Herbert,

On Sun, 27 Mar 2005 20:23:34 -0500, Herbert Graf wrote:

> I just put together an ATX Athlon 64 system, it had 7 fans. That's
> right, 7 fans. Two fans in the power supply, one fan on the front of the
> case, one fan on the back, one fan on the side, one fan on the NB and
> finally another fan on the GPU. Suffice it to say that is one LOUD
> computer. And even with all that because of the orientation of the DIMMs
> they COOK.

For some reason the tendency recently has been to add more exhaust fans, first on the back below the PSU 
(which is exhausting anyway), then the side and/or the top of the case - presumably because "getting the heat 
out" is the aim.  But still with just one intake fan on the front (occasionally two).  The net result is a 
lowering of air pressure inside the case, which reduces the cooling effect.  (Consider the absolute, having a 
vacuum in the case, to see why lowering the pressure is a Bad Thing!)  Having sufficient air blown into the 
case is vital, and improving or adding to the intake fans would be a good way to go, although the flow has to 
be considered - no point reversing the rear case fan unles you can divert the air downwards, because otherwise 
it will just go straight out through the PSU without doing any good.

Good Luck!


Howard Winter
St.Albans, England


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