Is RAM cleared after a warm reboot?

[Rodion15]

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.

 

[jsmithepa]

Lieutenant, just like a HD, the OS doesn't bother to clear ram data, it merely says, THIS BLOCK OF RAM IS NOW FREE for anybody to use. That's the job of the memory allocation manager. When any kind of booting occurs, the memory manager starts with a clean Memory Allocation Table.