My computer screen goes black

[Ales]

Hi!
I have a problem, when i open any game like counter strike go, assassins creed after some minutes my computer screen goes black, and my computer starts working faster look at this sound: https://vocaroo.com/i/s1UuXZ5z69Sh

Is this because of graphic card or processor? When i am using internet with computer there is no any unexpected black screen, only when i am playing games.
I saw other colour at my comp. display sometimes, it went purple, warm white but a little bit.

 

[johnb35]

Open your case and determine if its the cpu fan going faster or video card fan. Something is definitely getting hot. Check for dust inside the fans and use a can of compressed air to blow it out but keep the can upright or you'll expel the liquid.

 

[Ales]

The graphic card is so hot that i can burn myself, it is 9years old, and it is ATI Radeon HD4670, but when screen turns black my graphic card change temperature to normal,

Picture of graphic card: https://imgur.com/a/tCYMu

 

[johnb35]

You'll need to replace the video card. But again, check for dust inside the fan.

 

[Ales]

There is no any dust in graphic card because i have cleared all of the dust

 

[johnb35]

Then replace video card. What exact model of power supply do you have?