Why do cpus get hot

A heat sink is a piece of metal provides surface area for air. CPU makes heat sinks hotter, then the fan will send the hot air out of the PC case. To fix the air-flow cooling system you need to check these two parts. If the performance of the CPU heat sink is low, its heat cannot be sent away in time. Then you need to replace it with a better sink.

This problem is common with the notebook. If your notebook air ducts are not good which is always not really well on the notebook, it is recommended to add a cooling base to assist. The old thermal paste is no longer effective is one of the reasons for the CPU overheating.

Therefore, you should replace the thermal paste either by yourself or go to a computer store. Of course, this way will make the component generate more heat. Now that you know the reason and solution of the CPU overheating, the following is the prevention method for the cause. Setting a reasonable power management method is a good way to prevent your PC from overheating.

By setting the time to turn off the display, hard disk and the system waits can save both power and heat. Leave enough space can let the hot air get out from your computer more easily.

Also, lift your notebook can let the fresh air get in more easily. Dust can seriously affect heat dissipation, especially the dust on the fan. It is recommended to clean it frequently. You can remove the fan to clean it. To further promote better airflow, case manufacturers are starting to building bracket mounts for wires inside of a computer. This would allow mounting wires behind a motherboard, rather then leaving them dangling in the front. Believe it or not, but a wall of wires can pose as another huge problem in heat dissipation!

A CPU can also heat up quickly by pushing it beyond its factory specifications. While true you can use a liquid based system to combat the extra heat generated by overclocking like what you find in cars , you theoretically can keep your computer in an overclocked state as long as the components on the CPU never reach a critical temperature.

As computers get more and more advanced, we will eventually have to rethink how we approach this topic as a whole. Extra Heat Can also be a problem if left unchecked. For a desktop computer, the heat-generating components are contained in a large chassis that is placed away from you perhaps under or beside your desk and a fan blows the heat out the vents on the back so you may not be aware of the heat generated.

But for a notebook, you will likely notice the heat because you are physically closer to all the heat-generating components and vents. This heat dispersal is not haphazard. All HP products are designed to maximize your safety and comfort when used in normal operating environments. HP has fully tested the surface temperature of its notebooks, and they are below the industry specification for surface temperature limits defined by the International Standard for Safety of Information Technology Equipment, which is also known as IEC Information about IEC is available at www.

The heat transferred to the chassis of the notebook, while noticeable, is not a safety issue. HP takes all potential safety matters and concerns seriously and maintains a dedicated team to promptly address them if they occur. Material - The material used for the computer's chassis plays a significant role in heat dispersal and allows heat to pass through it. Lower performance computers that generate less heat may use materials that are less permeable to heat, such as certain types of plastic.

When working on such a computer, you may not notice the heat output. Higher performance computers, on the other hand, may use materials that are highly permeable to heat, such as certain polymers or metals. These materials are used to help in dispersing the heat generated. When performing processor-intensive tasks on such a computer, you may notice the heat output.

Design - The size and shape of a computer's chassis, not just the type of material used, also affect how heat is dispersed. There is a minimum amount of free space inside the notebook chassis. Fans are required to draw the cooling air across the heat generating components and through carefully designed channels.

As computers become increasingly thinner and smaller, more subtle chassis designs to used manage air flow and heat dispersal. Generally speaking, a higher performance computer will need more space for heat dispersal in comparison to a lower performance model. A high performance computer that is too small cannot effectively disperse the heat it generates or have sufficient space to place the required heat sinks and fans. Fans - The fans draw in cool air from outside the chassis and blow it over the heat producing components inside.

The more heat the computer generates, the more rapidly the fans must spin to move the required amount air to help disperse the heat. Customers sometimes comment that they can hear the fan more on a high performance notebook than they would on other notebook models. Vents - The flow of air into and out of a computer is critical to dispersing heat from the various hardware components.

The strategic placement of vents in the chassis can maximize the free flow of cooling air through the device. A higher performance computer may have more vents than its lower performance counterpart. What activities generate the heat? However, the type of activity being performed affects the amount of heat generated or dispersed at any given moment.

Heat in the computer can be affected by the physical environment in which the computer is located, and even by local weather conditions such as high humidity. How can you manage the heat in a computer? Your computer's basic heat profile is determined by its hardware specifications and how you use the computer.

If you find the heat output of your computer unpleasant, there are a few things you can to do to try reduce the heat slightly. Unblock the vents - Inadvertently blocking the air vents by pressing them up against a cubicle wall or placing the notebook in an enclosed space, can cause a computer to heat up to higher temperatures as there is no outlet for the hot air building up inside.

If you unblock the vents, the computer's temperature might decrease. Place the computer on an appropriate surface - Do not place the notebook on a soft surface such as a cushion, or on your unprotected lap. Soft materials and clothing can unintentionally block the vents or prevent the computer chassis from dispersing heat as it was intended.

Always place the notebook on a hard surface, such as a desk or a lap tray that allows an air flow around the computer. Change your computing environment - If you are using the computer in a hot, humid environment, move it to a cooler, drier one.

For example, using the computer in a room that has no air conditioner in a tropical or sub-tropical location can cause it to generate additional heat.