I have an Asus ROG series motherboard (it's a Maximus IV Extreme) and there's a toggle switch on the board called the "LN2 Mode Switch". I gather this is used to try and remedy cold boot bugs when using liquid nitrogen to cool the CPU. By default the board ships with this turned on.
The manual states: "With LN2 mode activated the ROG motherboard is optimised to remedy the cold boot bug during POST at an extremely low temperature and help the system boot successfully."
So, my query: What actually gets changed by this switch? Power distibution? Bus timings? I assume that since it's on by default it won't hurt to leave it that way but I'd like to know if there's anything to be gained by disabling it because my cooling setup is far more pedestrian than a bucket of LN2.