On 2017-05-02 02:49, H wrote: > I am running the latest updated version of CentOS on a HP DL160 G6 > server as a workstation with the Mate desktop, not Gnome. The only > expansion card I have installed is a MSI Geforce GT710 graphics card > driving two monitors. > > Unfortunately the computer locks up at random intervals: neither the > mouse nor the keyboard work and I lose the SSH connection to the > computer I have used to see if the entire computer locks up or only > the desktop. If I leave the computer in this state it eventually reboots. > > Any suggestions on where to begin researching this? > > Thank you. > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos dmesg CentOS 6: less /var/log/messages CentOS 7: journalctl -xe It looks like a HW error, maybe CPU or RAM, so I would recommend running memtest and some CPU bench tool as well. //Zdenek