Mainboard fan power connectors

[Rebulous]

I have a mainboard that has four power/sensor connectors for fans.
One for the CPU fan, two for system fans, and the fourth is for a
north bridge fan. My question is: can the north bridge fan be used
for a system fan? This is probably an obvious answer, but I don't
know enough about the temperature sensors to know for certain.
Thank you.

 

[o-chan]

I have a mainboard that has four power/sensor connectors for fans.
One for the CPU fan, two for system fans, and the fourth is for a
north bridge fan. My question is: can the north bridge fan be used
for a system fan? This is probably an obvious answer, but I don't
know enough about the temperature sensors to know for certain.
Thank you.

What is a "system" fan? Do you mean a case fan?

The northbridge fan is REALLY small. Where else were you going to use
it? Or did you mean you want to add anotehr case fan and plug it into
the northbridge fan connector? I'm not sure that's a good idea. The
case fan won't be used in the same way, and should not be regulated in
the same way.

 

[Michael Hawes]

I have a mainboard that has four power/sensor connectors for fans.
One for the CPU fan, two for system fans, and the fourth is for a
north bridge fan. My question is: can the north bridge fan be used
for a system fan? This is probably an obvious answer, but I don't
know enough about the temperature sensors to know for certain.
Thank you.

Yes, if you do not have a north bridge fan.
Mike.

 

[Rebulous]

What is a "system" fan? Do you mean a case fan?

The northbridge fan is REALLY small. Where else were you going to use
it? Or did you mean you want to add anotehr case fan and plug it into
the northbridge fan connector? I'm not sure that's a good idea. The
case fan won't be used in the same way, and should not be regulated in
the same way.

Yes, a system fan is a case fan. Also, I wasn't clear. My intention
is to use the north bridge fan connector for a case fan, unless there
are issues with doing that, such as the voltage not being the same,
or the temperature sensor operating differently. That is what I'm
not certain of, and the manual doesn't have specifics.

 

[o-chan]

Yes, a system fan is a case fan. Also, I wasn't clear. My intention

is to use the north bridge fan connector for a case fan, unless there
are issues with doing that, such as the voltage not being the same,
or the temperature sensor operating differently. That is what I'm
not certain of, and the manual doesn't have specifics.

In that case, the voltage is the same, but the temp regulator may not do
what you want it to. It will probably speed up the fan when the temp is
higher, but not necessarily at the right times. You could always try it
and see if you are happy with it.

If the 3rd fan you have has a 3-pin connector and you don't know where
else you'd plug it in, you can always get a 3-pin to 4-pin adapter made
for case fans, which will let you plug it into the big 12V connectors on
your PSU.

 

[Overlord]

A case fan is bigger than a little northbridge fan and draws more
current. Asus A7V boards were famous for, among other things,
blowing the fan header if you put too many or too large fans powered
thru the MB. It was also ridiculously easy to do as the spec on
the 3pin MB connectors for current draw was far out of line with
reality. Once that happened you never had the 3pin MB fan power
again, except for CPU fan power. You can most likely do what you're
wanting to do but I'd check on the specs in the manual and not run
the current draw of ALL the MB powered fans too close to spec.

I have a mainboard that has four power/sensor connectors for fans.
One for the CPU fan, two for system fans, and the fourth is for a
north bridge fan. My question is: can the north bridge fan be used
for a system fan? This is probably an obvious answer, but I don't
know enough about the temperature sensors to know for certain.
Thank you.

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