Scientists have thought that magmas that form new crust at fast-spreading ridges rise up from the depths, quickly crystallize, and then push away from the ridge to form new ocean floor.
To stop a computer from overheating never keep a cloth or something else on the CPU or monitor. Also use the save energy option from properties so as to switch off the monitor when not in use. This will always help in keeping the computer cool and not overheating it.
Overclocking, especially, generates excessive heat; essentially, this is operating your CPU at a higher clock speed than intended by its manufacturers. The big benefit is a more efficient and faster operating speed, but it also requires a higher voltage to perform tasks.