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.
Changing the clock speed and/or voltage settings will make the PC work harder/faster/stronger, though at the increased risk of things going wrong or even burning out physically. Veteran overclockers will tell you to eschew software and limit your overclocking attention to the BIOS or UEFI on the motherboard.