A warm reboot restarts a computer without loss of power to the motherboard. If it's a forced reboot (not sure this is the right way to call it), that is: a reboot produced by a kernel panic, BSOD or by pressing the reset button, what happens to memory?. During a warm reboot (for example the reboot produced by a BSD, kernel panic or pressing the reset button): is the RAM emptied then refilled again?. I say because, since the motherboard isn't powered off in any moment, does the RAM keep data?. I heard that sometimes it's necessary to actually do a cold reboot to clear memory after a warm boot.