I've got the same chip in an Asus board. Ubuntu fails to boot whenever I've got a second optical drive connected (hangs very early in device detection). In Jaunty, the workaround "hpet=disable" works, but in lucid it does'nt any more, other sources make me believe the parameter disappeared. The only workaround for me is to disable the APIC 2.0 stuff in my BIOS.
I've got the same chip in an Asus board. Ubuntu fails to boot whenever I've got a second optical drive connected (hangs very early in device detection). In Jaunty, the workaround "hpet=disable" works, but in lucid it does'nt any more, other sources make me believe the parameter disappeared. The only workaround for me is to disable the APIC 2.0 stuff in my BIOS.