These options configure the legacy IRQ for embedded and slot-based PCI/PCIe devices. Multiple devices can share an IRQ.
The PCI Devices menu displays the configuration settings of the PCI devices installed in the server and allows you to modify the IRQ. Multiple PCI devices can share an interrupt.
To disable a device, select the device and press the Enter key. A menu is displayed with options to change the IRQ, as well as to disable the device.