Robert Epprecht wrote: > Clemens Ladisch <clemens@xxxxxxxxxx> writes: > > > (Please note that the table in the P4P800's manual is partly wrong.) > > I'd like to know more about that, The interrupts of the PCI slots are shown correctly, but some of the onboard devices aren't. (Which is strange because the onboard device interrupts have a fixed routing inside the southbridge, and are well documented by Intel.) The onboard devices have these assignments: $ cat /proc/interrupts CPU0 CPU1 ... 16: 13 0 IO-APIC-level usb-uhci, usb-uhci 17: 16 0 IO-APIC-level Intel ICH5 18: 32 0 IO-APIC-level usb-uhci 19: 18 0 IO-APIC-level usb-uhci ... 22: 136945 0 IO-APIC-level SysKonnect SK-98xx 23: 0 0 IO-APIC-level ehci_hcd (where 16 = PIRQA, ..., 23 = PIRQH) HTH Clemens