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Follow Procedure to add an application to NVIDIA Optimus Technology’s dedicated video 3D settings. There you'll also see how to enable the Display GPU notification in Notification area option to confirm the eGPU is activated. Ensure you are not using an external LCD attached to your eGPU for this to work.

Thank you again. Everything is working as intended. One last question, how do I know if i'm running x1.1Opt?

That's what these owners with a iGPU + AMD dGPU + NVidia eGPU did to get success: madseason (Lenovo Y460 + HD5650M), Tondy (Vostro 3560 + HD7670M) and Frula (HP 4530s + HD6470M).

Thanks Tech Inferno Fan, disabling my dGPU worked, optimus is functioning correctly, however, I cannot seem to use my intenal LCD display. Where is said option located?

That's what these owners with a iGPU + AMD dGPU + NVidia eGPU did to get success: madseason (Lenovo Y460 + HD5650M), Tondy (Vostro 3560 + HD7670M) and Frula (HP 4530s + HD6470M).

Thank you, I'll buy setup 1.x to disable my dGPU then.

Do I need to disable the dGPU to run optimus? Thanks

....I have a Lenovo y560 with an i5 560m - Intel HD. Also a HD 5730 as a dGPU,

The switchable graphics option enables the dGPU on the pci-e bus and there is no way to otherwise disable it on a Y460/Y560. So how are you switching off the dGPU to not be on the pci-e bus?

In that case I'm not disabling it, it's just not functioning correctly. The thing is I did manage to get everything working everything except optimus...unless I do need to free the pci-e bus to make it work. Thanks for the reply.

Edit: I just noticed that all three cards are working and none have any errors, my internal uses Intel HD and my external my 660 Ti.

How are you manually disabling the dGPU? There is no option in the Y460/Y560 BIOS to do it.

Lenovo tends to disable the needed iGPU if boot with the eGPU powered up. A solution there is to either use the PCI Reset Delay (SW1=3, 6.9s) on a PE4L so can bypass that check with a coldboot OR hotplug the eGPU after bios has booted by halting Win7/8 with F8/12. Load the stock Intel HD driver from Intel's website too. It may also be necessary to disable the dGPU either via a BIOS option (if it exists) or using Setup 1.x. That Setup 1.x page shows how a youtube video of how to configure a eGPU using a Lenovo Y460, which would be similar to your Y560.

Thanks for your reply. I did manage to install the eGPU but it only works using an external display and there's no optimus option. My PE4L is set to SW1=3. The problem is that I don't seem the have an optimus option, is it automatic or do I need to enable it in the BIOS? Also, my intel HD remains active on my main display and I can disable my dgpu manually.

Sorry for that, I have a Lenovo y560 with an i5 560m - Intel HD. Also a HD 5730 as a dGPU,

Hello, i'm trying to enable optimus for my 660 ti. The desktop driver installs successfully but i can't find the option to enable nvidia optimus from the control panel. Is there anything i'm missing here? Thanks

Edit: I'm using the Windows 8.1 beta driver.