Hi folks,
I haven't followed the previous discussion on this matter, so one question: Is this a coreboot issue? If this noise doesn't occur with the vendor firmware, has anybody checked if coreboot uses the same power management timing settings? (e.g. C4-TIMING_CNT, see [1], there might be more such settings not mentioned in the public datasheet)
Regards, Nico
[1] Intel I/O Controller Hub 7 (ICH7) Family Datasheet Document Number: 307013-003