Question Game freezes and sometimes it crashes

[BOBBYJASHON]

So when i try to play any game like ROBLOX It crashes and im not sure but i think its gpu fault because in the video i played on an empty game and it worked pretty well ,but after i got into a game with alot of things in it ,it was laggy and then it froze I dont know what i can do please help me here is a video of it happening and my specs and also sometimes the game runs for a while and sometimes things arent loading in game and the gpu starts making loud noise
GPU: Geforce 730 gt 2gb
8 gb ram
Psu Myria 3001
Motherboard h81m-k
I3 4170 3.7Ghz
Windows 10 pro 64 bits
1tb Wb blue ssd
https://streamable.com/dguca4

 

[BOBBYJASHON]

Also i forgot to mention that sometimes it just gives a blue and colored screen when i raise the graphics for a sec and freezes,but i dont know which components fault is or what is the problem

 

[BOBBYJASHON]

Hello, this thing started to happened after I took the GPU Out so I can clean it off dust
so when I go into a game ex ROBLOX and i go into a game like a baseplate with nothing it runs smooth, but whenever I go into a game with a lot of details I got even get to play it because it freezes and crashes and once it froze and a blue thick line showed for a sec and then it closed. Sometimes when games with a lot of details work things don't load like objects , Also I've tried it in euro truck simulator 2 and it ran for 6 minutes on lowest graphics ,also it crashed and the game closed.I really don't want to get a new pc I just want to fix this problem here is a video and my pc specs
GPU GEFORCE 730 GT 2GB
8 GB RAM
1 TB STORAGE WB BLUE
H81M-K MOTHERBOARD
POWERSUPPLY MYRIA MODEL 3001
I3 4170
WINDOWS 10 Fresh installed
https://streamable.com/56o5p8