Hello, I apologize in advance if the subject I'm about to discuss is not directly related to SuSE Linux. We have in our lab an Opteron machine (Tyan S2882 motherboard, latest BIOS version, 2 Opteron 242 processors and 2 GB of memory) running SuSE Linux 9.0. The system freezes after several hours of being functioning without sending any message, it just stops responding until it is rebooted. I suppose there is a hardware problem but before sending the machine for maintenance I would like to know the cause of the problem. I have searched the suse-amd64 list for related problems, somebody pointed out in a similar case that maybe the memory is damaged so I tested the memory using memtest86 but it did not find errors. Any clue? Thanks. - Jose Luis