Building the game crashes my PC

Hello, so I recently got unreal engine 4 to make my own house in it. I decided to download Xoio Berlin Flat example project so I can see how to do it and use some furniture and other models (this is a school project). When I open the map for the example project and try to build the lighting it says Building Lighting 0% and my PC completely melts down to the point I cant even see my mouse moving, and so I have to manually turn off my PC by holding power button. My PC is very new, it has a I7-4790k, GTX 750ti Superclocked, and 8gb ram. I am also running the newest Graphics drivers.

It is good to note that I have tried building lighting in some Unreal template projects and this works.

Do you have any sort of overclocking on your CPU?

No my CPU is not overclocked.

Have you stress tested your CPU using any other programs like prime95? If it’s a new computer it could be a problem with your hardware. Also try doing a memcheck using the Ultimate Boot CD. You might of done some of this stuff already but if you’ve built your own computer it’s important to stress test all the components.

My PC is around 3 months old, I just meant the hardware isn’t old.

Everything is working properly for sure.

I had a same problem too. My PC’s CPU is exactly is the same(i7-4970) but i have not dedicated graphic card. My onboard graphic card is Intel HD graphics 4600. After tracking the UE4Editor.exe with visual studio, i have found the exception raised by graphics(igdusc64.dll):

“Exception thrown at
0x00007FFFC00C6BE2 (igdusc64.dll) in
UE4Editor.exe: 0xC0000005: Access
violation reading location
0xFFFFFFFF00000038.”

After update my graphics device driver from from 10.18.10.3412(1/29/2014) to 10.18.14.4332 (12/11/2015) the problem solved successfully. And now i can build the game without any crashes.

You may have two solution:

  1. Update your graphics device driver(both of them).
  2. Or run your UE4Editor.exe under graphics performance mode. For this purpose you can right click on UE4Editor.exe file and select graphics run on your nVidia graphics instead of intel one. This method may not work on your PC.