Advanced Configuration And Power Interface BIOS Missing IRQ For PCI Slot

This alert condition indicates that the ACPI BIOS does not contain an IRQ for a PCI slot device. This error can occur on a computer that uses a Peripheral Component Interconnect (PCI) bridge that supports message-signaled interrupts but does not support line-based interrupts. Do not ignore this error message if: 1) A yellow explanation mark (!) appears next to a device in Device Manager or 2) the Properties dialog box displays the following message for a device in Device Manager: This device cannot find enough free resources that it can use (Code 12).

Last modified April 17, 2020