Speedfan, not getting it to work...
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Speedfan, not getting it to work...
This may be a totally newbie question, but here goes...
I have an Asus p4p800 E Deluxe motherboard. According to the info on the speedfan website, it should be supported for fan speed control. I have enabled Qfan in the BIOS, but I thought this was only important for CPU fan control?
Nevertheless, when I turn down the percentages for fan1-3 speeds, nothing happens... What am I doing wrong?
best regards
Knut Inge
I have an Asus p4p800 E Deluxe motherboard. According to the info on the speedfan website, it should be supported for fan speed control. I have enabled Qfan in the BIOS, but I thought this was only important for CPU fan control?
Nevertheless, when I turn down the percentages for fan1-3 speeds, nothing happens... What am I doing wrong?
best regards
Knut Inge
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I switched off Q-fan and now I can regulate the CPU fan, but not the two system fans tapped from the remaining fan headers on the mobo. Also, the monitoring seems to be way off. My Zalman 7000 is slowed down by the fanmate to its minimum, 1200rpm reported in speedfan. When I lower its speed even further in speedfan, it reports 14000rpm!
with regards
Knut Inge
with regards
Knut Inge
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- Location: St Louis (county) Missouri USA
Common problems......only one of your fan headers is wired for speed control, and there is a lower rpm limit the board can detect. Go lower and the read-out is unstable.
Some boards do not have these problems. In your situation there is probably no solution, other than going to a separate fan controller.....
Some boards do not have these problems. In your situation there is probably no solution, other than going to a separate fan controller.....
Seems that you are right
http://forums.anandtech.com/messageview ... y&arctab=y
"..Since then, it has been marvelous. It has been my ASUS P4P800 instead that has fallen short of expectations, since they only implemented full fan-control for the CPU_FAN header despite the potential resources of the Winbond super-IO controller chip on the board..."
So now my other option is using the fanmate for running the Zalman 7000 at a constant low speed, and using that CPU fan header for software-controlling one of the system fans. The other fan? Either disable it, or run it at a constant 5 V. How easy is it to run fans in series? I mean tapping the variable voltage from fan2, and divide it amongst the two system fans. May cause speed readings to fail, but I cant see why it should not work? Id rather have two slow fans than one faster.
Anyways, thanks for the great help, guys
Knut Inge
http://forums.anandtech.com/messageview ... y&arctab=y
"..Since then, it has been marvelous. It has been my ASUS P4P800 instead that has fallen short of expectations, since they only implemented full fan-control for the CPU_FAN header despite the potential resources of the Winbond super-IO controller chip on the board..."
So now my other option is using the fanmate for running the Zalman 7000 at a constant low speed, and using that CPU fan header for software-controlling one of the system fans. The other fan? Either disable it, or run it at a constant 5 V. How easy is it to run fans in series? I mean tapping the variable voltage from fan2, and divide it amongst the two system fans. May cause speed readings to fail, but I cant see why it should not work? Id rather have two slow fans than one faster.
Anyways, thanks for the great help, guys
Knut Inge
BTW, what is a general "sort of optimal" temperature to fan speed formula?
I envision something like:
if (all temps < 40 deg C)
all fans off
else
if (50<CPU_temp<70)
CPU_fan scale linear from (temp-50) to 70
if (system_temp OR HD_temp > 40)
System fan scale linear from (temp-40) to 55
if CPU_temp > 70
all fans at 100%
end
end
(In my system, I would have to have only one fan speed output of course
I envision something like:
if (all temps < 40 deg C)
all fans off
else
if (50<CPU_temp<70)
CPU_fan scale linear from (temp-50) to 70
if (system_temp OR HD_temp > 40)
System fan scale linear from (temp-40) to 55
if CPU_temp > 70
all fans at 100%
end
end
(In my system, I would have to have only one fan speed output of course
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Not exactly. Here's a parallel setup.....MB has a Red(positive) and a black(negative) header. Forget the yellow. Run the red to the fan red, and the black to the fan black. Then run the first fan red to the second fan red, and the first fan black to the second fan black. Both fans are wired parallel, running on 12V.
Here's a series setup......run the MB red to the first fan red. Run the first fan black to the second fan red. Run the second fan black to the MB black. Each fan is wired in series, running at 6V each.
Simple, huh....
Here's a series setup......run the MB red to the first fan red. Run the first fan black to the second fan red. Run the second fan black to the MB black. Each fan is wired in series, running at 6V each.
Simple, huh....
I`m an electronics engineer and I DO know the difference between serial and parallel
I am objecting to you saying that "You can use one MB header to control two fans. That's running in a parallel configuration, not series". That is wrong. One fan header could run two fans in either parallel or series configuration =) Which is better is an open question...
with regards
Knut Inge
I am objecting to you saying that "You can use one MB header to control two fans. That's running in a parallel configuration, not series". That is wrong. One fan header could run two fans in either parallel or series configuration =) Which is better is an open question...
with regards
Knut Inge