irq associated with bios and cpus for Optiplex gx100

[scott921]

I am looking for which IRQ is assoicated with the following items for my pc Optiplex gx100:
BIOS
CPUs
System bus
If anybody can shed some light I would appreciate it.

Tks:)

[Psycho Logical]

In Device Manager, select Computer, click the Properties button, select the Interrupt request option. Behold.

For a processor "family" like x86, many IRQ numbers are standardized. Things like the system timer, the disk controllers, and the keyboard and mouse ports are always assigned the same default IRQ number, and so the speed or model of your particular system is not really a consideration.

The BIOS has no IRQ number assigned to itself. The BIOS or a Plug and Play operating system assigns IRQs to other devices that require one. For some devices, the user can override an assignment to resolve a conflict.

The main job of the CPU is as an arbiter and processor of IRQs. Since nothing is requested from it, and it does not request anything from itself, it does not need to have an IRQ.