![]() Windows 8/10/11: When the system starts, tap F8 until the Windows boot menu appears, select "safe mode", launch MSI Utility and revert the latest change you made.Windows 7: When the system starts, tap F8 until the Windows boot menu appears and select the "Last Known Good Configuration" option.For devices you don't know they work after changing interrupt mode to MSI, change one device at a time after which restart the system so that if your Windows does not boot anymore you know which device was the problem.You can disable those devices that are not used (for example LAN, onboard audio card, Bluetooth etc.) via BIOS or Device Manager (in Windows Run or Search type devmgmt.msc or right click on Computer->select Manage->select Device Manager).Try searching for them on the original chip manufacturer and not on the motherboard manufacturers page. Before using the MSI Utility, update the drivers as some newer drivers might switch to MSI by default.Some of these devices are listed in the table below. Be advised that not all devices will work in MSI mode and some, if changed, may prevent Windows from booting.Some notes on changing the interrupt request to MSI: Avoid IRQ sharing by changing the interrupt mode to MSI(Message signaled interrupts)Īnother way to avoid IRQ sharing between devices is to change the interrupt mode to MSI for some of those devices with MSI Utility. You can avoid IRQ sharing between devices and fix a IRQ conflict if you change the PCI or PCIe slot for the devices you want to get assigned with a different IRQ. Avoid IRQ sharing by using different PCI or PCIe slot Having two or tree such devices on the same IRQ could impact the performance or functionality of those devices. Ideally, latency sensitive or I/O devices like sound cards, network cards, storage (SATA, NVME, SCSI) drive controllers should have their own IRQ. IRQs are automatically allocated by the motherboard BIOS. Those that have negative (PCI) values are working in MSI (Message signaled interrupts) mode. ![]() ![]() Devices that have positive (PCI) values are working in Line-based interrupts mode. Expand Interrupt by request (IRQ) item category and scroll down to items starting with (PCI)ĭevices that share the same IRQ with other devices are recognized by having the same (PCI) value.In the menu select View -> Resources by connection.Launch Device Manger (in Windows Run or Search type devmgmt.msc or right click on Computer->select Manage->select Device Manager).To show devices by IRQ in Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11, Windows Server 2008, Windows Server 2012 and Windows Server 2016, Windows Server 2019 do the following: ![]()
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