ASUS N752VX power signal missing ?

[jasko_jacker]

Asus N752VX
The notebook, after I replaced the pch, and seems to start up correctly but I have a doubt, staying on the bios screen I checked some voltages and the VccGT power signal (Processor Graphics)
it is at 0 volts, I suppose it is the power supply of the video card integrated in the CPU chip. In the power sequence I see this signal as the last step and it should be enabled.
What I did not understand?

[piernov]

Re: ASUS N752VX power signal missing ?

iGPU power rail may not be enabled when iGPU is idling or when dGPU is being used instead.

[jasko_jacker]

Re: ASUS N752VX power signal missing ?

iGPU power rail may not be enabled when iGPU is idling or when dGPU is being used instead.

So dGPU is used by default and iGPU with operating system, but usually those repairs guide are amde by manufacture ?