New nVidia drivers version nvidia-current-396.45 and nvidia-long-lived-390.77 available here. Both should work with kernel 4.16.13 and 4.17.x. Please test and report any issues here. Also please report if they work. That is important for us to know also.
If you want to enable the repository do this:
# urpmi.addmedia Non-Free-Testing http://ftp-stud.hs-esslingen.de/pub/Mirrors/openmandriva/3.0/repository/x86_64/non-free/testing/
Of course you can replace that URL with one for your preferred mirror. I would suggest that you disable the non-free-testing repo after installing the drivers you wish to test.
Also all users be sure that the driver you install supports your hardware. nVidia nvidia-current-396.xx and nvidia-long-lived-390.xx drivers do not have the same “Supported Products” list. So please do check the links provided and be sure driver supports your nVidia product.
Thanks to @Colin for providing these new packages.