From: https://www.diseasewiki.com
What causes computer overheating?
Heat dissipation has always been a major issue in computers since their inception, and this issue has become increasingly serious with the continuous improvement of computer characteristics. An overseas company once cooked an egg on a laptop, which shows that the heat generation capability of dual-core laptops is indeed substantial. In fact, most of the computer’s failure to work properly in summer is due to high operating temperatures, resulting in poor heat dissipation and excessively high internal temperatures.
The quality of heat dissipation is related to the stability of product operation and the overall lifespan of the device. In summer, computer heat dissipation becomes a major issue, especially for laptops with integrated structures, where heat dissipation also becomes an urgent problem. Gamers can simply expose their arms to air conditioning, but computers cannot run bare. Therefore, excessive heat in laptops is caused by heat dissipation issues.
The heat dissipation system of laptops consists of heat transfer devices and cooling devices, with the basic principle being that heat transfer devices (now generally using heat pipes) concentrate the heat to cooling devices (now generally using heat sinks and cooling fans, with some models using water cooling systems) for dissipation. Less known cooling devices also include the computer keyboard, which dissipates a lot of heat during typing.
Due to limitations such as heat output, power consumption, and volume, the rotational speed, continuous data transfer rate, and random data transfer rate of laptop hard drives are all lower than those of desktop hard drives. Currently, the popular hard drive rotational speed for desktop computers is 7200rPm, but laptop hard drives still dominate with a 5400 RPM speed. Although there have been 7200 RPM laptop hard drives on the market for a while, they have not been widely popularized due to price factors.
Nowadays, laptops have split into different development trends based on their main uses, with netbooks tending towards daily office work and movies, business laptops maintaining stable low energy consumption to achieve longer battery life, home-use laptops having excellent gaming and entertainment features and high cost-performance, and gaming laptops being professional to cater to the needs of a small number of mobile gamers. Flagship-level configurations, with very good gaming and entertainment experiences, naturally come at a high price and have unsatisfactory battery life.