P4C800 Q-fan not working ???

[Hans Harbeck]

If I enable the Q-fan option the fan simply stops!
It is of no importance if I choose 11/16 or 14/16, it stops.
I did not wait to see if it cuts in at high temperature of the P4.
The fan is not with internal regulating, it is a Thermaltake TR2.
I want a quite PC so what has to be done to get this option to work???
Regards Hans, Denmark

 

[KB]

Has it got a speed control?
fans with speed controls are not the best to use with Q-Fan.
The idea of a speed contol is that you set it to the speed depending on how
hot your cpu gets.
Better cooling at faster speeds, slower speeds, less noise, less cooling.
Q-Fan is fighting against the fans speed control.
Also if the fan is set to around 1200rpm then Q-Fan goes nuts.
A fan that runs at over 4500rpm(without speed control)is better as Q-Fan can
reduce speed when cpu temp is lower and should get the speed back up when
hotter.

 

[Darkfalz]

Has it got a speed control?
fans with speed controls are not the best to use with Q-Fan.
The idea of a speed contol is that you set it to the speed depending on how
hot your cpu gets.
Better cooling at faster speeds, slower speeds, less noise, less cooling.
Q-Fan is fighting against the fans speed control.
Also if the fan is set to around 1200rpm then Q-Fan goes nuts.
A fan that runs at over 4500rpm(without speed control)is better as Q-Fan can
reduce speed when cpu temp is lower and should get the speed back up when
hotter.

Yes, Q-Fan is for retail fans which are way too agressive with trying to
cool down the CPU. That spin at 4500 to 5500 rpms constantly because on a
hot day, the temp in your case is not going to go under 40 C (a good P4
chipset like on P4P800 etc. is going to generate a lot of heat by itself).

 

[Hans Harbeck]

Yes, Q-Fan is for retail fans which are way too agressive with trying to
cool down the CPU. That spin at 4500 to 5500 rpms constantly because on a
hot day, the temp in your case is not going to go under 40 C (a good P4
chipset like on P4P800 etc. is going to generate a lot of heat by itself).

The CPU fan does not have a speedcontrol.
What I not understand is the fan is standaing still when i enable
Q-fan. This cannot be the way this is intended to work.
Lots of people report this problem.
I still have not got the solution although you say the feature is only
working well on hi rew fans.
My fan is a low noise fan and only running 2600rpm at 12V.
Is this the reason why it stops fully???

I have now disabled the chassis fan and the noise is resonable low
now, but still the q-fan could make it even quiter.....

 

[Noozer]

The CPU fan does not have a speedcontrol.

What I not understand is the fan is standaing still when i enable
Q-fan. This cannot be the way this is intended to work.
Lots of people report this problem.
I still have not got the solution although you say the feature is only
working well on hi rew fans.
My fan is a low noise fan and only running 2600rpm at 12V.
Is this the reason why it stops fully???

I have now disabled the chassis fan and the noise is resonable low
now, but still the q-fan could make it even quiter.....

Why would you put a big noisy fan into the case in the first place? These
are high(er) current fans that don't like having the power turned down. If a
12v fan only works at 12v you have nothing to complain about.

 

[ntl: Victim]

The CPU fan does not have a speedcontrol.
What I not understand is the fan is standaing still when i enable
Q-fan. This cannot be the way this is intended to work.
Lots of people report this problem.
I still have not got the solution although you say the feature is only
working well on hi rew fans.
My fan is a low noise fan and only running 2600rpm at 12V.
Is this the reason why it stops fully???

I have now disabled the chassis fan and the noise is resonable low
now, but still the q-fan could make it even quiter.....

FYI If you're using the standard fan that comes with your Retail Pentium 4
Processor then YES it does have inbuilt speed control....