Re: Do you think case volume affects cooling?


GUEST wrote:
Some of you may remember my earlier discussions on case cooling and
CPU
temps. My concern was my Athlon 2700+ system in which the mobo
sensor
(which I will refer to as case temp) indicated about 35C and the
CPU temp
about 47C at idle (with a good heatsink) in a 22C room. This case
is tall
and narrow, has no side vents, one intake and one exhaust fan and a
volume
of amout 1848 cubic inches.

I recently moved the CPU to another system: very similar (same
vendor,
layout and chipset) mobo, same video, same drives. This system has
a
shorter, wider (and deeper) case with a total volume of 2061 cu.
in. It has
only a single exhaust fan but has vents on the side panel above the
CPU and
the PCI slots. At the same ambient temp, the Athlon 2700+ with
stock AMD
heatsink/fan runs 35C with 26C case temp which is line with what
I'd expect
and like to see.

So my question is: is it the larger volume, the side panel vents
or the
combination that results in the dramatic reduction in both CPU and
case
temps?

One other confusing fact, even removing the side panel of the
smaller
(hotter) case drops the CPU temp only about 5C and case temp (as
reported by
the mobo sensor) only 1C or so. So maybe there's something else
that makes
this system run hotter.

I agree, great description. I never
thought about it that way, but now I'm going to open up my case and
see if I can "balance these two needs"

.

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