Changing irq's?

[Erik U.]

I'm having hard time changing irq's on my 5.2.1 box with epox 8rda3g.
I can't change them from BIOS, i can only assign them to a pci device or
reserve them. I dont have any PCI devices, everything execpt graphics 
card is integrated.
So how can i build them on to the kernel. I tried these but i got syntax 
errors:
device          rl at pci? irq 10       # RealTek 8129/8139
device          pcm at pci? irq 5