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When i plug-in the computer, the processor's fan automatically on

When i plug-in the computer, the processor's fan automatically function, and when i press the power button, after 5minutes it automatically shuts down.

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This does sound extremely like an overheating problem.

There are two parts to fixing this problem.
First is to take th side off the computer and check for dirt build up around the fan and power supply.

Disconnect first.

If you see a build up then get yourself a can of compressed air for cleaning computers and then take the unit outside.
Now with the nozzle on the can and whilst wearing glasses spray all the builds up out of there. DON'T poke the nozzle inside anything.

Now look at the cooler first. Computer are designed nowadays to shut themselves down if there is a problem or speed up the fans.

What you should do is check the fan assembly and if it is loose at all that would give good reason to do what I am going to advise.
Disconnect the fan from the board.
Check your manual for the exact instructions but you should remove the cooler completely

DO NOT REMOVE THE CPU

Now with nothing more than isopropynol and cotton bud sticks or another alcohol based cleaner remove the old thermal grease / sticker from the top of the CPU (make sure it is clean)

At this point it is up to you but you could consider a newer better cooler
You could take your old cooler to a good computer shop show them it and just ask for a better one

If you are using your original cooler then here we go
Do the same with the underside of the cooler.
While the cooler is off it may be worth giving it a good 8low job
.
Now apply some new thermal grease (most computer shops have it)
Be careful about how much you put on

Here are some basic instructions

Once you have re-assembled your cooler and re-connected it check everything is OK and power up the computer.
If everything went to plan you should now be back in business.

Another consideration is that many cases have places in them for extra fans and usually extra connections on the motherboard too.
They are quick and easy to fit.
Quite often I will fit TWO in what is called a push/pull configuration. One pulls cool air in while the other pushes hot air out

Posted on Sep 07, 2009

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Posted on Jan 02, 2017

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Turn the computer on.
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