What's happening when it shuts down in the way of programs / system load? By removed the GPU, do you mean it is still out and still shutting down on its own?
What's happening when it shuts down in the way of programs / system load? By removed the GPU, do you mean it is still out and still shutting down on its own?
When the GPU is in or out it will still shut down on its own. Shuts down on idle or when playing a game.
Have you configured any power options in the bios? Disabled c-states? What are the windows power profiles set to? Are there ever any crash reports upon booting up again?