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  Laptop fan always on and really loud 
 
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Terri Demars Nov 27, 2005, 08:59am EST Reply - Quote - Report Abuse
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It may seem a rather mundane problem, but the fan on my laptop will not shut off and it is really loud. The manufacturers have told me that it needs to be fixed. The company I bought the thing from says the fan is supposed to be on always, that this is a design feature. I have one old laptop and recently purchased one for a teenager in the house. Neither of these has the fan on constantly or are they so loud. Can anyone tell me if it is possible that the fan should be like this. It is really irritating.


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Ecosse Nov 27, 2005, 09:21am EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
The fan is on due to the cooling - it's getting hot in there and needs to cool itself down - unless you are constantly running the likes of video editing software or intensive gaming then the fan should only come on when needed.

There is no manufacturer worth their salt who would produce a laptop which would run with the fan buzzing away full tilt all the time.

Ctrl + Alt + Del to bring up Task Manager and find out which processes are running - sort list by mem usage then post back everything with more than a 10,000k hog.

It may be a virus/spyware/malware hogging resources and pushing the cpu so much that it needs to cool the case down.

Ecosse

Specs here > > > > > http://tinyurl.com/ecosse08
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Shadow_Ops_Airman1 Nov 27, 2005, 09:27am EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
temperature sensors cause it to rev up, the fan is always on but spins at slow rate, when stuff gets hot inside it revs up so it can cool, btw who is the laptop maker, Im on a Dell XPS Gen 1 and its fans are always running, but when things heatup the rpms go up so it can push more air over the heated parts like vid card and CPU. Also another point i have my vid card clocked in this laptop and its stable has hell, course software allows this overclock and restore back to normal when not in 3d intensive programs.

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Terri Demars Nov 28, 2005, 05:28am EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
Thanks for your help. I really appreciate it. I tend to agree that no manufacturer worth their salt would knowingly set up a laptop so that the fan was always on. Thanks again.

Victor Hackney Nov 28, 2005, 10:07am EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
Hi! Terri,

Take note of what the previous posters Eid & Ecoose have said.

One thing that will cause a Laptop to be on all the time..and loud..is that the laptop has been used often lying on soft futnishings, carpets or a bed.

Over a period this cause a build ip of "fluff" and lint, which partially restricts the air- flow intakes....Full details of the Model would have been helpful.

Some HWA members often say use a compressed air canister, to disperse the restrictive material which is not the ideal way, although in mild circumstances can help.. But a handy person can make a vacuum adapter, fitted to a household Vacuum cleaner to remove the foreign material,...... if this is the cause of the restriction.

Regards
Take Care
LVH UK



All forces are equal and opposite
Ecosse Nov 28, 2005, 12:26pm EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
I actuall use one of these for the laptop - it has a variable speed to ensure you don't suck up a hard drive aswell as having a long nozzle thingy!
http://www.epinions.com/content_100584427140

Ecosse

Specs here > > > > > http://tinyurl.com/ecosse08
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Terri Demars Nov 30, 2005, 10:27am EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
Thanks for all your help. Special thanks to Ecosse as the noise from the fan was quite ridiculous. It was clearly impossible that this could be a design feature. I called up Packard Bell and the Tech guy said they would come and take it away (and hopefully bring it back in better condition) . We had trouble having a conversation because the fan is so loud. Sadly it is a case of being careful who you buy from. Like a donut, I bought the thing from PC World. Never again. Thanks again all.

V. J. Savage Apr 10, 2009, 11:57pm EDT Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
More than the fan sound, the smell coming out of the air vents on my Sony Vaio laptops is bothering me.. I sent one of them in to Sony due to a burnt smell and was told the fan was clogged, possibly aggravated by using the laptop on soft surfaces such as a pillow.

The fan is somewhat more intermittent now, but I realize I am getting tired of breathing the fumes coming out of the vent. This is definitely an issue all laptop manufacturers need to work on. I wonder how many VOCs these fumes contain?

john albrich Apr 14, 2009, 09:01pm EDT Reply - Quote - Report Abuse
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Edited: Apr 14, 2009, 09:12pm EDT

 
>> Re: Laptop fan always on and really loud
Also, if it was a used/refurb laptop. I THINK both Dell and HP (and likely others, possibly Sony) had problems with overheating nvidia video chips on the mobo, and the way they "fixed" the problem was to patch the code to make the fan(s) run continuously. But the 'burnt' smell could be a cooking mobo.

It was traced to a defective nvidia video chip design. So if your laptop uses nvidia chipset, you may have this problem.

The overheating chip caused the mobo to fail (interestingly near warranty EOL) and by masking the video chip design problem with their code patch for the fan, these two manufacturers took the ultimate failure to well past warranty. It was a sucky way to treat customers.

They later integrated new design chips into their manufacturing lines. It took them quite a while to address the problem.

Ultimately, I think they started swapping-out mobos but only if the customer knew what was going on.

You can probably find out more about it by searching on the net.

Lesson: whether you're buying used/refurb/retail, check for recalls and other "known" problems with specific models. Won't catch 'em all, but may help avoid some problems.


edit to add: link to more info
http://news.cnet.com/8301-13554_3-10020782-33.html

Edit to add:
Also note that some laptops have problems with the power connectors. This can also cause the 'burnt' smell. Ultimately, the mobo or connector becomes damaged due to overheating. Toshiba had a lot of problems with some of their power connector2mobo designs.

Suspended User Apr 14, 2009, 11:37pm EDT Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
Sigh, we get so many customers complaining that there fan is 'noisy' and when we open them, up it is literally clogged completely like lint out of a drier, the environment the laptop is used in is the reason. The only other reason I ahve seen in my experience with laptops is the Pentium Dual Cores being faulty and overheating, as soon as we replace them, no more overheating or crashing, with the same heatsink/fan.

The problem is, customers can not open their laptops to clean them without voiding the warranty, so its just the way it is......

john albrich Apr 15, 2009, 02:18am EDT Reply - Quote - Report Abuse
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Edited: Apr 15, 2009, 02:24am EDT

 
>> Re: Laptop fan always on and really loud
I've often used a combination of alternating cans of pressurized air and vacuum at the fan vents and it sometimes cleans out what I consider a lot of gunk from my 3 laptops. I always start with vacuum to minimize spreading more crap around inside the laptop, and I try to be sparing with the vaccum and pressurized air, using only fairly SHORT-BURSTS of sucks or puffs to dislodge dust while keeping the fan free-rotational speed way down. I also remove all removable items from slots in the laptop and do the same thing with them.

On one laptop, it takes less than 5 seconds to pull-up the keyboard without disconnecting anything, and I use the pressurized air to "blow-out" the exposed parts of the mobo. It's often fairly dusty.

Those procs may not get all the dust, but doing this regularly likely keeps massive amounts of dust and other gunk from building up to critical over-heating levels.

Caution: while I've never knowingly damaged a fan or mobo doing this, others have told me anecdotally when one "free-rotates" (by using compressed air) some computer DC fans there is a chance of damaging the drive circuits on the mobo or the electronics (Hall-effect sensors, etc) embedded inside the small DC fans used in most computers.

On a test bench I've stress tested fans and drivers using a can of "air" (from both sides to get forward and reverse rotation). I tested several different manufacturer's micro-cooling fans (connected to a driver chip circuit-with power off) to about 400+/- RPM (stroboscopically determined) multiple times for a few seconds at a time each time. There was no observable damage and they ran fine afterwards. But perhaps like ESD, these test outcomes may have been a matter of sheer luck or latent damage that just hasn't presented symptoms as yet. I figured I never got the fans even close to 400 RPM while cleaning the laptop vents using the short-burst technique described earlier.

Anyone know the risks of fan or driver circuit damage for sure?

Also, when on bed/couch/floor I try to always use my laptops on a flat plastic TV dinner tray...to avoid sucking in dust and fiber from the blankets, etc. There are also commercially available trays made just for this purpose, and they're padded on the bottom for comfort.


edit: minor clarification

Ecosse Apr 15, 2009, 01:58pm EDT Reply - Quote - Report Abuse
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Edited: Apr 15, 2009, 02:00pm EDT

 
>> Re: Laptop fan always on and really loud
john albrich said:
It was traced to a defective nvidia video chip design. So if your laptop uses nvidia chipset, you may have this problem.


Welcome back John,

Interesting you state this as I bought a new Acer 8920G (NVIDIA GeForce 9500M GS 512MB ) last year and an update screwed with the Blu-Ray drive - this was sorted by Acer but also they replaced the fan too?? :~

My fan whirs away at boot but slows right down when surfing and the likes - only DVD/Blu-Rays push it to cause a draft!

Ecosse

Specs here > > > > > http://tinyurl.com/ecosse08
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V. J. Savage Apr 15, 2009, 09:58pm EDT Reply - Quote - Report Abuse
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>> Re: Laptop fan is loud and emits burnt smell
This is good additional information, everyone. Now I can try some other approaches. I knew something was wrong when the repaired laptop came back still emitting somewhat of a burnt smell and then I noticed the other, newer, smaller laptop also emitted a mild burnt smell. So maybe there is a bad part in both of them.

I'll try the vacuuming to pull out any lint or debris on the newer laptop, which I haven't sent in yet (my extended warranty runs out at the end of the year). I will also call Sony and discuss whether there was a parts issue here, with either of these models. I wish more laptops had the vents in back like some Apple notebooks so as to avoid breathing these emissions. I have three Sony Vaio notebooks in various models and they run great otherwise. I have never crashed or had any glitches I couldn't resolve easily on my own. Knock on wood, but I just want to make sure I don't dissuade anyone from an otherwise great computer.

Alan Cooper Jan 20, 2010, 04:27pm EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
I take my family laptops to work every so often and give them a good blast of the compressed airline. Never damaged one yet and gets a good cloud of dust out. I was told that vacuum cleaners are not such a good idea due to static discharges, and for some reason vacuuming doesn't seem to be as effective for cleaning as blowing is.

micro Jan 20, 2010, 05:43pm EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
Terrri
Although you have already sent off the laptop for repair, i didnt see anything about when the fan starts making too much noise.
Does it start when the computer is booting, or when it is booted, or after 10 min?

If it does it while booting i would think it is a bios setting or a chip problem.
If it starts after the pc has been running for a little while,it is definitely a heat problem. (poor thermal paste or loose cooling heat sink.

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John Fradley Jan 22, 2010, 07:20pm EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
I cleaned the fan vent on the bottom with a tooth brush and made much more quiet

leo rodion Apr 16, 2010, 09:50pm EDT Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
can u help me plss, i have same problem with computer fan on, but i try to do as u instructed someone here by goin ctrl+alt+del, i saw prosseso more than 10.000hog, some are 34.000hog , so i right click on them ( set piority) instead of NORMAL i put it LOW.

and the fan come down as normal . i just wanted to know if i did the right thing?
thanks

Basco Pasco Dec 31, 2010, 01:20pm EST Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
micro said:
Terrri
Although you have already sent off the laptop for repair, i didnt see anything about when the fan starts making too much noise.
Does it start when the computer is booting, or when it is booted, or after 10 min?

If it does it while booting i would think it is a bios setting or a chip problem.
If it starts after the pc has been running for a little while,it is definitely a heat problem. (poor thermal paste or loose cooling heat sink.


My Laptop fans are running while booting and they won't stop at all. I think it's a chip problem but which chip it could be? My laptop is D810 Dell.

Joseph Tague Oct 31, 2011, 05:15pm EDT Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
I dont know what you mean by "post back" ....... I had multiple Google Chrome's open then closed down to 2 and task manager showed that i had 7 Chrome exe process running, some at 70,000 and 80,000 k .....also a Skype process running at 24,000k and was not even using it. Can i close these processes safely. Why are they all running??

Chris DeSimone Nov 01, 2013, 02:11am EDT Reply - Quote - Report Abuse
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>> Re: Laptop fan always on and really loud
what do you mean by post back


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