All Games Keep Crashing

[Yashank]

Hello There,
All my games keep crashing after 10-15 minutes of gameplay. somethings it says game.exe has stopped working and sometimes there is no error message at all and just randomly crashed to the desktop,i'm having this problem from 2-3 days and this occurred suddenly without any reason.
The games that show this error:CSGO,Fortnite(Unreal Engine UE4 Crash),Rocket League
I have tried reinstalling My graphic card drivers and also trying many versions but that still doesn't help
My PC Specs-
Windows 7
Nvidia Geforce GT 730 2gb gddr5
4 GB DDR2 Ram @800 Mhz
Intel Core 2 Quad Q6600 @2.40 Ghz

 

[Lutfij]

What is the make and model of your PSU? Is the card you're on with a passive cooler or with a fan? Try and see if reducing details on the games changes the issue.

 

[Yashank]

What is the make and model of your PSU? Is the card you're on with a passive cooler or with a fan? Try and see if reducing details on the games changes the issue.

i don't know the model of the psu but my graphic card has a fan on it's bottom,i play at the lowest settings but the games still remain to crash