CPU fan runs at full speed all the time

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A CPU fan is more than just a fan. It is attached to CPU not merely with power pins/wires but as well a sensor that tells information technology how fast to run. If the CPU is heating, the sensor will make the fan run faster. Equally such, CPU fan runs faster when you are gaming on the computer, just to proceed the processor absurd. There may exist other fans in your computer, based on its type and model. For example, if you utilise an old desktop, your SMPS also has a fan. In this commodity, nosotros'll limit ourselves to the fan fastened to the processor which is used to keep the processor cool. Since many people call it CPU, nosotros will phone call it CPU fan. Let'south cheque out the main reasons why a CPU fan runs at full speed all the time and how to fix it.

CPU Fan runs at full speed always

We've already talked almost the first reason. A CPU fan runs at full speed whenever the temperature of CPU increases. The processor generally uses a sensor that controls the fan speed. If the CPU fan runs at full speed all the time, in that location might be something wrong either with the processor or the sensor (in the fan). Information technology tin can also be an issue of the rut sink on the processor.

Sensor Problem causes CPU Fan to run full speed always

The about common crusade why a CPU fan would run at full speed is that its sensor is not working properly. The solution hither is to supplant the fan itself. Simply you need to see that the processor is not always hot. You lot tin can utilise third-political party applications for this purpose. I would propose a hardware monitor from CPUID or XMeters. It will tell yous the processor temperature and thus help you lot decide if the fan is running without a sensor or with one. If you don't detect any changes in the processor temperature for long, there is something wrong with the fan sensors. In such a instance, replacing the fan would help.

Read: How to check your PC'southward total ability consumption.

Sure Apps can increase the CPU temperature

The processor can heat up due to certain applications as well. While gaming and streaming videos can heat it a scrap, if it is e'er running at full speed, at that place is a possibility that in that location are sure apps on your figurer that are putting too much force per unit area on CPU.

To check this, open the Task Manager. Become to the beginning tab and click on CPU column heading (it says CPU). That volition cause the Task Manager to arrange programs and apps in descending gild of CPU usage. It means, the apps using the CPU more will be at the summit and the ones using it less will be below them.

Lookout man it for a menstruum. Information technology will requite yous an idea of apps/programs that might exist using up CPU causing the CPU fan to run at full speed all the time, always. Based on that, you may effort removing the elevation CPU consuming apps from the computer then bank check again if it helps. If the CPU fan is running at full speed still, check out the heat sink of the processor.

Changing the Heat Sink of processor

If y'all detect that the fan sensor is working and there are no apps using up significant CPU resource for long periods, you may want to replace the oestrus sink of the processor. Heat sinks absorb extra heat from the processors. They tin be replaced easily if you have been playing with the hardware of your computer. For others, the all-time mode is to get a technician to practice it every bit doing it on own may damage the fan. Make certain the computer is turned off before y'all remove and re-attach the CPU fan.

The heat sink is a coarse alloy (generally Aluminium) attached to the processor with the assistance of a white substance. If the substance dries up, it too may cause sink to part properly so y'all would want to take a look there (if you can open the computer) before changing the oestrus sink.

General tips to avoid computer fan running high speed all the fourth dimension

Proceed the computer clean. You tin buy compressed air and employ it on the computer motherboard from time to time. Remove, clean, and set up back Random Access Memory sticks (RAM). Always make clean the inside of your computer after removing its power sources. That includes batteries if you are using a mobile device. More tips hither on how to physically make clean up your Windows reckoner, mouse & keyboard.

Permit united states of america know if you have any other ideas!

Read next: How to fix Overheating and Noisy Laptop Fan bug.

Arun Kumar is a Microsoft MVP alumnus, obsessed with technology, especially the Internet. He deals with the multimedia content needs of training and corporate houses. Follow him on Twitter @PowercutIN