipset configuration of the system, verify that an IRQ is enabled for PCI bus use. After checking IRQs used by ISA devices, assign as many available IRQs to PCI devices as possible so the PCI bus can resolve device conflicts. 

How to recover if a Compaq ProLiant 5000 PCI network card fails to netboot due to spurious interrupts occurring during realmode operation. To date, failure has been observed only when the PCI network card uses IRQ 5. 

Use the Compaq System Configuration utility to change the assigned IRQ of the PCI network card to another free IRQ, and save the configuration.