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How do I remove the Processor Fan to clean the dust in the heat sink

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  • ivanvalles Mar 15, 2008

    how do I remove the Processor Fan to clean the dust in the heat sink because the computer freeze after a few minutes of use.


  • ivanvalles Mar 16, 2008

    find the clips and unclip it
    thanks for the help


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Well, sometimes there are screws, sometimes there are clips. Unclip the clips, Unscrew the screws, and joy to the world.

Posted on Mar 16, 2008

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Machine running, fan suddenly speed up too high, so i log out shut down, powerup/shutdown in seconds with flashing red light, continuosly

This has been a problems that is really easy to fix as long as your a bit careful. The problems is the design of the heat sink on the processor, the design flaw makes it possible for dust to collect on the heat sink on the processor allowing the heat to build up very quickly when using the processor a lot which tells the fan to speed up to attempt to cool things off but because of the excess dust it cannot do so.
On the e-machine it is easiest to use compressed air to clear the dust on the heat sink for the processor, however do not have the computer turned on when doing the cleaning, and if your using a air compressor blow gun, you should limit the pressure to 100 lbs or a little less and then be careful not to blow directly on the fan so the fan spins up (by the air flow) too fast because it can damage the fans bearings.
Note: this machine will collect a lot of dust in the heat sink so when blowing it clear it will produce a dust cloud, you may wish to do it in an area where dust will not be a problem for other things, people, or pets.

Aug 28, 2013 | E-Machines eMachines Desktop PC


How to reduce fan/revving sound of a somehow old desktop PC

Old (& sometimes new!) computers make annoying and disturbing ventilation sounds that the user can not take it anymore.
Most of the time, it's related to the dust that is 'collected' on the computer's internal components (static electricity and stuff). Cleaning out that dust will not only make your computer quieter, but also slightly better performing (as less dust means less heat, and less heat equals better performance).
I have seen some computers even not start up or barely sustaining a minute of power up before shutting down, because of much dust inside.

1. The whole operation will be done outdoors, as there will be much dust extracted.
2. This is what you will need:
- Domestic Air blower (cool air) or an compressed air duster compressed can;
- Clean piece of cloth;
- Your computer's case (of course).
3. This is what you should NOT use:
- Hair dryer or any hot air blower: the air blown should be cool;
- Paper tissue or some other fabric which leaves behind small particles.

Get your computer on the table, and open the case. Often, it's either a couple of screws or clamps away.
Let your computer rest upwards, vertically: the dust coming off wouldn't get back in easily.
If you're going to use a compressed air duster can, DON'T shake it before spraying: you will mix liquid with gas, and will ruin your computer. This is one of the reasons I prefer an air blower over the compressed cans (which also run out of pressure).
You might, at first, need to stay a little away from your computer, while blowing off the 'first coat' of dust. When no more dust is coming off, spray over the corners and hard-to-get areas, to clear what might remain there.
After doing that, you still have 2 important components to clean: the power supply and the processor. Both will hold an amazing amount of dust, so be careful not to choke :)!
Cleaning the power supply is straight forward: blow air through the vents, from both (or all) sides, until no dust seem to go off anymore. Don't worry if the internal fans start rotating with the air you're blowing: they won't get broken, but they will become clean.
As for the processor, if you're experienced enough, the best way to clean it is to take it apart. But DON'T do it if you don't know what you are doing!!!
The easy way to clean it is just blowing air on its heat sink and fan, until they're clean enough.
Should you choose to take it apart, take off the heat-sink/fan package. Leave the processor in its socket. Clean the heat sink with air blows and then with the cloth. Same thing with the fan. If you have thermal paste, you might as well clean the processor, but if not, don't bother taking it off. After they are clean, put back the heat-sink and the fan on top of the processor and lock them securely.
Close up the case of your computer, and you're done!
Your computer now should be more quiet than before, and as stated earlier, you might even notice a slight increase in its performance!

on Mar 19, 2010 | Computers & Internet

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Bad processor on my hp compaq

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. - rules

The "CPU" or central processing unit, otherwise known simply as "the processor," is the primary "brain" of the computer.

Processors are very finely engineered components that are not repairable.

But replacing a failed processor is an option for the owner of any model Compaq Presario desktop computer.

Just check with HP/Compaq for the correct size and speed of processor for your motherboard before purchasing a replacement.

Turn off the computer and disconnect all cables.

Remove the cover.

Lay the computer down flat.

If there is a plastic hood covering an exhaust fan, remove it by pressing in on the indicated release tabs.

Examine the processor assembly.

The processor is a square chip that is covered by a metal heat sink with fins.

A fan will often be mounted on top of the heat sink; unplug its connection to the motherboard.

Two clips usually secure the heat sink assembly to the top of the processor.

Gently press down and slightly away on the flat end of a clip to release it.

Avoid using a screwdriver to release a clip a slip could scratch the motherboard.

Release the clips and gently remove the assembly.

The heat sink should separate, leaving the processor behind in the chip holder.

Clean the bottom of the heat sink.

Use a paper towel and a dab of solvent cleaner to remove the old thermal paste.

Set the clean heat sink aside.

Lift up the lever to unlock the old processor and remove it from the pin mount.

Insert the new processor chip.

Align the pins on the processor to the "cut off corner" or dot on the pin mount.

The processor should drop into the pin holes easily.

If the processor won't drop in easily, check the pin alignment.

Once the processor is inserted correctly, pull down the lever to lock in the chip.

Apply thermal paste to the bottom of the heat sink.

Apply enough paste to cover the area of the small gray rectangle on top of the processor.

Apply the paste with a spreader made from a piece of flexible plastic.

Spread the paste evenly to a thickness of two sheets of paper.

Check the heat sink mounting alignment and lower the heat sink onto the top of the processor.

Reinstall the mounting clips.

Reattach the heat sink fan to the motherboard if necessary.

Plug in the computer and monitor and boot.

If the machine won't boot or it emits warning "beeps," unplug the power and monitor, and troubleshoot your work until the computer boots successfully.

Shut down again and replace the exhaust fan hood.

Close up the computer and reboot.

Hope this helps

Nov 11, 2012 | HP Compaq dc5100 Microtower PC Desktop

1 Answer

Clean heat sink

Yes you can, remove the cover off the desktop computer to get access to the fan and heat sink over the CPU.
Use a stiff brush to loosen the dust off the fan and heat sink and vacuum the dust off the fan and heat sink. You may need to use a can of compressed air to blow the dust off the fan and heat sink then vacuum the dust out.

Aug 24, 2012 | Gateway GT5220 PC Desktop

3 Answers

Pc suddenly powers off

that can be meaning if the processor is Not Supported with your motherboard,or the New Processor is not in good condition (can be Over Heat or damage).
Processor over heat or damage can be because the HEAT SINK (white or grey pasta at the top of processor) is not enaugh to cooling the processor or,the fan Proseccor is Dirty.

Jan 18, 2012 | Computers & Internet

3 Answers

How to overcome overheating issue in my desktop?

Depends on what's overheating. If it's you processor you have to replace the thermal paste between the heat sink and the processor, if it's the ram you need to make sure it has proper ventilation, if it's the hard-drives the same etc. You need to be more specific.

Oct 19, 2011 | Computers & Internet

2 Answers

My fan keeps speeding up , then it slow downs what causes this? an how can I fix this?

which fan is doing this? Mostly likely it is caused by dust or overheating. Use a can of compressed air found at any electronics store to clean the dust out from inside the computer. If that doesn't solve the problem I would next try replacing the fan.
thank you,

Sep 21, 2011 | HP Compaq Presario SR2170NX (RK549AA#ABA)...

1 Answer

My dell optiplex gx 620 system fan run so fast and produse a lot of noise when i play games or downloading data from net

Open up the computer and clean the dust out of the fan and processor heat sink. If it is a temperature-controlled variable speed fan, it will probably not have to work so hard to keep the processor cool.

If it is a fixed-speed fan, it may be getting loud because the bearings are wearing out. Gently try to rock the fan blade unit - it should not have any wobble or slop in the bearings, and it should rotate easily.

If necessary, clean as much dust as you can out of the power supply without taking it apart.

Do not use a regular vacuum cleaner to **** dust off the motherboard. The high-velocity airflow may generate electrostatic charges that can damage the board. It's probably OK to vacuum out the heat sink if you hold the fan still to keep the vacuum cleaner from over-speeding it.

Apr 29, 2011 | Dell OptiPlex GX620 PC Desktop

1 Answer

Otiplex 760 will power up breifly and shut off as if the thing was unplugged , sometimes will stay running for a few minutes and sometimes will shut off immediatly. I cleaned the old heat element compound...

1. Try blowing the dust on the motherboard, if any hard dust is present, use soft brush to clear it.
2. Again remove the Heatsink on the processor, completely clear the compound using soft cloth, There should not be any hard particles or dust left, apply heat sink compound on both the heat sink side and on the processor, put back the heat sink and fan.
3. Check whether the power button on the cabinet is not struck and functioning if possible try to replace the button.
4. Blow the dust even from SMPS or try with another if handy.

Sep 05, 2010 | Computers & Internet

1 Answer

My hp media center m7160n computer powers up, has a definite fan sound, normally the fan sound diminishes and the computer boots up. For the last several months, the high speed fan sound would not diminish...

How did you clean it?
The last one I worked on had the fins of the Heat sink totally blocked with dust. This will make the fan scream trying to push air thru the heat sink to cool the processor. If it isn't cooled it will shut down in short order.
You must BLOW it out. Use a pressurized air can. Better if you have a compressor with a nozzle.

The other issue may be the interface between the CPU and heat sink is defective. Heat sink moved or become loose.

Of course by this time the processor could be dead also.

May 17, 2010 | HP Computers & Internet

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