Member Avatar for sam1

hi everyone,

my laptop has a fan at the bottom, and recently it doesnt stop even for 2 secs,it is so noisy, I dont knw what is wrong with it, I tried to clean the dust but still have the same problem. It is quite annoying.

any ideas how to make it pause for 2 or 3 min?

thanx

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— since the bottom fan is running constantly even after cleaning, this is usually not just dust. As pointed out, stopping the fan is unsafe. was right that software can sometimes change fan behaviour, but software only works when the laptop firmware/chipset expose fan controls.

A practical way to narrow the cause:

  1. Confirm load vs. hardware: check CPU/GPU activity (Task Manager on Windows, Activity Monitor on macOS, top/htop on Linux). Heavy background tasks, antivirus scans or runaway processes will keep the fan on.
  2. Measure temperatures with a hardware monitor utility (tools exist for this). If idle temps are much higher than expected for the model, that points to heat-transfer issues rather than a control problem.
  3. Observe fan behavior before the OS boots (BIOS/UEFI splash or built-in diagnostics). If the fan is full-speed with the machine cold and before Windows/Linux loads, suspect firmware/sensor or a failing fan/tachometer.
  4. Mechanical and thermal fixes: a grinding/wobbly fan usually needs replacement. If temperatures are high despite a healthy fan, the thermal interface (paste) or heatsink contact may be degraded and may need rework.

Short checklist order: check processes → monitor temps → test fan behavior outside the OS → update BIOS/EC firmware if available → mechanical repair or fan replacement. Temporary relief can come from lowering max CPU state in power settings or using an external cooling pad, but these hide root causes.

Cautions: opening a laptop can void warranty and risks static damage. If under warranty, contact the manufacturer. If unsure about disassembly or replacing thermal paste, get professional service.

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Member Avatar for chrisbliss18

Why would you want your fan to stop? If it stopped, your processor would fry.

Member Avatar for sysserv

Obviously you do not want to stop your fan.

Firstly make sure that the fan is free from dust and any blockages.

Then if it is annoying you can use a fan speed control programme.

HOWEVER NOTE: you are best to have the diagnostics programme for your system running so you can check if the fan is running fast enough to keep your system cool.

Fan speed controll programmes are available.

there are various versions available some work with other brands that are not listed

Try


The first one is a generic one see disclaimer at
http://www.almico.com/speedfan.php

The second is a dell/and many others see disclaimaer at http://www.diefer.de/i8kfan/

Not every chipset has a speed control capability, but most of the newer ones do.

So I suspect that speedfan will help.

Regards
Philip Mc Donald

As with all freeware, if you use it and like it it is always nice to go to the relevant programmers website and give a donation if they take them.

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