In order to bring the community p to speed and stop a rabbit hole situation, I'm linking the previous thread with more details
here.
I've closed the other thread to keep thought and suggestions on one thread/topic.
That being said, can you please pass on your specs like so:
CPU: i5 - 6600K OC @4.1GHz
MOBO: ASUS MAXIMUS VIII HERO
COOLER: NZXT KRAKEN X52 AIO 240mm
OS:rd: WINDOWS 10 HOME EDITION VERSION 1809
Ram: 16GB G.SKILL RIPJAWS 2933mhz
SSD/HDD: 128gb SAMSUNG EVO / 1tb WD BLUE HARDDRIVE
GPU: GTX 1080 ADVANCED EDITION 8GB DDR5X
PSU: FRACTAL DESIGN 650W GOLD 80+
Chassis: FRACTAL DESIGN R4 WINDOW
OS: WINDOWS 10 VERSION 1809
Have you tried uninstalling and reinstalling your GPU drivers? Make sure your motherboard BIOS is up to date.