Just a thought, can you get into bios and hit F5 to default everything, also check your thermal paste on cpu and gpu. I found some info which ill paste below but you probably have already trolled most pages. Failing that un-plug everything and clean out the case, put it all back together and see how it goes. Last resort would be fresh install of OS.... and bios update if there is one. My old Formula 4 bios only went to 2014.
Id almost recommend updating to WIN 10 as a side note, fixed a few of my issues before i upgraded to z390. Just my two cents.
When a device is plugged into a Windows-based system, the following warning event Kernel-PnP ID 219 is logged together with the event DriverFrameworks-Usermode ID 10114 in the System log:
(Logged events)
Warning xxxx/xx/xx xx:xx:xx Kernel-PnP 219 (212)
The driver \Driver\WudfRd failed to load for the device xxxx.
Information xxxx/xx/xx xx:xx:xx: DriverFrameworks-UserMode 10114 Start UMDF reflector
WUDFPf (part of UMDF) did not load yet. After it does, Windows will start the device again.
Cause
When a UMDF device was connected, UMDF driver for that device will be loaded. The Windows Driver Foundation - User-mode Driver Framework service, which is necessary for loading UMDF driver, will be started triggered by loading the driver.
However, for some cases, when the system tries to load the driver, Windows Driver Foundation - User-mode Driver Framework has not started yet. So the two events above are logged.
Resolution
The driver that Windows tries to load will be retried. So, the events are safe to ignore unless the same events are logged continuously, and no need to do something.
You can confirm the driver is loaded successfully in the System Information, and you can confirm the devices are running correctly in the Device Manager.