Question Laptop fan always running high

[TheUltimateNoob123]

Recently my laptop fan has started constantly running close to full speed even when the cpu is at idle. I opened it up and cleared any dust even though there wasn't much and the fan still runs high. I checked intel extreme tuning and the temps aren't that high (about 40c at idle) so i'm not sure why the fan is at max. Do I just need to replace the fan?

 

[jay32267]

The fan won't run high because there is something wrong with it.....so I really don't think it's the fan. In other words.....for the fan to go fast.....the PC needs to tell the fan to go fast.

I would poke around the BIOS and see what's available there as far as fan settings.

If that didn't pan out.....I would reset the BIOS.....and while I was at it....I would replace the CMOS battery.

 

[Deleted member 14196]

what is your power profile set to? Do you remember changing anything in the BIOS or the system? If so, what were those changes? also please provide your complete PC specs

CPU
GPU
MOBO
RAM (type and how many)
PSU

 

[Fix_that_Glitch]

How do you know that your fan is running fast? BY speed sensor or by noise level? Is it always fast or just in the beginning when you start up your laptop? And what is your laptop?Also you can try this fan controller see if it helps you with fan speed. http://www.almico.com/speedfan.php

 

[tennis2]

Are there any programs from the laptop manufacturer running that's overruling Windows' power profile stuff? I've had this problem with Asus software cranking the fan high.