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Cooling fan on my Phillips laptop works intermitently

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This is a serious problem that can harm your laptop if you don't resolve it. Sometimes, a BIOS update can solve fan issues. Go to the manufacturer's website and search for your computer's model number, to see if they have a BIOS update in their support section.

Most likely though, you'll need to have physical work done. If the BIOS update doesn't help, take it to a nearby computer shop to have it looked at.

Posted on Apr 09, 2008

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Laptop keeps overheating and shutting down even with cooling pad.


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 memory modules from their slots.
Take the opportunity to clean the slots on the motherboards and the memory module connectors.
Use compressed air to blow dust away and clean contacts with a soft cloth.
Do not use a metallic vacuum cleaner if it touches any component it may create a short and cause damage to the motherboard or other components.
Do not use solvent that may attract dust and never poke things like cotton buds in to slots. lightly rub an alcohol (Methylated Spirits) on a cloth not to hard let the alcohol do the work on the copper gold or silver tabs and r
Allow the pins to dry.
They will air dry in a matter of minutes
If reseating the memory did not resolve the issue try swapping the location of the memory.
If you have only one stick of memory in the computer try moving it to another slot and then boot the computer.
Check the memory module and memory slot contacts.
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http://www.onepcbsolution.com/
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There is a connection problem such as a bad cable

Test all power and data leads that attach to your hard drive SATA

the leads from your MOTHERBOARD TO THE HARD DRIVE make sure they have a
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Computers need power and data to travel through every working device and continue its cycle and have an end so any faulty leads will end up with a computer error


also
Your laptop's cooling system consists of a cooling fan and a heat sink, which is a metal plate with a copper pipe extending out of it.
When your cooling fan goes bad, it causes your CPU, or processor, to overheat, which can cause irreparable damage to your laptop's motherboard.
In most cases, your cooling system can be prepared by simply cleaning out the cooling fan assembly. It's for this reason that regular cleaning and maintenance of your cooling system is instrumental to the life of your laptop.

Turn off your laptop and disconnect the power cable.
Disconnect any other cables or external devices and close the LCD panel until it latches shut. Place the laptop face-down and remove the battery pack from its compartment.
Place the laptop face-up, then open the LCD panel.
Pry up the keyboard bezel from the laptop with a flat-head screwdriver.
The keyboard bezel sits between the keyboard and the LCD assembly.
Remove the bezel and set it aside.


Remove the Phillips-head screws securing the keyboard to the laptop base.
These screws are usually located beneath the keyboard bezel.
Some laptop models secure the keyboard to the laptop casing from the bottom.
Those screws are usually located either inside the battery compartment or on either side of the RAM module compartment.
Additionally, some laptop keyboards are secured by retaining tabs located behind the top row of keys on the keyboard.

Lift the keyboard out of its compartment and place it face-down over the palm rest.
Use a small flat-head screwdriver to disengage the black tabs on either side of the keyboard ribbon cable where it connects to the motherboard.
Disconnect the ribbon cable from the motherboard, and then remove the keyboard from the laptop.

Remove the Phillips-head screws from the motherboard/CPU cover or EMI shield.
The EMI shield is metal plate covering that protects the motherboard and CPU assembly.
Remove the EMI shield from the laptop and set it aside.
Some laptop models do not have an EMI shield.

Remove the Phillips-head screws securing the cooling fan to the motherboard.
Disconnect the fan cable from the motherboard and lift it out of the laptop assembly.

Wipe dust off of the cooling fan assemblies exterior with a soft cloth or paper towel.
Blow the dust out of the fan with a can of compressed gas duster.
Use a small paint brush to remove the dust from deep inside the cooling fan.
Work under good lighting so you can visibly see the interior of the fan.

Repeat steps one through six in reverse order to re-assemble the laptop.
http://www.fonerbooks.com/lap_fan.htm

http://www.insidemylaptop.com/remove-keyboard-clean-cooling-fan-hp-compaq-6515b-laptop/

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As with any hardware on your laptop, the fan may stop working. Your laptop's fan serves as the dedicated cooling system for the CPU. If your CPU overheats it will cause severe damage to the motherboard. It may also cause electrical damage hardware devices nearby the CPU. Most HP laptops are designed with CPU fan located on the top side of the motherboard. There are a few HP laptops with the CPU fan located on the bottom side of the motherboard.

Shut down your laptop, and fold down the LCD screen. 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 Disconnect the AC power cable and any external devices. Place the laptop face down, and rotate the computer so the front opening is facing forward. Locate the battery pack in the upper right or left corner of the laptop. The location depends on your laptop model. Press on the battery's release button, and then lift the battery out of its compartment. Place the laptop face up and open the LCD screen all the way. Insert a flat-head screwdriver into the right side of the keyboard cover. The keyboard cover is a thin strip of plastic situated between the keyboard and LCD. Gently pry the cover from the laptop, and set it aside. Remove the Phillips-head screws located above the top row of keyboard keys. These screws secure the keyboard in place. Grasp the top edge of the keyboard, and then place the keyboard face down over the palm rest area. Disconnect the keyboard's large ribbon cable from the motherboard. Remove the keyboard from the laptop. Locate the small circuit board near the top of the laptop's upper casing above the keyboard compartment. Disconnect the cables from the circuit board. Remove the Phillips-head screws securing the circuit board in place. Close the LCD screen. Place the laptop vertically. Position the laptop with the back of the LCD hinges facing upward. Remove the single Phillips-head screw from the back of each LCD hinge. Place the laptop face up, and open the LCD screen until it is in the 180-degree position. Locate the LCD video cable extending from the left side of the LCD panel. Disconnect the cable from the motherboard. Remove the Phillips-head screws from each LCD hinge. Lift the LCD screen panel off of the laptop. Set it aside. Locate the CD/DVD drive inside the right section of the laptop's upper casing. Remove the Phillips-head screws securing the drive in place. Grasp the face of the drive and slide it out of its compartment. Place the laptop face down. Remove all remaining Phillips-head screws from the bottom casing of the laptop. This includes any screws inside the battery compartment, and on the back panel of the laptop. Flip the laptop over, and remove the remaining Phillips-head screws from the laptop's top casing. Locate the touchpad cable situated just above the touchpad area. Disconnect the cable from the motherboard. Remove the top casing from the laptop's base. Locate the CPU fan in the upper left corner of the motherboard. Remove the Phillips-head screws securing the fan to the motherboard. Disconnect the fan's power cable from its connector on the motherboard. Lift the cooling fan out of the laptop and set it aside. http://www.youtube.com/watch?v=qcy0YSOmX4E How to Clean the Fans on HP DV4 - Overheating This might not be you laptop but it might give you some insight. Hope this helps.

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1 Answer

How to change the cooling fan in a toshiba laptop model p200d-139



Instructions

Shut down your Toshiba laptop, and then disconnect all cables. Close the LCD lid, and then place the laptop face down on a flat surface. Position the laptop with front edge facing you.

Locate the battery pack near the top section of the laptop's bottom casing. Press on the battery release button. Remove the battery from the laptop.

Locate the cooling fan compartment cover. Its location varies from laptop to laptop, but it will be the only hardware cover with a vent in it. Remove the Phillips-head screws securing the fan's cover in place. Remove the cover from the laptop.

Disconnect the fan's cable from its connector on the motherboard. Remove the Phillips-head screws securing the fan in place. Lift the old fan out of the fan compartment and set it aside. Removing the old fan will reveal the processor chip. Apply a thin coat of thermal grease to the processor's surface using a clean paper towel. This will prevent your new processor from frying once you power on your laptop.

Place the new cooling fan assembly inside the fan compartment. Align the screw holes on the new fan with the screw holes inside the compartment. Replace the four retaining Phillips-head screws, and then reconnect the fan's power cable to the motherboard. Replace the fan compartment's plastic cover, and its retaining Phillips-head screws.

Replace the battery pack and reconnect all power cables and external devices. Turn on your laptop to test the new cooling fan

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