On my dell XPS 9550 the dedicated GPU burned out due to heat sync issues. The GPU is dead, but the integrated GPU still works, so the laptop generally works. However, after the GPU burned out, the keyboard stopped working after sleep. The keyboard works fine in BIOS and in Windows after restart, but does not come back from S3 sleep and Hibernation. Restarting the laptop fixes the issue. I suspect this is due to conflicts with the dead 960 GPU. I would like to disable the dedicated GPU entirely. There must be a fuse somewhere on the board for the GPU. Can anyone help me find it. Board diagrams would help.