Fan won't turn off when lid shut? Will increasing fan spin decrease laptop battery life?

Forums › Laptops and mobile computers › Fan won't turn off when lid shut? Will increasing fan spin decrease laptop battery life?

alexanderu

71 posts

Master Geek

#143837 29-Apr-2014 09:48

So basically I had to take my computer to this IT guy to get it fixed because the Graphics Card burned up or something. (I can't remember).

He fixed it, and increased the fan spin so it wouldn't overheat. Wouldn't this decrease the life of the laptop because the fan is constantly spinning faster?

Also, when I close the lid, the screen turns off and goes to sleep, but the fan still runs? I have checked power settings on CP and it says "Upon lid shutting, computer goes to sleep". Why won't the fan go to sleep also?

Cheers

sampler

444 posts

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#1033013 29-Apr-2014 09:55

Whats the make and model of laptop ?

Its possible to have fans set in some laptops spin for x amount of time after going to sleep, however its not normal at all. Its possible the "It guy" you took it too has either put in an incorrect generic part or had hardwired the power for the fan to some other point in the laptop, but that would be a little extreme.

Try downloading speed fan (http://www.almico.com/speedfan.php) and see if you can confirm any sensors showing the fan moving at full speed for long periods of time.

Its a start .. hope the above helps.

Cheers

Lee

Coil

6614 posts

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#1033014 29-Apr-2014 09:57

If the fan draws more power. yes it will decrease battery life.
That is strange why it doesnt shut off. I would suspect they have routed it directly to a power source? When a laptop goes to sleep it may still have a fan running if its hot. My one does that.

alexanderu

71 posts

Master Geek

#1033038 29-Apr-2014 10:37

sampler: Whats the make and model of laptop ?

Its possible to have fans set in some laptops spin for x amount of time after going to sleep, however its not normal at all. Its possible the "It guy" you took it too has either put in an incorrect generic part or had hardwired the power for the fan to some other point in the laptop, but that would be a little extreme.

Try downloading speed fan (http://www.almico.com/speedfan.php) and see if you can confirm any sensors showing the fan moving at full speed for long periods of time.

Its a start .. hope the above helps.

Cheers

Lee

Hi Lee,
Do I need to post any readings here?

Cheers

gzt

17003 posts

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Lifetime subscriber

#1033059 29-Apr-2014 10:47

There are usually bios settings for fan action. Your guy has probably changed some.

I suggest taking it back and explain to him what the shutdown problem is.

He will probably tweak the settings a bit so it does not occur, and probably for free.

Batman

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#1033061 29-Apr-2014 10:48

The computer is either not sleeping or it's taking a long time to sleep. That's why.

alexanderu

71 posts

Master Geek

#1033062 29-Apr-2014 10:49

Is it possible to modify them myself? A simple setting change?

alexanderu

71 posts

Master Geek

#1033064 29-Apr-2014 10:50

joker97: The computer is either not sleeping or it's taking a long time to sleep. That's why.

Thanks, if the computer is not sleeping how can i fix it?

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gzt

17003 posts

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#1033070 29-Apr-2014 10:53

TimA: When a laptop goes to sleep it may still have a fan running if its hot. My one does that.

As you know, that's a good thing : ).

@Alexanderu, does your fan turn off after some period of time with the lid closed or does it run forever?

alexanderu

71 posts

Master Geek

#1033080 29-Apr-2014 10:56

I think it just continues running.

gzt

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#1033083 29-Apr-2014 10:58

Maybe do some test giving a long period of time like an hour or two so you can know for sure. That should be more than enough.

alexanderu

71 posts

Master Geek

#1033183 29-Apr-2014 15:03

gzt: Maybe do some test giving a long period of time like an hour or two so you can know for sure. That should be more than enough.

It just keeps running. Is it a bios setting?

gzt

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#1033282 29-Apr-2014 17:40

alexanderu:
gzt: Maybe do some test giving a long period of time like an hour or two so you can know for sure. That should be more than enough.

It just keeps running. Is it a bios setting?

The answer might be complex. Any chance you can take it back to the guy that made the change and tell him the issue? I imagine he will probably resolve it for free.

gzt

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#1033285 29-Apr-2014 17:42

If not, post the exact make and model of your laptop. The problem is that stuffing around with the settings might or might not get to the bottom of it, depending on the complexity of what your guy was trying to achieve.