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From: Physfitfreak <physfitfreak@gmail.com>
Newsgroups: comp.os.linux.advocacy
Subject: Re: Kernel 6.13 Changes
Date: Sun, 26 Jan 2025 12:43:13 -0600
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On 1/26/25 5:35 AM, Farley Flud wrote:
> On Sat, 25 Jan 2025 14:52:03 -0600, Physfitfreak wrote:
> 
>>
>> It looks like computers are designed to create faster air flow in the
>> proximity of the hot surfaces than the ambient air speed outside and
>> even inside the computer.
>>
> 
> Inside the confines of a closed box there will be much turbulence
> with consequent eddy flows that will create much dead space.  This
> is hard to predict exactly but cooling certainly will be reduced
> by this effect.
> 
> The volume of air flow that I can produce with my external
> fans is at least 20-30x as large as with any box, and with
> some strategically placed baffles the cooling I can achieve
> if far superior.
> 
> There are other advantages to having a no-box layout.
> For example, I very frequently change or move HDDs and
> I can do this very easily and quickly.  I can plug in
> and plug out a BDR/DVD/CD burner when needed rather than
> having it attached all the time.
> 
> There is one minor disadvantage however, and that is possible
> EM interference.  Digital circuits can produce a fair amount
> of RF radiation and this could affect nearby radio receivers.
> This does affect me because I use no such devices but if were
> to have a short-wave receiver it would certainly experience
> a lot of noise when my computer is running (which is nearly
> all the time).
> 
>   
> 
> 
> 


I have at times resorted to leaving one side of the box open and using 
strong fans to cool it, especially in summer. Speed of air flow across 
hot surfaces is the key. The rest of cooling almost goes to waste cause 
it won't get applied to hot areas. So fan must be set at its highest 
speed and this makes a noisy environment. Something is always buzzing 
when at the computer.

I am sure that those who design computer cases and inside little cooling 
fans and ducts for CPU etc aren't doing it well enough. I give it more 
than 99% chance this is the case. They can't do the job to begin with. 
It requires physicists. Even if there's one who can, I'm certain he's 
told not to go to such absurd extra miles for the consumers. Their best 
customers are people like "true American" and "hh" anyway. They'd love 
to see their computers go bad cause it opens yet another opportunity for 
them to blow dollars. They're like women in a shopping center. So nobody 
does the job right about this cooling matter.

Thus, brute forcing it I guess happens sometimes, but as I said, it has 
been too noisy for me, and more exposed to cat urine right when I walk 
off from the computer for some reason.