Martin wrote: >> Completely reproducible. All I need to do is start 1-4 copies of >> mprime. With one copy the system will actually run for quite some >> time, with 4 copies it takes about 2minutes. > > That /could/ suggest a thermal problem with the CPU or PSU or > motherboard components where something is slowly getting too hot under > load...
I would tend to agree, except I've been monitoring temperatures (with lm_sensor) and CPU-temp barely goes higher than 55-56C. I'm sure it would with e.g. 4 copies of mprime, but with 2 it stays in that range. > There is another possibility that's just hit discussion in various > forums... As a test, can you disable Core #2 (the 3rd core as numbered > 0 1 2 3) and try your tests again? I know there is a control register for that, but I think I'd have to write some code to get to it :-) Unless you know of a (linux-based) utility that will do it? > Also, can you _underclock_ the system and again retest? > Yep, just tried running the memory at 667MHz (normally rated for 800MHz), no change. I couldn't find a BIOS option that would let me underclock the CPU. /Per Jessen, Zürich _______________________________________________ Prime mailing list [email protected] http://hogranch.com/mailman/listinfo/prime
