Re: Intel DP35DP motherboard, no fan speed control?

Franc Zabkar <fzabkar@xxxxxxxxxxxxxxxxx> wrote:

On Fri, 09 May 2008 06:08:53 GMT, John Doe
<jdoe@xxxxxxxxxxxxxxxxxx> put finger to keyboard

my voice to the microphone

The motherboard manual says the BIOS should have options for fan
speed control but I don't see them.

I think this behaviour may be normal.

If it's normal, then they need to update the owner's manual.

And enable the QST without having to do a BIOS maintenance startup.

I think mine has something to do with the fact I bought an open box
product and maybe that the DP35DP is problematic (leading to greater
availability of open box products). I'm not whining though, unless
something else comes up, it's already been resolved. I really don't
mind doing a little electrical work to make the fan run normally.

Thanks.

http://www.intel.com/cd/channel/reseller/asmo-na/eng/299984.htm

"Intel has recently developed a new revolutionary motherboard
based fan speed control included with Intel 965 chipset (and
newer) based motherboards called Intel® QuietSystem Technology
(Intel® QST). This new technology uses a PID controller that can
measure the rate of change of the processor temperature, thus
predicting when the processor will reach its maximum temperature.
If implemented correctly by the motherboard manufacturer, the
control algorithm will operate the processor fan at minimum speed
under most operating conditions. Since Intel® QST can predict when
the processor will reach its maximum temperature,

Like when it's approaching its maximum temperature.

it will delay increasing the fan speed until just the right moment
in order to keep the processor from exceeding its maximum
temperature."

Like a few degrees below its maximum temperature.

.

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