Dell Vostro 3700 Switch-Offs.

I am not very well up on the technical side of things so hopefully someone can help.

I am currently having issues with my laptop when playing games. The issus is mainly that the laptop is shutting down after around 10 minutes of play. The laptop does appear to be hot after it has shut down and I have been given information that points to this being to issue. A friend has informed me that the Dell Vostro 3700 had a design problem with it's cooling system. It has a heatpipe system to transport heat but the heat from the VGA card is transported through the CPU area, heating it up as well. This usually ends with a CPU in throttling mode due to heat and may lead to something like switch-offs. I am unsure as to whether any of this is true and have been pointed to the Dell support website in order to get more info and help to fix the problem therefore I am hoping somebody on this website can help.

I have looked into the games spec and have had it confirmed that the games in question should be able to be played on this laptop and that laptop can handle the games.

Dell Vostro 3700
17.3 High Definition (1600x900)
Windows 7 Professional
Hard Drive: 320GB (7,200Rpm)
Memory: 3072MB 1333MHz DDR3
Processor: i5-450M 2.4GHz
Nvidia GeForce GT 330M, 1GB Graphics

I look forward to hear from anyone with any help on this.

Thanks in advance

LD