Remove the cover of my MacBook Pro, I saw a black residue under places of my Fans. What is it?

I just removed the cover of my 17 "mid 2010 MacBook Pro to replace the hard drive!  I see that black dust has settled under the two locations of cooling fans, on the cover.

It seems to be a micro-fine DUST, color dark Siver.

  1. Is it debri met fans?
  2. Can I use a Microfiber cloth to remove safely? and
  3. How it is there?

Please check, as I don't know if it's to worry about.

Is it debri met fans?

Yes

Can I use a Microfiber cloth to remove safely?

For text detailed and video instructions on how to clean the fans, visit You Tube and iFixit tutorial.

  • How it is there?

    Dirt can also get inside a computer because it has vents.  Fans can also attract the dust bunnies inside the computer where most settle on fans.  To answer your question - air and the environment around your computer.

Tags: Notebooks

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