So i have a computer with i5 processor, 8gb ram and the gtx970.
But when i trying to render a scene, (just a small room at medium lighting quality), i go check task manager, the cpu usage is 80% and the memory 7.91gb. Then my computer stop working and i have to restart with the button. This is really annoying, why this engine using so much memory? That was just a small scene with medium quality?
Hello dangngo,
Would you mind providing me with your ‘dxdiag’ as well as a screenshot of the small scene you are attempting to build and the engine version your are using?
Thank you,
thx u for the reply but actually i solved the problem :D. Its the paging file that cause the problem @@. I change it a little bit and everything work fine. 
I found the answer for my problem! I have tried to update my graphics drivers a while ago but I just randomly quit it while it was installing. Now I downloaded the latest graphics drivers and everything works fine!