I've bought a new ASUS R9 390x Strix but i can't install Windows 10 driver.
I've did 20+ fresh install of windows.
Hardware Config is:
MSI z170a Gaming M7
DDR4 Corsair Red Led 3600
SSD m2.Samsung Pro 256GB
Seasonic Platinum 1000W
If i install Nvidia Video Card (gtx 980ti and Titan X) the system work perfectly.
When i can install ASUS R9 390x on fresh install of Windows while installing AMD Driver (from Crimson 16.3.2 to 16.8.2) system Freeze and i must force shutdown a re-start with a new windos 10 installation...
Try the GPU on a friends machine to see if it works there or not. If it doesn't then the GPU is faulty and must be replaced with the retailer.