GT70 2PC: 870M does not activate, benchmarks and performance ingame confirm this

Question

I bought myself a GT70 2PC Dominator (the SSD version) with an 870M inside, and after starting several games, checking benchmarks and comparing framerates to my current desktop machine (which has an i5 2500K and a GTX 770), I find that, even after configuring the machine to prefer the "powerful Nvidia processor", and setting all games to use the Nvidia processor, it still uses the 4600 processor. I'm getting rather low framerates, I'm not hearing any fan speed increase, Benchmarks ingame like the one from Sleeping Dogs still report the 4600 GPU and some games won't even boot up properly (like Just Cause 2). I did configure all the games to use the Nvidia GPU in my Nvidia Control panel, I updated my drivers, Device manager is finding both cards.
Is there a way to tell my laptop "Look, I don't care about saving my battery, I don't care about noise, I don't care about heat (as long as it does not damage anything), just ALWAYS use the Nvidia GPU, even when it's not needed, so I can actually have some enjoyment out of the 1600 EUR I spent on this machine"?

Answer 1

Check your power button light and see if it lights red(red=dgpu, white=igpu) and make sure you've attached battery with AC plugged while playing games.
Fan speed is changing by different cpu/gpu temperature, so check the temperature and the fan speed in Dragon Gaming Center and compare the temperature and the fan speed under different situation.
Can you tell the graphics driver version you're using? (both Intel and NVIDIA one)
Sadly for the Optimus structure, you can't disable the single graphics but you should be able to use the dGPU to run the game. Except the settings in NVIDIA Control Panel, you can also try to right click on the shortcut of the game and choose "run with graphics processor"> "High-performance NVIDIA processor"