Off topic. RE: Core temp. Dear Felix...

[Karl Auer]

> On 03/01/13 12:50, compdoc wrote:
> > So please, explain how increased airflow is not the correct solution if a
> > person desires a cooler temperature?

And Basil wrote:
> You CANNOT get the temperature of the cpu or the mobo (or the inside of 
> the computer case) below the ambient temperature UNLESS you are using 
> refrigerated (or similar) cooling system.

By way of explanation, the ambient temperature is the temperature around
the machine - the temperature in the room where your computer is
sitting. The CPU heats the air *immediately* around it, mostly by
conduction (direct contact). Unless that heated air is moved away, it
will just get hotter and hotter until it is the same temperature as the
CPU. Radiation will get rid of some of the heat, and convection will
move some of the hot air up and away from the CPU, but they are not
generally fast enough processes.

A fan works by forcing that heated air away from the CPU, continuously
replacing it with new air. Where does the new air come from? The
surrounding environment. This means that the air that is replacing the
heated air is at the ambient temperature. If the air around the CPU is
already at the ambient temperature, replacing it with more air at the
same temperature has no cooling effect. Thus simple airflow cannot cool
a CPU below the ambient temperature.

Regards, K.

-- 
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Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://www.biplane.com.au/blog

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