it's normal, trust me, when you are playing games your pc will automatically use your nvidia instead of your intel hd card. the reason why it shows your intel hd is because your pc always uses our intel hd card when you are NOT playing. the reason for this is that the intel hd uses less energy then the nvidia. and you don't need your nvidia for other things than games. your pc keeps using your intel even if you have the launcher open. but when you click play it will detect the game and it will change to your nvidia.
it's just a way to save energy and your gpu
just to make sure: right click your desktop. -> select nvidia-configuration. -> manage 3D settings -> global settings -> nvidia GPU. (this will make it 100% sure it will use your nvidia for all games)
and this sometmes helps for me. click on default on your fallout launcher, it will redetect your gpu and sometimes switches to my nvidia. (nvidia geforce gt 740M)
Edited by jojoprins, 25 August 2014 - 12:46 PM.