i will get a black screen after awhile no error or nothing windows still running just fine. I would be watching something on Netflix or just on the browser than the screen would turn black. i pretty sure its a driver issues since i though it was the DP port or cord try different port and dp cord still the same. i did all the steps to do a clean install of the drivers done the sfc /scannow. i evening reinstall windows 10 Pro 64-bit.
Windows 10 64bit
16gbs of ram ddr3
mobo asrock fatality fm2a88x+ Killer
cpu amd a10-7890k
gpu rx480 8gbs PCIE 3.0x16 slot
PSU evga 700w