Sometimes NVidia drivers for Dell OEM GPUs have to be tweaked because they're not identical to a "retail" card. So you might want to uninstall the NVidia drivers and install the one from Dell's site. The other thing that might help is to change the active Power plan's setting for PCI Express Link State Management:Open the Windows Power & Sleep screen. Click Additional Power Settings. On next screen identify the active Power plan and click Change Plan Settings. On next screen, click Change Advanced Power Settings. On that last screen, disable PCI Express Link State Management. Save the change to the Power plan and reboot. See if that helps...
Greetings, The XPS 8930 was purchased January 2018 and kept updated with Microsoft and Dell Updates since then. Once in a while I had to correct a Microsoft Nvidia update which was less recent than the one available from Nvidia website, but his caused no major issues. Since begin of May this year I experienced 4 Windows Hardware errors ( code 141 ) which related to code 1041 in Windows event viewer ( Display driver nvlddmkm stopped responding and has successfully recovered ). I am running a dual monitor setup, the main monitor is the one that shows the Dell Bios startup, the secondary monitor remains blank until windows logon is completed. The windows hardware error 141 causes the 2 monitors to go dark, and only the main monitor is recovered. Applying the "WIndows - Shift - Control -B" to restart the graphics driver has no effect. Unplugging the secondary monitor does bring it up  again Since a few weeks I noticed that the system was more noisy than usual related to the fact that het Nvidia GTX 1070 was running hotter than before ( now 52 °c in idle PC mode ) At startup the Nvidia card is also running at a core voltage of 1.050 V, which gets down to the normal idle voltage of 0.650 V after putting the system to sleep once. This is reproductible behavior, the Windows hardware error happens at random, but now twice in 4 days. I do have maintenance extension on this system with Dell, but do wonder if those fuzzy symptoms would qualify for a graphics adapter replacement. Anyone else encountered this kind of behavior ( no overclocking involved ) Francis  
XPS 8930 Nvidia GTX 1070