I have a AMD Ryzen 1800x build and having issues with the motherboard shutting down and/or restarting. When I go to execute a shutdown or restart from the OS, it takes a long while for the motherboard to completely power down after the OS finishes shutting down. My video card stops outputting video and I verified its fan turns off, usb devices turns off, but the system fans stay spinning. It just stays that way for anywhere between a few minutes to upwards to an hour. If I do a restart, ill end up holding the power button until it hard shuts down and then power it back on. The build is as follows: AMD Ryzen 1800X Asus Prime X370-PRO Nvidia GTX 970 Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 2666MHz Windows 10 Pro (latest build with latest patches) I have the latest BIOS flashed and the latest drivers installed on the Asus website. I verified the memory I do have is on the compatibility list for the motherboard. I opened a case with Asus and sent in the board...only to get it sent back with a note that said the engineers determined nothing was wrong with it. I am kind of at a lost on this. Any insight and ideas at this point would be great.