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Dell 7720 17R disable optimus / unlock bios

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I have discovered some users being able to get into non- displayed bios settings on 7720 with 3610 processors, but haven't seen any success with 3630qm.

I am looking for solution to somehow disable optimums functionality in my laptop. Is it big nonsense i am talking about?

To have basically my system functioning fully on nvidia 650m and to be able to use nvidia interloop function for sharing video texture in between applications. I can do it correctly now, but only if using intel4000 chip which totally sux with its "32mb" vram. I feel like it may solve the problem.

Or at least please explain me why it is not possible, or why is it nonsense question if it is

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