Re: Are all Cpu Fan's RETARDED?

45C is perfectly adequate. Here is a quote from a power supply design
book:

"...a fairly common practice is to limit the worst-case silicone device
junction temperatures to 135-150C for "high-reliability" commercial
equipment, 125-135C for convetnional military equipment, and 105C for
ultrareliable military or space equipment."

Badly shaped ducts can greatly impede air flow. Walls should be
smooth, not corrugated

> I dont need screamin fan! 80mm top speed of 1900? anybody? and capable
> of even slower? A zalman .25 on its resistor worked well, except, it doesnt
> calm down for cpu idle bringing it into the 80's F.
> I want a 100 F idle +/- 5 F. If I find this 80mm fan, im gonna get a dozen
> of them! (I've searched previous to this request, to no avail)

Heat pipes can be very effective and should allow even the fastest
processor to be cooled without fans. However the pipe's radiator may
have to cover 1-2 square feet to do this, but this is still smaller
than a water cooled system.

Fan speed regulation by temperature is simple and can be achieved with
ready-made fan controllers (overpriced, often badly designed), a
low-value thermistor in series with one of the fan wires (value in ohms
approximately fan voltage/amp draw), a controller (many designs at
www.cpemma.co.uk), or software (Speedfan).

.

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