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COMPAQ Presario SR1220NX - Heat Sink/Fan

Pretty sure that the fan on my heat sink/fan is no longer working. Nomally, it would activate every five or ten minutes, and it was audible (read that as noisy, but it didn't sound like it was quitting). It doesn't seem to be activating like it was; how can I diagnose?

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The processor fan should always be spinning; the variance is how fast it is spinning to dissipate the heat. The audible you would hear was most likely the fan spinning faster.

Take off the side of your case and turn on your PC. Is the processor fan spinning?

Also if it is a fan issue you will begin to experience heat issues on your processor that will start to force your PC to shut down in order to protect itself. I don't suggest you allow this to continue to happen as you will eventually fry the processor.

Posted on Jul 10, 2008

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INSIDE A COMPUTER OR THE HEAT SINK FOR YOUR COMPAQ COMPUTER?

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 and speed of processor for your motherboard before purchasing a replacement.

Turn off the computer and disconnect all cables. WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards 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.

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=thermal+paste

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

http://www.kitchentablecomputers.com/static.php - 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.


http://www.hardwaresecrets.com/article/Thermal-Compound-Roundup-February-2012/1490



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How did you clean it?
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