I have a Asus P4C800-E Deluxe with a P4 Prescott 2.8E.
I am using the stock Intel H/F.
The CPU fan runs anywhere from 2500 to 5000 RPM, depending on how hard the
system is working and how hot the CPU is.
I have Asus Q-Fan disabled in the bios and still the fan varies its speed.
What is controlling the CPU fan speed?
Thanks
Ken

"Ken'" <(E-Mail Removed)> wrote in message
news:yP2dnQU4qtk3k_zeRVn-(E-Mail Removed)...
>I have a Asus P4C800-E Deluxe with a P4 Prescott 2.8E.
> I am using the stock Intel H/F.
> The CPU fan runs anywhere from 2500 to 5000 RPM, depending on how hard the
> system is working and how hot the CPU is.
> I have Asus Q-Fan disabled in the bios and still the fan varies its speed.
> What is controlling the CPU fan speed?
> Thanks
> Ken

I'm not certain but it might be the same as my P4-640 (3.2)--the fan
heatsink has a sensor that's used if you have a 3-wire connector. If it has
4, then it's probly the internal cpu sensor doing the control.

Ken' wrote:
> I have a Asus P4C800-E Deluxe with a P4 Prescott 2.8E.
> I am using the stock Intel H/F.
> The CPU fan runs anywhere from 2500 to 5000 RPM, depending on how hard the
> system is working and how hot the CPU is.
> I have Asus Q-Fan disabled in the bios and still the fan varies its speed.
> What is controlling the CPU fan speed?
> Thanks
> Ken
>
>

The Intel fans have thermal fan speed control built in. (Same with the
AMD stock fans.)

--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from (E-Mail Removed)
Home Page: http://www.roberthancock.com/

"Robert Hancock" <(E-Mail Removed)> wrote in message
news:lCf8f.324258$1i.184773@pd7tw2no...
> Ken' wrote:
>> I have a Asus P4C800-E Deluxe with a P4 Prescott 2.8E.
>> I am using the stock Intel H/F.
>> The CPU fan runs anywhere from 2500 to 5000 RPM, depending on how hard
>> the system is working and how hot the CPU is.
>> I have Asus Q-Fan disabled in the bios and still the fan varies its
>> speed.
>> What is controlling the CPU fan speed?
>> Thanks
>> Ken
>
> The Intel fans have thermal fan speed control built in. (Same with the AMD
> stock fans.)
>
> --
> Robert Hancock Saskatoon, SK, Canada
> To email, remove "nospam" from (E-Mail Removed)
> Home Page: http://www.roberthancock.com/


Robert


Is the any way to over ride it?????
Thanks for the help.
Ken

The best way to 'over ride' it would be to get a new hsf that doesn't have a
thermal fan speed controller.

"Ken'" <(E-Mail Removed)> wrote in message
news:U_GdnYIoAb0DEPzeRVn-(E-Mail Removed)...
>
> "Robert Hancock" <(E-Mail Removed)> wrote in message
> news:lCf8f.324258$1i.184773@pd7tw2no...
>> Ken' wrote:
>>> I have a Asus P4C800-E Deluxe with a P4 Prescott 2.8E.
>>> I am using the stock Intel H/F.
>>> The CPU fan runs anywhere from 2500 to 5000 RPM, depending on how hard
>>> the system is working and how hot the CPU is.
>>> I have Asus Q-Fan disabled in the bios and still the fan varies its
>>> speed.
>>> What is controlling the CPU fan speed?
>>> Thanks
>>> Ken
>>
>> The Intel fans have thermal fan speed control built in. (Same with the
>> AMD
>> stock fans.)
>>
>> --
>> Robert Hancock Saskatoon, SK, Canada
>> To email, remove "nospam" from (E-Mail Removed)
>> Home Page: http://www.roberthancock.com/
>
>
> Robert
>
>
> Is the any way to over ride it?????
> Thanks for the help.
> Ken
>
>
>

Ken' wrote:
> Is the any way to over ride it?????

Nope..

--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from (E-Mail Removed)
Home Page: http://www.roberthancock.com/