Why is the fan on my laptop so loud
How to Solve Loud Laptop Fan Noises Caused from Overheating
can you guys hear the fan noise from
this laptop hopefully you can because
that's today's subject is a loud laptop
cause from a fan that's going full blast
all the time from just a few minutes
after you turn this laptop on till you
turn it off this fan is going full blast
and it's annoying and I've seen this
happen to a lot of laptops not just a
HP's this is a pavulon but it happens to
all types and generally the problem is
caused from blockage in the cooling
system the cooling system on these
laptops are very small and these produce
a lot of heat and if there's any
blockage at all
they run hard because they need that
extra speed so we can probably clean
this out and improve it maybe a
defective fan but we'll find out when we
get in there anyway today the mystery of
the loud laptop hopefully will quiet it
down let's get started on that
for this HP I'll show you where the
cooling system resides but this is true
for just about all makes and models of
laptops not just HP in your top
left-hand corner on the bottom you'll
find these vents here here and here
there are vents here here and in various
other places as well but for the most
part these three vents are the main
vents were cooling the CPU and the video
card and that's where mostly comes from
and also the sound the loud fan sound is
coming from this vent I don't know if
you can see it I've got a flashlight
here but there's a fan under here and
we'll get a lot better look at that once
I take this apart but the way that this
works is air comes in through here this
is our intake passes through some
cooling blocks and I'll show you those
again when I open this and then the hot
air is expelled out these two air vents
here so it's just a continuous cycle if
you've ever put a laptop down on a
blanket and it starts running hard or
hot that's because this intake is
blocked and generally if you have this
set on a hard surface
these feet keep this up off the surface
slightly so that this gets air intake
you know but if you have it on a blanket
a lot of times it conforms to that vent
and it's not getting the air that it
needs but anyway back to our problem the
air comes in and then out and if we have
dirt blocking any of these ports at all
it's not getting the full cool if you've
ever had a dirty household fan
know that once you clean the blades it
works a lot better and this is the same
principle I would like to add that a
quick fix for an overheating or loud
sounding fan is to just take a normal
vacuum cleaner and to clean out around
these vents and actually take the vacuum
cleaner and put it right on top of these
vents and try to remove the dirt that
way and this might work for a while and
temporarily fix your laptop but it can
also cause the dirt to move especially
if it's like pet hair and it can jam
even worse so you know it may work for a
temporary but it's always better to take
it apart and that's what we're going to
do here today since we're taking apart
our laptop we want to do it the best
that we can without guessing and the
internet your friend so what I suggest
you do is to Google service manual and
then the name of your machine in our
case it's the HP pavulon and we have the
DB 6700 and in these service manuals
it's like a PDF and it will tell you how
to disassemble certain things so let's
see if I can find what I'm looking for
here right here fan heatsink assembly so
if we go to page 86 it tells us how to
remove the various parts and screws and
take apart this laptop so that's the
best advice I can give you is try to
find a service manual for your
particular machine instead of just
removing screws or randomly this will
really help you up so I'm going to go
ahead and use this guide to open this
laptop and get to our fan so to begin
disassembly of a laptop you always want
to disconnect it from your household
mains and room
the battery I wanted to say something
about this HP I usually call this a
pavulon and I know that most of you
pronounce it Pavillion and it probably
is pavilion but I always said pavulon so
forgive me if I say pavulon and if it
bugs you that much don't bother comment
and just stop watching the video I've
had other HP videos in the past and
people just gripe in the comments about
my dialect instead of you know the main
problem of what the video is about but
instead of complaining and griping about
it just to watch something else so what
I'm doing is I'm removing the covers
from the optical drive I'm sorry from
the memory and the hard drive and then
I'm going to remove the optical drive
and that's usually the first step and
disassembling these and then what I like
to do is put all my parts together so
I'm not confused later like I'm going to
pull this laptop or this hard drive out
and this is the cover for it so I'm just
going to keep these together off to the
side over here and a lot of times like
if I take out a screw like this is the
screw for the optical drive here let's
take that out and it helps to have a
magnetic screwdriver so I'm going to
pull this out you know put the screw
right there and I'll tape it right to
that way I know that that screw belongs
to this it's important that you remember
where the screws go and as you're taking
out screws I like to put them on the
table and remember where they go and
even write a note if you have to because
if you put a long screw where it doesn't
belong you can actually damage certain
components so now that I've got the
major components of this out
and I could take out my memory I'm gonna
go ahead and refer it to my service
manual online get these screws out here
so really the only tool you need for
most laptop disassembly is a good
phillips screwdriver this is a pretty
good one here I like the kind with the
swivel top because you can hold it like
this and swivel it you know without
letting go this is a 261 and you know
for a few bucks you can have a pretty
good screwdriver and magnetic is
important so I'm going to take out these
three screws first and that should
release the cover I switch cover on the
front
hopefully I won't have to take this out
even though it's not no big deal
that's my that's my Wi-Fi and Bluetooth
module there I might have to pull these
wires through hopefully I don't have to
all right I've got those three screws
out let's see if I can get this switch
cover off-grid under here
if you have to do any prying I recommend
using a guitar Peck you know a heavy
guitar Peck works fast or a piece of
plastic that way you're not marring the
finish let's go like a little ribbon
cable on there on the back let me go in
for a tight shot on these ribbon cables
there is a certain way to take these off
maybe I can be some help to you
so I've got a tighter shot on these
connectors here's one and here's one
here and this is a press-on connector
you have to be very careful with these
because they break very easy but to
remove the cable you just simply I have
a flat bladed screwdriver here take your
fingernail or a screwdriver and just
slightly push this plastic ahead just a
little bit see how it's moving just like
that and then with that sticking out
like that you can just pull on this
water will come right out and then when
you're ready to put it back in make sure
that this is forward like this would be
in
and then push a wire in then close that
back let's do this one here push it
forward like that then pull the wire out
most of the time that's the type of
connectors that are on these laptops and
then you'll have these Prospekt
connectors like this and these just pull
out and usually I just use my fingernail
and pull them like that just be very
gentle you don't want to break these
there we go
now we can start to see our fan and
you'll notice too that there's a lot of
dirt I'm starting to see around these
connectors so I expect there will be a
lot more inside here and that makes
absolute sense because our fans are
running so hard okay now I'm going to
try to take the keyboard out here
now another tip that I'll share with you
is like there's a screw right here for
the keyboard and you might not be able
to see it but engraved in the plastic
right here is a picture of the keyboard
so that's telling me that that screw
right there is holding in the keyboard
there's one blue over here now the
service man only showing four screws
even though I can only find three so
evidently they've changed things or I'm
missing a screw somewhere so I'm going
to remove these three and see if though
that'll take the keyboard out the
service manuals showing another screw
over here but I can't I don't see it
anyway let's flip it over and see if we
get that out of there a lot of times
they'll put out one service manual for
once you different types and then
they're a little bit different they
don't bother to tell you so yeah there
was only three holding the saloon
so you can see there's another one of
these clips holding this keyboard in
there called zero and zero force clips I
believe is the name of these on these
types you lift up these little wings
then you pull it straight out just don't
force anything I can see evidence of
hair in this quite a bit of hair
there's our keyboard so it looks like
we're going to have to go deeper what
we're looking for is under here certain
computer models are a real pain to get
to defends and you pretty much have to
take everything off including the
display it's just a fact of life we
don't like to do it if we don't have to
but to get this front cover off it's a
necessary evil
well hopefully you're still with me I
know it was a long road to get to this
fan but here it is and I've just taken
the screw out of there let's take a peek
inside here and see what's causing all
the problems hopefully you can see that
this is pack solid full of dirt just
solid see they're the same could breathe
it was just choking on its own dust and
really all the way across is totally
blocked up this probably would have
benefitted from just taking a vacuum and
pulling on this before taking it apart
but who's to say this would even fit
through the vents you know and as far as
the fan goes the fans fine but I'm going
to go ahead and replace it anyway
because I'm already in here I might as
well and I'm also going to change the
the compound on the heatsink you know
put new comp piecing compound down and
and redo that but that was the main
problem as that dirt was just walking
those guns and there's not much there
for vents anyway so that was the cause
of our problem so I'm going to get a
vacuum clean this all up and start
putting it back together change out that
fan well the work is complete and the
computer sounds absolutely quiet I've
let it run for about an hour now and you
can barely hear the fan so it's pushing
here better than ever and that was the
problem just a little chunk of dirt so
it took some time and we definitely had
to take it right down to the motherboard
and really in real time it was about an
hour's work or maybe a little more for
somebody that's never done this before
so if you have to pay a technician an
hour's worth of work they also have to
make a living so they're going to have
to charge you a couple hundred bucks
anyway and for a used computer how much
can you buy a new computer for maybe
$300
so it doesn't make sense to really send
this in for repair anymore and that's
why a lot of repair shops just tell you
to buy another one and again that's why
I'm putting these videos out not
everybody has three hundred dollars to
throw at another laptop so this will
help you to fix your own if you have
this sort of problem it's certainly not
hard it only takes a few tools and some
time and you just have to be mindful of
your screws and remember where
everything goes a lot of times pictures
will help if you're taking apart
use a camera and take a picture where
screws go and certain wires go and if
you break it it was broken anyway and
this will also solve laptop shutdown
problems if you're having trouble where
a laptop will only run about an hour or
so and then it shuts down he is the
number one thing that causes these
laptops to fail and HP has certainly not
helped the industry any by making it so
hard to fix it I understand why they do
it they want you to buy a new computer
but at the same time it makes it not
fixable by most you know what I mean so
anyway I hope you got some use out of
this video and you liked it if you did
give us a thumbs up and we'll see you on
the next one thanks for watching and
take a look at the ending I found out
where all my stuff that I shot out of my
cannon for the fourth of July went it's
kind of interesting it's in the ending
credits so make sure you watch out
we'll see you thanks for watching
I remember when I shot the air can on
the other day here's some paper that I
didn't pick up words making a nest of it
seems just the white paper how hot is
out don't see mama anyway how cool is up
