From: Farley Flud <ff@linux.rocks>
Subject: Re: Hard Drive Failure Reprise
Newsgroups: comp.os.linux.advocacy
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Date: Sun, 08 Dec 2024 21:28:51 +0000
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On Sun, 8 Dec 2024 14:17:52 -0600, Physfitfreak wrote:

> On 12/8/24 12:07 PM, Farley Flud wrote:
>> However, upon close inspection, I noticed huge amounts of fine dust
>> particles that were clogging the cooling vanes of the CPU heat sink.
>> Using a brush I scrubbed away all the fine dust and ever since I have
>> not had a recurrence of the problem.
> 
> 
> That's number one in ruining my drives and generally sensitive 
> electronic stuff. Here in this area they're almost always pollen.
> 

This is definitely a physics problem.

I have a very powerful fan blowing air through those cooling vanes
and they will eventually become totally clogged.  Considering the
strong airflow, Why is this happening?

I posted this question to sci.physics.

My theory, which I believe to correct, is that the stationary
boundary layer that always develops when flowing air contacts
a surface is responsible.  The dust particles can easily settle
in the stagnant layer and then more will eventually settle on
the layer created above, etc.

Other posters claimed that static electrical charge is responsible,
which I find to be nonsense as the cooling vanes are grounded.



-- 
Systemd: solving all the problems that you never knew you had.