F29 fails on new ThinkPad P72

I just bought a ThinkPad P72 "mobile workstation". To see if Fedora 29
would work, I made a bootable thumb drive with the 64-bit F29-MATE spin.
It passed the self-test, but the boot stops before going into graphical
mode.

This is a new and just-released system, so it couldn't be tested before
F29 was released. Some tech details:

CPUs    Two E-2186M Xeon 6-core 2.9-4.6GHz w/12MB cache
RAM     64GB DDR4 2400MHz ECC
SSD     Two 2TB PCIe-NVMe OPAL2.0 M.2 in RAID1 (Intel on-board controller)
Video   nVidia Quaddro P5200
Display 17.3" 4K (3840x2160)

Are any of these known to cause problems with F29?

Robert G. (Doc) Savage
Fairview Heights, IL

"Perfection is the enemy of good enough."
          -- Admiral of the Fleet Sergei G. Gorshkov