Screen goes black when gaming

[AnthonyKry]

Recently, I've built a new budget pc. Here are the specs:
Intel core i5 6400 2.7 ghz
GeForce GTX 1050
ASRock 250M PRO4
80+ BRONZE 500W Power Supply
When I'm on my desktop or youtube everything is fine but when I start playing a video game like CSGO or LoL my screen starts going black then stops then does it again and it's unplayable and I don't know what to do. I can still hear the games sound. Also I don't know if it has something to do but I have a message ""KabyLake PCI Express Root Port #10 - A2B1" Please help me I'm a 15 year old boy that just spent 970 CAD. Thank you.

 

[AnthonyKry]

Hey, so I have the solution. This only goes to people who built their pc. Pretty much, your card doesn't have enough GB to support your game. I tried a new 1050 and it didn't work so I bought a 1050ti with 4gb (2 more than the normal one) and it works! This is probably bad news to you guys. I tried everything btw like installing new drivers. Hope this helps someone and sorry to break the news. Have a good day!