Problem with steam games- TF2 , Garrys Mod, CSS

[Solka]

Suddenly I realised is not only with tf2 game but with most of games from steam. It doesn't lag and all and FPS are brilliant but during game i have small squares on sides or actually everywhere as if there are special effects. Since they are very small (usually blue/yellow squares) they can be easly ignored. Every two minutes when there're lots of squares computer decides to have a blank screen for 2 secs as if it refreshes the screen, since then 'squares' arrive on my monitor very smoothly and after 5min the game crashes with that information:

buffer crash cmeshdx8 etc.


I changed few options during the game but nothing helped and I get same results.I found few information regarding that and I did the first step with changing ram since I've got 8gb i gave a set on 8192mb


It is impossible that I have weak computer for these type of gaming's, but here is my info regarding my comp with most important parts:
Intel Core i5 4300M, 2.6GHz, dual-core + HT, 3.2GHz + TB
-RAM: 8GB (2x4GB) Corsair Vengeance 1600MHz
-2GB NVIDIA GeForce GTX-765M - DirectX 11 GPU

Laptop is from SCAN company - LG175

Please help me, if you need any more information contact me here or PW, either email or skype

.

Currently I found out that I've received this information on games:
Team Fortress 2
Garrys Mod
Train Simulator 2014

Here is a link to a picture which I explained those 'blue squares'
http://tinypic.com/view.php?pic=5ze3ur&s=5

 

[sixteenth]

What are your temps (CPU/GPU) when running these games?

Also, refer to this article for tips with paged memory issues (what your error code suggests). And update your drivers.

 

[AtomicSpark]

Those are graphical artifacts and usually are related to overheating.

 

[Solka]

This picture was taken week ago by me:
http://tinypic.com/view.php?pic=2n6ujpj&s=5
It shows all the temperatures. However...

I reinstalled all drivers and games, let me try again to see if I have problem. If YES then I will tell my my updated temperature here

 

[Solka]

What are your temps (CPU/GPU) when running these games?

Also, refer to this article for tips with paged memory issues (what your error code suggests). And update your drivers.

I finnally managed to log to this account. Well this is the information I received while i played TF2 http://i40.tinypic.com/2myojh0.gif

I think I will send this laptop to SCAN in order for them to exchange my graphic card since I think it's dead. What do you lot think?

 

[Solka]

Please help me