computer screen goes off after playing some games

superman2014

Honorable
Jan 13, 2014
2
0
10,510
Hello everybody! My laptop's screen goes black while playing games or running 2 intel xtreme tuning stress tests aftet another for 5 mins. So I didn't have this problem for a year or so. I played games FIFA13, MW3, Assassins Creed 2 and 3 with no problem. Then I upgraded comp's RAM from 4GB to 6GB (I added 2GB more). And after that I noticed this problem. And ipdated my BIOS it was fine for a week and now Im experiencing the same problem. Help!
 

superman2014

Honorable
Jan 13, 2014
2
0
10,510
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I tried that. I can hear fan's spinning sound. And I enabled "Fan always on" from BIOS