Underclocking the entire pc.
Uninstalling and reinstalling latest and old drivers. Tried out 3 different driver versions.(Current version is 381.89)
Checked for overheating after an hour of gaming and getting 70C on GPU and 62C on CPU.
Took out and RAM, GPU and reseated it countless time. Made sure all fans are spinning in pc. Made sure all connectors are connected right.
PC is clean and lacks any dust.
CPU Thermal paste is replaced not too long ago with the right paste.
Plugging in and out the HDMI cable.