When I start watching Netflix or HBO, my pc randomly turns black for some seconds, then normal, and then black after some minutes. If I keep watching, these blackscreens occur more often, and it is really annoying. When watching YouTube, it is perfectly fine. These blackscreens started appearing when I upgraded my gpu from GTX 970 to RTX 2070, my specs are:
GPU: MSI GeForce RTX 2070 ARMOR
CPU: Intel Core i5-6600K
MB: Gigabyte GA-Z170-Gaming K3
PSU: Corsair CX750M
RAM: HyperX Fury DDR4 2133MHz 16GB
GPU: MSI GeForce RTX 2070 ARMOR
CPU: Intel Core i5-6600K
MB: Gigabyte GA-Z170-Gaming K3
PSU: Corsair CX750M
RAM: HyperX Fury DDR4 2133MHz 16GB