Fujitsu LH532 Fan Cleaning

Let's reduce e-waste!

Problem

Two months ago, the Win* 10 installed on my old laptop crashed with blue screen on startup. Two weeks ago, I created a Xubuntu 18.04 LTS 64-bit Live USB and set up the dualboot. However, the fan was still giving out consideralbe noise and heat under Xubuntu 18.04 (installed in /dev/sda7).

Many end users’ reaction

They’ll simply buy a new PC. This had given rise to industrial parks in Guiyu (貴嶼), one of the world’s largest e-waste village. I’m so shocked to see that Hong Kong appears on the top of the linked article.

My own way

是以聖人常善救人,故無棄人;常善救物,故無棄物。是謂襲明。故善人者,不善人之師;不善人者,善人之資。不貴其師,不愛其資,雖智大迷,是謂要妙。

《老子》襲明章第二十七

Open the lid and clean the fan. Here’s a list of YouTube videos I watched before actually grabbing my screwdriver.

  1. Ming’s demo
  2. Geekerwan’s video

I opened the lid and cleaned its inner side. The amount of dust on the fan blades was as expected.

dusty fan

However, I was shocked by the dust which had been blocking the exhaust. This had caused the heat to build up inside the case.

exit blocked

I had seriously thought about replacing the thermal paste due to Win* failure. However, having read Ofey’s article, I’ve decided to leave it untouched.

warning

Result

After two hours of cleaning, my Fujitsu Lifebook now runs Xubuntu 18.04 quieter and cooler.

after cleaning

Safety precautions and remarks

A small amount of electrostatic charges from the door knob or a blanket can put a tiny electronic component into intensive care. To avoid this, grounding the working place is recommneded. Nonetheless, I didn’t use the following tools since I couldn’t bought them.

  • an antistatic mat
  • an antistatic wrist strap (use a wired one)

Use a precision screwdriver set for disassembling your computers since screws of difference types and sizes are found in a computer.

You may see original photos (with higher resolution licensed under CC-BY) in my Flickr album.


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