Welcome to the forums!
It's been a while since I've dealt with the ol' G50V, but I'm not showing it has integrated graphics and guessing you are just running the GPU in a 'crippled' state so that it doesn't exhibit the problems you were seeing before?
If you're interested, you can find
more details about the Mobile Intel PM45 chipset used by the G50V at Intel's website which states it does not have integrated graphics.
I don't believe your processor (or any of Intel's current processors?) has integrated graphics included as part of the processor.
I'm curious about the problem with your GPU, how you checked it, and if you see more than 1 display adapter in your device manager, but we can check into this later if necessary.
Also, I show the G50V has a separate vga card although I'm not sure that you would want to spend the money to replace it anyway.
Well, hope this helps give you a better idea of the situation.