Greetings, Usually, they just hang. Occasionally, there will be a series of OOPS first (likely memory corruption), but usually, it just goes away silently. It might be worth instrumenting the power good line from the power supply (or just try switching with the known good node and see if they exchange behavoiur).
G'day, sjames Quoting Justin Cormack <[EMAIL PROTECTED]>: > > > > Greetings, > > > > The single K7 boards may well have problems (I haven't tested those as > extensively), however, the Tiger, and the newer Thunder revision (the > one with a heatsink glued to the northbridge) seem capable of being > quite solid once the bum boards are screened out. They are very touchy > about their power. I'm rejecting >20% of the power supplies I get due to > instability which develops after several hours at 100% CPU. Anything > less stressful than that and they seem fine. It makes testing hard. Just > to keep things nice and confusing, the P.S. problem looks a lot like a > flaky mainboard. Once I get a good supply in the system, and keep it in > a cool room with good airflow, they work great. > > > > The airflow is as important as the temperature. A rack of these things > will form a 'bubble' of hot air around them even in a perfectly cool > room unless they get direct airflow. A proper datacenter environment is > more than adequate. > > What are the symptoms you get? I have a problematic machine at the > moment, > just seems to reboot itself sometimes in heavy usage. But I have > another > that is fine so far (48 CPU days on one process at 100% CPU). > > Justin > ----------------------------steven james, director of research, linux labs LinuxBIOS Cluster Solutions 230 peachtree st nw ste 2705 High-Speed Colocation, Hosting, atlanta.ga.us 30303 Linux Hardware, Development & Support http://www.linuxlabs.com * Visit us at SuperComputing 2002, Booth 1441 * office/fax 404.577.7747/3 --------------------------------------------------------------------------
