Re: Kernel 6.13 Changes

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.