And do you follow the technical state of your computer?

 I suggest to look at a few examples of what happens when it all comes down to the commonplace wiping the system case of dust. I'll start with the "EASY" - In this state of repair received approximately 89% of "sick", this is for a seed.

 "MEDIUM":

  "HARD" - Now begins the fun part:

 "HARDCORE" - I do not know which of the two "patients" more impressed "pylyankoy" - this or the previous one:

 "NIGHTMARE"Genuinely surprised by the customer says:- Is it a minute off.Naturally all covered with dust, not even - as some finely dispersed sand, cooling CPU is the graphics card: