Manual assignment of resources is needed if there are some conflicts not related to the device capacity after automatic allocation. The simplest example is “hanging” of one device when switching on another one. A system often begins functioning normally after reassignment of interruptions and/or changing the location of a device.
Some problems often occur within the operation of video card. This is due to the fact that your video card has got a collective interruption with other devices, and until it operates in an office mode, your system handles the allocation of device requests. But as soon as you begin playing, the processing of large volumes of information exchanged by a central processor, system memory and video processor begins. In this case the shared use of interruption leads to reducing in productivity of all devices.
Use the parameter “Assign IRQ For VGA” (IRQ to PCI VGA, Allocate IRQ to PCI VGA) to solve this problem. This parameter has got two values: Enabled (Yes) and Disabled (No). If this parameter is enabled, a system assigns a separate interruption to video card that has positive implication for your computer’s productivity during games or while operating with programs that process video streams. Remember that if you assign a separate interruption to video card, you decrease the amount of interruptions for the rest PCI-devices and reduce their interaction with a system. All of these highlight the need to define priorities while using your computer: if an office operation of your computer is primary, it is inappropriate to assign a separate interruption for your video card.
If you operate with outdated PCI-video cards, you can also use the assignment of a separate hardware interruption using the parameter “Slot n IRQ for VGA” where n – an amount of accessible PCI-slots in your computer. A slot with the video card in it and that requires a separate interruption should have a value “Enabled” while the rest slots should have values “Disabled”.