Hi, I am getting random pc crashes while playing some pc games. I can ussually play around 0.5 - 1 hour till it crashes. When it crashes, computer will freeze and I see only black screen. Reset button on computer will not work, so I have to hold power button to turn it off and then on again. It happenes only in games with higher system requirements (happened in Dota2, Portal2, new Simcity). It doesn't crash in Company of Heroes or Fallout New Vegas (played 50 hours without crash).
I also sometime gets slight screen flickering when watching flash video on fullscreen (youtube or twitch.tv) and rarely, when I open a video file, my screen freeze (something like this: https://farm4.static.flickr.com/3405/...97f01ebf_o.jpg
). However, after pressing ALT+F4 a couple of times, it returnes to normal.
-running memtest a couple of times with no errors
-removing 1 memmory card to see if the other is faulty and then swapping them
-reinstalling windows (upgrade, not clean installation)
-the temperatures are ok (60°C on CPU, 65°C on GPU while playing some game)
-HW Monitor showed low voltage for +12V (only +4V), but I checked in BIOS and it showed 12.4V
-also tried this: Crash Reports - Read - Windows 7 Help Forums
but it never created any crash report
· OS - Windows 7 Proffesional SP1
· This was original OS installed on my system
· It's a version I got for free from university (Microsoft DreamSpark)
· 8 month
· 8 month, tried to reinstall (upgrade) last week, but it didn't help
· Intel Core i5-3570K
· Gigabyte Radeon 7850
· GIGABYTE Z77-D3H
· Seasonic SS-500ET-F3 500W
Thank you for any help.