I've logged this problem in the Ubuntu forums and somebody suggeested to provide additional cooling to the Southbridge, As I have a separate SATA controller I added a small fan, and have not had the problem since.
See http://ubuntuforums.org/showthread.php?t=1821845 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/658584 Title: system freezes after 30min of uptime To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/658584/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
