My computer runs very hot and eventually turns off or freezes – this is one of the most common complaints I have been receiving from my customer for many years.

Why it’s happening? Is there an easy fix for that?

Most likely this problem is heat related. Take a look at the following picture.


Any laptop has a cooling module which includes two parts: the heat sink and cooling fan. When it works, the processor (CPU) heats up and the heat sing heats up too. At some temperature level, the fan kicks in and cools down the heatsink.

The problem starts when the cooling module collects too much dust inside. The dust kills normal airflow inside the cooling module. Eventually, the processor overheats and the laptop turns off unexpectedly or freezes.

This problem can be fixed by cleaning the cooling module.

Cleaning the cooling module.

Some laptops give you an easy access to the heatsink and fan. In laptops like that you can access the cooling module through the bottom cover.

In my example I had to remove the cooling module. Otherwise, I wouldn’t be able to remove the fan and access the heatsink.

In some models you can remove the fan without separating the heatsink from the CPU.

After I removed the fan, I found a thick layer of dust inside. Cleaning it up will fix the overheating problem.

Apply thermal paste on the processor.

You should apply new thermal paste before installing the heat sink back in place.

Remove old thermal paste from the processor and heatsink using alcohol swab.

WARNING: In some models the heatsink also covers the graphics chip. The part of the heatsink which covers the graphics chip might have thermal pad on it instead of regular thermal paste.

Do not replace thermal pad with thermal paste! Do not apply thermal paste on the thermal pad! Just leave thermal pad alone and apply thermal paste only on the processor.

I usually use Shin-Etsu paste which is relatively cheap and performs well.

After applying new paste, install the cooling module back in place. Do not forget to connect the fan cable to the motherboard!

What if the cooling module cannot be removed easily?

In some laptops the cooling module is buried deep inside the case and cannot be easily accessed and removed. In order to remove it you’ll have to disassemble the whole laptop but it’s only for experienced users.

In this case you can use the following technique. It’s not perfect but works very well.

Buy a can of compressed air or use a compressor.
1. Blow air into the fan grill on the bottom.
2. Blow air into the fan grill on the side.
Switch direction a few times until all dust is gone. Most likely this quick cleaning will fix your problem too.

Support this site.

 

87 Comments

Pages: [9] 8 7 6 5 4 3 2 1 » Show All

  1. 87
    Lucian Says:

    hi, i have a problem with my ACER ASPIRE 5733Z laptop while i put the charger on then power leaking from all of the USB port so what to do? plzz help

  2. 86
    cj2600 Says:

    @ hanif,

    my laptop turns on but shuts down immediately after few second, sometimes it stays on for few minutes then turns down. this even happens when the temperature is cold..help me with this problem .

    I would check the DC jack connector. It’s possible the laptop shuts down because it’s not getting any power from the AC adapter and the battery discharged.
    Try moving the AC adapter tip inside the DC jack. Does the battery charging light flash when you move the adapter tip?

  3. 85
    hanif Says:

    my laptop turns on but shuts down immediately after few second, sometimes it stays on for few minutes then turns down. this even happens when the temperature is cold..help me with this problem .

  4. 84
    cj2600 Says:

    @ scientist017,

    just accidentally removed the thermal paste and threw it in dustbin, so i replaced it with modelling clay, my laptop work well enough as before , but , will it harm my laptop ?.

    I wouldn’t use the laptop like that. Buy thermal grease and apply it on the processor.

  5. 83
    scientist017 Says:

    hi guys , just accidentally removed the thermal paste and threw it in dustbin, so i replaced it with modelling clay, my laptop work well enough as before , but , will it harm my laptop ?.

  6. 82
    scientist017 Says:

    my laptop is acer aspire 5738Z model , the thermal paste was dried up and i accidently removed it , so i have used modelling clay as a replacement of thermal grease, will it harm my laptop?

  7. 81
    chetan Says:

    how to reflash the BIOS in hp compaq 6910p laptop plz plz plz tell me plz

  8. 80
    Irshad Siddiqui Says:

    Hello,

    My labtop is HP Mini Intel Atom. It become heated after some time. Its fan sounds with intervals. Can any freind suggest me how to open the cover of laptop to clean the heatsink. Thanks.

  9. 79
    chetan Says:

    my laptop is freezing means when i turn on laptop it run very much slow
    i has hp compaq 6910p
    i remove the fan and access the heatsink. after this i clean the heatsink as well as fan and i alos do the following steps
    1. Blow air into the fan grill on the bottom of the laptop.
    2. Blow air into the grill on the side of the laptop.
    After doing these steps nothing happend. the problem is same
    plz tell me what can i do plz plz plz………….

  10. 78
    basil Says:

    what are the effects of bad BIOS in a laptop

Pages: [9] 8 7 6 5 4 3 2 1 » Show All

Leave a Reply