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Boot problem My pc is producing alot of noice on the processor fan and it is not booting, checked on processor, power supply and heat sink and they are ok

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  • Ravel Lively
    Ravel Lively May 11, 2010

    Be a detective, exactly why do you think the processor, power supply and heat sink are okay? Saying so doesn't make it so!!!!!



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Sounds like your CPU fan may be failing (bearings seizing), and that is either causing the CPU to overheat and shut down, or the fan may be drawing excessive power and causing power droops.

Posted on Sep 03, 2008

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Heatsink


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

Jan 19, 2013 | HP Compaq Presario SR5610F Desktop PC

1 Answer

Bad processor on my hp compaq


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



Hope this helps

Nov 11, 2012 | HP Compaq dc5100 Microtower PC Desktop

1 Answer

My acer Keeps shutting down Could it just be dirty or do need to upgrade the power supply


Overheating When the CPU overheats then it will shut down (i.e. thermal overload) and won't boot up again until it has cooled down. If this is the problem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are clogged with dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make sure the vents are clear and dust free. Use a small brush and can of compressed air to do this.

Aug 18, 2012 | Acer Black AX3400G-U4802 Desktop PC with...

1 Answer

DELL 8400 MAKES A LOUD FAN NOISE AND WONT BOOT


There are 2 basic fans in Dell tower one for the power supply and the other for the Processor. If your computer is not booting then the Processor fan is most likely to be the culprit. What could be happening is that the Processor fan is no longer turning fast enough to cool the processor, so normal the processor when it over heats there is either protection to switch off the computer automatically or the computer won't boot. The best thing is to change the fan and make sure it is working properly but checking on the cables that they won't entangle on top of the fan to impede it's movement. You can easily damage your processor if the fan is not working properly.

Oct 18, 2011 | Dell Dimension 8400 PC Desktop

3 Answers

Optiplex GX280 - loud fan at start up and amber power light - does not boot and no light at the back


Apply pressure on the heat sink fan right before you press the power button and continue applying pressure. Watch your screen if you see it boot this means its a problem with your processor clamp that applies pressure to the processor. Try to remove the top part of the clamp. Shouldn't be too hard with some needle nose pliers. Then just replace the heat sink and fan with out that clamp.  

May 27, 2010 | Dell OptiPlex GX280 PC Desktop

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 PC Desktops

4 Answers

Acer veriton M460 will not boot up


The acer veriton m460 has three faulty capacitors. Check and see if you have bulgy capacitors. I have ten of these computers and all have three blown capacitors.

Jul 31, 2009 | Acer-Veriton-M410-US3800P AMD Desktop PC -...

1 Answer

Computer won't boot up


Check the heat sink connected on your processor and its cooling fan is working or not

Apr 09, 2009 | HP COMPAQ Presario SR5410F Pentium...

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