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The fan on my computer is overheating causing the system to close down, please advise as to why this is happening & how I may resolve the problem. Yours sincerely, William Hall.

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Hey mars bar,

One of the most common reasons why a CPU or case fan will malfunction is due to built-up dust and debris. If a fan gets clogged with dust, not only can it stop spinning entirely but it can also cause internal components to overheat due to lack of proper ventilation.

Generally the simplest way to resolve this type of issue is to open your computer case and clean the interior using a compressed air disposable duster. It is important to remember though that such dusters are not designed to be used for prolonged periods and instead are meant to be used in short, sporadic bursts. Additionally, you will want to make sure that the can is held at least six to eight inches away from the surface being cleaned, as compressed air can not only leave liquid residues behind but also may freeze surfaces if they are held too close.

In the event that cleaning doesn't resolve the issue, there is a possibility that one or more internal components may be in need of service/replacement.

If you are unsure how to proceed, I would strongly suggest speaking with your local computer repair technician or a Geek Squad® agent at your local Best Buy™ store for more information.

Hope this helps you out.

Sincerely,
Aaron
Go Ahead. Use Us.

Posted on Jun 05, 2008

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First try to clean all air vents with canned air, if still overheating clean interior, redo heatsinks, check secondary fans.

As you look into the vents, you may see dust build-up on foil radiators or heatsinks, not to mention on the fan assembly if it is visible. Depending the the size of the vents, you may be able to loosen up and capture some of the dust with Q-tips (cotton swabs) and **** it out with an electronics vacuum, but most technicians head straight for the compressed air. I'm not a huge fan of using compressed air to clean laptops without taking them apart, because while you'll definitely blow the dust off whatever you aim at, you'll often be blowing it somewhere else in the notebook. The immediate result will be a cooler running notebook because dust and lint build-up on heatsinks can act as a blanket, keeping the heat from being radiated and convected away, but if all you've accomplished if throwing that blanket over some other hot components that aren't visible through the vents, you may have greater problems in the future. Make sure you use a canned compressed air sold for cleaning electronics, otherwise there may be harmful propellants or liquids mixed in. Read the instructions, and if they tell you to always hold the can upside up, be careful to obey, because holding it upside down may result in squirting liquid

Posted on Jun 05, 2008

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Check if the fan at the back of your system is working
if its not get it replaced

Posted on Jun 05, 2008

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Your CPU is overheating. When this happens the safety mechanism causes your computer to shutdown to prevent further problems. The CPU fan will need to be replaced.

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Hi.

If your computer turns off after idling for a while, then check power saving settings, accessible from control panel.

If laptop turns off while you are using it, try first reinstalling the system to exclude system problems, or test the laptop starting OS from CD or staying in Bios settings mode, so to exclude installed system.

If laptop is still shutting down, then problem may be overheating.

Overheating usually happens when the fan is not coming , therefore when the computer overheats.Or the fan is not cooling enough and computer is overheating.

Monitor computer temperature using a software, check if Fan is coming up when temperature gets critical.

If fan comes up but does not cool enough, then replace the fan, it is not efficient anymore because of a bad bearing or dust. ~Also ensure that fan is well mounted, if fan has poor contact with CPU surface , cooling will be poor.

If fan does not come up, and critical temp is not detected, then the sensor on motherboard is bad, this is very uncommon. When this happens the problem is usually related to system or power settiings , rather than overheating.

If fan does not come up and temp is critical, then fan is faulty, replace it.

There are also more than one fan on many laptops, check that one of the fans (CPU fan, video fan) is not completely ded, and therefore cause for the problem.

By using the software below you can also find out if the problem is really overheating. If temperature results within normal range, then usually it is not overheating.In that case test systtem and check power saving settings.

Here is the software to control your fan and temp. sensor state:

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Hi.
If computer turns off when idle, then check power saving settings, accessible from control panel.
If laptop turns off while you are using it, try first reinstalling the system to exclude system problems, or test the laptop starting OS from CD or staying in Bios settings mode, so to exclude installed system.
If laptop is still shutting down, then problem may be overheating.
Overheating usually happens when the fan is not coming , therefore when the computer overheats.Or the fan is not cooling enough and computer is overheating.

Monitor computer temperature using a software, check if Fan is coming up when temperature gets critical.

If fan comes up but does not cool enough, then replace the fan, it is not efficient anymore because of a bad bearing or dust. ~Also ensure that fan is well mounted, if fan has poor contact with CPU surface , cooling will be poor.

If fan does not come up, and critical temp is not detected, then the sensor on motherboard is bad, this is very uncommon. When this happens the problem is usually related to system or power settiings , rather than overheating.

If fan does not come up and temp is critical, then fan is faulty, replace it.

There are also more than one fan on many laptops, check that one of the fans (CPU fan, video fan) is not completely ded, and therefore cause for the problem.

By using the software below you can also find out if the problem is really overheating. If temperature results within normal range, then usually it is not overheating.In that case test systtem and check power saving settings.

Here is the software to control your fan and temp. sensor state:

Download SpeedFan - Access temperature sensor in your computer

Download SpeedFan 4.38

SpeedFan - Free software download

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