Laptop crashes while playing games?

Hi there,

Lately, I have this problem with my laptop. When I play games, my laptop crashes. This happens random.. Sometimes, the game crashes when I'm playing for 10 seconds, the other time it crashes after playing 5-10 minutes. I already have this problem for a while, and I've tried to fix this problem by searching on forums etc. None of the things I did helped.

I tried:

• Delete my Graphic card drivers, and reinstall the newest.
• Installing an old driver.
• Playing without my battery in it.
• Adjust game options

None of those worked so.
When I crash, the only thing I can do is to manually turn off the computer. Sometimes, the game just stop, and I get a pop up, saying:

"video driver stopped working and has recovered.  Video driver Intel Graphic Accelerator Drivers for Windows 7(R)  stopped and has been recovered"

I feared that my GPU was broken, but I've runned several test (with Dell DIagnostics), and all of them passed.
 So I don't really get what the problem of my laptop could be. I hope that I maybe can get some help by posting my own thread. Thanks in advance!

Regards, Ruben

Specs laptop:

Dell XPS 15 (L502X)
Intel(R) Core(TM) i5-2450M CPU @ 2.50GHz    

6.1 GB RAM Memory

GPU: NVIDIA GTX 260/AMD Radeon HD 4890

OS: Microsoft Windows 7 Ultimate Edition Service Pack 1 (build 7601), 64-bit