joselino28 :
utroz :
So if it is really that hot it is gonna cause a thermal shutdown (like you seem to be experiencing). So I would download Aidia 64 and run the "System Stability Test" which is listed under "Tools". It should tell you if your cpu is throttling and also it has a tab that will show the clock speeds so you can see if they are dropping really low to help your cpu not overheat. Some games that load the cpu more will cause the shutdown to happen sooner and other ones that use less cpu could run and not shutdown the system.
ok thanks i will try it out later then i make feed back, so how can i prevent the restart while playing HD games?
Well that is hopefully what this test will tell us. If it is throttling and then doing a thermal shutdown because of temps then we need to get the cpu cooler by any number of ways. A new heatsink and thermal paste, possibly by going into the BIOS and having the cpu fan spin faster to keep it cooler (could be a very loud fix), How many case fans do you have?