Re: iMac G5 cooling and design

Now, why he's concerned about the design of a model that was superseded
in early 2006 is a puzzlement to me.

Superseded? In what way?

Um, by the fact that Apple stopped making them then and replaced them
with the Intel iMacs. You did hear about that, didn't you? Oh, and,
for the record, the Intel processors run far cooler than the G5s.

So they should run cool. But the one I saw in the store, actually all
3 INTEL iMacs, (17", 20" and 24") ran HOT. And they were idling. So
my point stands. Lousy cooling, lousy design, unless you're some
person that gets thrilled on functionless form of course. Then
they're just peachy.

You still don't get the concept of efficient heat transfer. Components
in a computer generate heat - this is undisputed. The whole point of
*any* cooling system is to transfer heat from the components to the air
outside of the case - this is also undisputed. The more heat you
transfer, and the faster you transfer it, the greater the difference in
temperature there is between the hot air coming out of the case and the
ambient air outside the case. You seem to think that, instead, the air
coming out the case should be closer to room temperature, which would
mean the heat isn't being transferred out of the case efficiently and is
instead stuck inside, warming the ambient air and other parts of the
interior (this is actually quite common for the majority of Wintel PCs,
BTW). That's not efficient heat transfer.

If something is being cooled well, the air coming off it is not hot.
Its usually because of the heat sink size. If you put a typical CPU
with a standard size heat sink that heat sink will get hot. Its
usually paired with some cheap, tiny fan, whirring away at high speed
making tons of noise. In a good design, the heat sink is big enough
that it doesn't get hot because the heat is spread over a larger area.
That larger area should be cooled by a large fan (120 mm or larger)
and since its large it doesn't need to rotate as fast to move the same
amount of air. Hence its inaudible or close to the ambient noise of a
typical quiet room. With a proper heat sink, the air coming off that
device will never be hot. So the air coming out of the case will
never be hot. That's good design. My point also stressed that the
heat coming out of the iMac was hot and it wasn't even doing anything
plus the ambient temperature was not high. The computer was just
idling. That's bad design. Style takes paramount importance at
Apple. Its such a shame. Such a waste of an OS. As I said, if they
had opted for a design that was not quite so sleek, (a little deeper
by a couple of inches) they could have had a world of possibilities.
Instead function lost to style - again.
.

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