How to use card NVIDIA on the Satellite P875-321?

Hello

I have a Satellite P875-321 with operating system factory upgraded to Windows 8.1, all the latest drivers installed.
Whatever I do, it seems built in graphics card is used only (Intel HD 4000) and the Nvidia GT640M is never used.

I check this:
1. with the NVIDIA Control Panel (PhysX configuration shows that all screens are connected to the Intel HD 4000
2. in resolution 8.1 windows settings / special settings lead me to the Intel HD 4000 properties, which indicates that this card is active

What I tried:
1 leaving everything default and use the external power supply (hoping that the computer automatically switch to NVIDIA when the external power
2. use control panel NVIDIA and NVIDIA 3D as favorite graphics card settings

How can I force my laptop to use a NVIDIA graphics card?

Thank you
Janos

Hello

The Intel graphics chip, which is part of the central unit should be used for low performance applications, because it allows you to save energy and reduce the internal temperature.

But to get best performance all in game, it s advisable to use the external GPU (nVidia or AMD)
This setting can be changed in the nVidia control panel s

Here, you should choose manage them 3D settings (can be found on the left in the nVidia control panel)

Now in the main window, you will find two global settings and program parameters tabs
In the program settings tab, select the (game) program that needs to use the nVIdia GPU

If it is not listed, click the Add button
Then choose the graphic processor preferred for this program (generally must be nVidia processor high performance)

Last but no less, in this program-specific settings, you can assign additional features to improve performance.

Tags: Toshiba

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