I recently purchased a Xeon E3-1230v5 with an NVIDIA GT710 graphics card as a server and had permanent kernel panics. After some research i found a bug statement https://bugs.centos.org/view.php?id=11488
The reason for the kernel panics seems to be NVIDIAs nouveau driver.
The mentioned fixed seemd to work and i have now a stable server. It's quite simple:
Edit /etc/sysconfig/grub and add "rd.driver.blacklist=nouveau nomodeset" to GRUB_CMDLINE_LINUX. Then create /etc/modprobe.d/blacklist.conf and add "blacklist nouveau" to that file.
Now, update grub with "grub2-mkconfig -o /boot/grub2/grub.cfg" and reboot.
After that, the system was rock-solid.