MSI P6N Diamond User Guide - Page 57
BIOS Setup, IRQ Resource Setup, IRQ 3/4/5/7/9/10/11/14/15
UPC - 816909039429
View all MSI P6N Diamond manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 57 highlights
BIOS Setup IRQ Resource Setup Press to enter the sub-menu and the following screen appears. IRQ 3/4/5/7/9/10/11/14/15 These items specify the bus where the specified IRQ line is used. The settings determine if AMIBIOS should remove an IRQ from the pool of available IRQs passed to devices that are configurable by the system BIOS. The available IRQ pool is determined by reading the ESCD NVRAM. If more IRQs must be removed from the IRQ pool, the end user can use these settings to reserve the IRQ by assigning an [Reserved] setting to it. Onboard I/O is configured by AMIBIOS. All IRQs used by onboard I/O are configured as [Available]. If all IRQs are set to [Reserved], and IRQ 14/15 are allocated to the onboard PCI IDE, IRQ 9 will still be available for PCI and PnP devices. Important IRQ (Interrupt Request) lines are system resources allocated to I/O devices. When an I/O device needs to gain attention of the operating system, it signals this by causing an IRQ to occur. After receiving the signal, when the operating system is ready, the system will interrupt itself and perform the service required by the I/O device. 3-17