On Fri, Mar 8, 2013 at 5:04 PM, Steve Thompson <smt at vgersoft.com> wrote: > > Just a wild idea: is the NIC in the system that freezes a Broadcom and in > the other system something else? If so, disable_msi=1 may help. NICs are now both ThinkPenguin cards with an Atheros chipset.. At this point, the systems are identical except that the failing one has an even bigger PSU than is needed (I calculated 650W required and had an 850W in there... Now it's a 1200W :D ).