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Why my cpu fan stays on all the time

Acer desk top

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CPU fan is on all the time in computers.

Posted on Apr 21, 2015


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Posted on Jan 02, 2017


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My HP Pavilion 753n was really dusty, so pulled out the fan to the PC board, carefully put it back in & now when I turn it on the light stays yellow & the only fan running is on the power supply.

carbon dating, and ID (its 2002 PC?) its not supported NOW.

i must look up all this 1000s of numbers to see, oh
its a deskop or laptop, Pavillion has both.
to help anyone i must join your DECADE (year) 2002 time warp)
OK desk top, year,with Virus magnet XP
i guess you meant you pulled the cpu FAN OFF THE CPU
RIGHT? DETAILS MATTER, in the puter world.
that means you wrecked, the heat sink compound there....
so buy some HS compound and put it back. (or dislodged CPU at pins) the CPU will shut it self off in seconds, lacking a working HS
heat sink, (all by its lonesome) (intel inside, does that)

next time use shop air or canned air and avoid ever removing
any working CPU fan. or land here, every time.
in all cases a VACUUM cleaner is useless in this SPOT.
unless plugged into 240vac (that is a joke do not do that)
that was a tech joke....
why not get it services first or ask how to clean any PC
and not damage it.
look for wires unplugged, that to is common error.

in all cases (no pun) is use both shop air and vacuum.
one gets it loose, vacuum sucks it up so not tons of line all over shop. or do it outside, now that works every time,
let the dust fly, (can-o-air) get that?

May 10, 2017 | HP Computers & Internet

1 Answer

Acer aspire z5600 won't turn on

The computer is not getting enough power, check the charger or the charging port. If both the charger and the charging ports are fine, then it is time for a new CPU/motherboard. You could have dropped it or the computer could have overheated a number of times to create a CPU/ motherboard problem.

Jan 16, 2014 | Acer Computers & Internet

1 Answer

My pc shuts down on its own after a few mins

It could mean that the CPU fan has died or the heat sink is full of dust if either of those has happened raising the computer off the desk won't help because the CPU will overheat anyway and shutdown the computer so that no components end up being fried

Dec 01, 2013 | Acer Aspire Computers & Internet

1 Answer

Acer, aspire beeps

try taking out the memory sticks and putting them back in one at a time (if you have more than one)

Feb 17, 2013 | Acer Computers & Internet

1 Answer

How ca i change the fan in my desk top packard bell model imedia2426

Which fan? The cpu or the PSU fan? The CPU fan a easy fix. The PSU , replace PSU.

Jan 05, 2013 | Packard Bell iMedia Computers & Internet

1 Answer

My acer aspire one netbook is freezing whenever i stay on it for more then an hour,my laptop has no virus, i think it is the cpu do i fix this?

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.

Dec 06, 2012 | Acer Aspire One A150-1006 Notebook

1 Answer

Why my desk top keep turning off and off by it self

excess heat the cpu needs to be cleaned and the fan removed from the cpu and new lithium grease installed on the back of heat expansion fins. fan replaced back on top after cleaned and turned back on

Dec 13, 2010 | Dell Dimension 4550 PC Desktop

1 Answer


you could of:

A: Blown your CPU.

B. Blown your RAM.

One of them have to replaced. I suggest you try the RAM first cause it is the cheapest. if you can't do it, have your local PC shop take care of it.

Jun 11, 2008 | Computers & Internet

2 Answers


is your monitor and the cpu are of the same make,if not some times you get this problem because your monitor is not compatible with your can solve this easily with help of your hardware vendor

Nov 04, 2007 | Acer AL1912B 19" LCD Monitor

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