Hi everyone,

As the title says, I'm experiencing some problems while playing games on my laptop, and since I'm not very knowledgeable where computers are concerned, I was hoping to get some advice here.

Description of the problem: Mostly the game just freezes, and the only solution is resetting the computer. Occasionally the computer resets itself or shows a blue screen with the message that it is 'dumping memory', or something along those lines.

Frequency of the issue: seems quite random. At times the pc crashes 2 times/night, 3 days in a row, but there are also periods where I'll have no problem for a month straight. It does seem that if a crash happens, more are likely to follow.

The problem occurs with different games (WoW, Skyrim..), so I guess it's probably the graphics card? I've tried updating the drivers, but that didn't fix the issue. 

My computer specs:
Dell XPS L502X
64-bit Operating System
Intel® Core™ i7-2630QM CPU @ 2.0GHz 
2GB NVIDIA® GeForce®  GT 540M Graphics Card
8 GB RAM 

Any advice and suggestions on how to determine/fix the problem would be most appreciated. Thanks in advance for you time! :)
Arno