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.
Update: By the way, my CPU is dual core by Intel. E6240 or 6420 (I forgot the exact model name). It is not overclocked. Is there anything I can do to make it run at a lower temperature besides changing the fan (I have the stock fan that came with CPU).Update 2: Ahh..=========== Check everything with your fan be right, CPU temperature depends on many factors such as your room's temperature, CPU tasks, case position, fan power, case physical style and etc... . so check everything and if nothing happened, take your computer to a local costumer service.