Case Fan not recognized?

[HarUOne]

Hey guys! I've was here a year back and I remembered all your friendliness so I have come to ask a question again once more! I'm not sure if this is the right category/sub-category but here goes...

I've recently acquired a Bgears 140 mm case fan. It's a cheap budget case fan but it moves a decent amount of air.

The only problem I have with it is how incredibly loud it is. Even when it is idle. I feel like it is running at 100% all the time.

I have speedfan and have tried to look up tutorials on how to adjust the speeds, but it doesn't even seem like my motherboard recognizes the fan. ):

The fan is connected to the motherboard via a 3pin to 4pin adapter.
I'm currently using a GIGABYTE GA-870A-UD3 AM3 AMD 870 motherboard.

Can anybody help me with this probem?

 

[rolli59]

3pin fan on 4 pin connector looses the ability to speed control http://www.intel.com/support/motherboards/desktop/sb/cs-012074.htm
A fan controller might solve your issue.

 

[13thmonkey]

if you've connected it to 4 pin molex (like you plug into DVD and old HDD's) then you can't control the speed other than by controlling the voltage.
Something like this:
http://www.microdirect.co.uk/Home/Product/39066
Will allow you to connect it to a lower voltage connection, hence reducing the fan speed.
if you are going to buy a fan controller, then you might want to buy a better fan, scythe kazi are quiet and shift some air.

Which mobo do you have, are there no 3-pin connectors on it?

 

[HarUOne]

Well, I've managed to connect it to a 3 pin directly to the mobo but I still can't seem to be able to control the fan from SpeedFan. I basically put all speeds to 0% and it keeps running. The other fans don't stop either and they're connected to a 3 pin.

I'm guessing I'm doing something wrong on Sppedfan..?

 

[13thmonkey]

you need to go to advanced settings on the configure page of speedfan and change the control type of the fan, i've not got it on this machine so i can't give you more than that.
BUT does your mobo support control on those 3-pin sockets, it might just support reporting of rpms, but notallow control.

 

[HarUOne]

Best answer selected by HaruOne.

 

[Mousemonkey]

This topic has been closed by Mousemonkey