How to disable discrete graphics card on Asus k750jb laptop?

Question

Iron

It all started with the failure of the video card with code 43, they did a reball in the service center, it lived for about six months, now it fell off again, it makes no sense to repeat the procedure, it takes a long time to wait for a new video chip, the processor on the laptop is i7 with an HD 4600 video core, which, in principle, should be enough (I don’t play games).
How to turn off a discrete video card so that it does not consume power and does not heat up (now it is decently warming up like that). There is no such thing in the BIOS, a simple shutdown in the device manager does not help from heating. I ask for help in this matter.

Answer 1

Nothing. Just replacing the chip with a new one.

Answer 2

in task manager or device manager? devices can be disabled.
In extreme cases, you can simply disassemble and turn off so that it does not directly consume.