This problem just happened frequently those days. When I was during the game, my computer may crash with big annoying noise and unmoved game screen. After a few seconds, the sound backs to normal, but the screen is still unmoved. I can quit to the desktop and everything else works good. However, I cannot close the task "League of Legends.exe" in my Task Manager. I even use cmd taskkill to try to shut it down, but it does not work. This task takes 900+ MB soild-state memory all the time. I cannot to rejoin the game I quit because this, and my computer could not turn off by normal way.
The only way to close this task is that I shut down my computer by pressing the power key. This is the only way I can DO!
So I really really need help with this problem! So could Riot helps me?
I can provide any further information if you want, like the r3dlog or information about my computer that can help you solving this problem!

@Riot no one can help me?!

Hey Whatup Whanext,

What kind of computer you running with over there?

hey someone helps

hey hey hey

Does this happen everytime you play?

This exact same thing is happening to me, I am running with the same computer and graphics card as well, can anyone help?

Are you running a SSD in there?