Hoang Tan :
MostWantedSoulRider :
I don't think the problem is on the PSU. Yours have a good ampere rating in +12v rail which is necessary for gaming. First, try it out with any other graphics card before buying anything new. If another one works, then buy a new card/exchange the existing one as you've quoted that your pc is pretty much new.
Let's think in another angle now. Consider the other gpu has the same issue like this one. If that's the case, the problem is on the PSU for sure. Then, i would suggest you to buy SEASONIC 550W or 620W
Hey, bro. I had searching the problem on other websites. And they show me a way that I can't imagine:
"change the theme to WINDOWS BASIC" (don't use aero theme)
And yes !!! It worked for some reason
However, thanks for give me some advices.
Oh wow, really? But why's that so?
Try this out right away, bro.
net stop uxsms
net start uxsms
Give these commands in an elevated command prompt (start cmd in administrator mode). It makes DWM to restart and hence it may help you to use AERO THEME without crashing.
If it fails, look at this tutorial and implement it in your PC
http://answers.microsoft.com/en-us/windows/forum/windows_7-desktop/windows-7-aero-is-not-working-after-restart-option/05c9c550-0312-4d95-8bdc-1edbe1fc8460