我有一台全新的计算机，到目前为止运行良好，但现在它会随机冻结（完全冻结，鼠标无法移动），然后在冻结几秒钟后重新启动。
日志文件未显示任何内容：
May 8 16:40:44 malmignatta whoopsie[1062]: online
May 8 16:42:02 whoopsie[1062]: last message repeated 2 times
May 8 17:09:01 malmignatta CRON[7057]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))
May 8 17:17:01 malmignatta CRON[7167]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
May 8 17:18:54 malmignatta kernel: imklog 5.8.11, log source = /proc/kmsg started.
May 8 17:18:54 malmignatta rsyslogd: [origin software="rsyslogd" swVersion="5.8.11" x-pid="774" x-info="http://www.rsyslog.com"] start
May 8 17:18:54 malmignatta rsyslogd: rsyslogd's groupid changed to 103
May 8 17:18:54 malmignatta rsyslogd: rsyslogd's userid changed to 101
May 8 17:18:54 malmignatta rsyslogd-2039: Could not open output pipe '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
May 8 17:18:54 malmignatta bluetoothd[748]: Failed to init gatt_example plugin
May 8 17:18:54 malmignatta bluetoothd[748]: Bluetooth Management interface initialized
May 8 17:18:54 malmignatta kernel: [ 0.000000] Initializing cgroup subsys cpuset
May 8 17:18:54 malmignatta kernel: [ 0.000000] Initializing cgroup subsys cpu
May 8 17:18:54 malmignatta kernel: [ 0.000000] Initializing cgroup subsys cpuacct
May 8 17:18:54 malmignatta kernel: [ 0.000000] Linux version 3.11.0-19-generic (buildd@comet) (gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8) ) #33-Ubuntu SMP Tue Mar 11 18:48:34 UTC 2014 (Ubuntu 3.11.0-19.33-generic 3.11.10.5)
May 8 17:18:54 malmignatta kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.11.0-19-generic root=UUID=02da4203-ebce-4ff4-ab30-bf6d860d1262 ro quiet splash vt.handoff=7
May 8 17:18:54 malmignatta kernel: [ 0.000000] KERNEL supported cpus:
May 8 17:18:54 malmignatta kernel: [ 0.000000] Intel GenuineIntel
May 8 17:18:54 malmignatta kernel: [ 0.000000] AMD AuthenticAMD
May 8 17:18:54 malmignatta kernel: [ 0.000000] Centaur CentaurHauls
上述文件中的重启发生在 17:17:00，没有任何迹象表明发生了什么。
答案1
后来发现，是机箱内部的一根电线移动了，导致显卡风扇停止运转！！
现在我希望它没有损坏图形，无论如何奇怪的是在上面日志中没有显卡告诉电脑停止并重新启动的痕迹！