Hi! I do not know if you have solved this but reading here: http://www.alexonlinux.com/smp-affinity-and-proper-interrupt-handling-in-linux It is written that: "So if on your system CPU0 handles all interrupts by default, this probably means that APIC configured ambiguously." So maybe it is nothing wrong with e1000e drivers/cards but with APIC configuration? Mitar