View Full Version : CPU Fan Mobo Header pass through?
Calmuser
Jan 2nd, 2009, 06:41 PM
Hi I am wondering if anyone knows where to get one of these, I can't seem to find them anywhere.
I am wanting to the fan speed on my cpu fan with my fan controller, but for my comp to boot something needs to be plugged into the cpu fan header on my mobo.
So is there like a device that would let my plug it into my mobo header and another plug coming out I can plug into my fan speed controller?
terrybear
Jan 2nd, 2009, 07:23 PM
Do you mean like as in a 3 pin to 4 pin molex conector or ??
willy
Jan 2nd, 2009, 07:28 PM
A cheap way is to plug in another fan to 'fool' the mobo monitoring ...
terrybear
Jan 2nd, 2009, 07:35 PM
A cheap way is to plug in another fan to 'fool' the mobo monitoring ...
that too, sorry read the post a lil too fast :D
Calmuser
Jan 2nd, 2009, 07:40 PM
yeah but then that fan would run too fast as well.
the fan wants to run at full ear bleeding speeds 24/7. I set it lower and it won't lower. so I want use my fan controller to control the speeds.
I know there is a plug like that, I had one before, can't find them anywhere anymore.
Amourek
Jan 2nd, 2009, 08:15 PM
There should be an option in the BIOS that will make it ignore the CPU fan header.
Calmuser
Jan 2nd, 2009, 09:21 PM
There should be an option in the BIOS that will make it ignore the CPU fan header.
not that I noticed.... my mobo is a Asus P5Q PRO
willy
Jan 2nd, 2009, 09:28 PM
You can 'move' the signaling pin from the CPU fan from the original header plug to another 3-pin header plug and in this case, the signaling pin (yellow or blue) will be the only wire in that plug. Then, plug that to the mobo CPU fan header and the original fan header plug (without the signaling pin) will go to your fan controller.
It should look like this ...
http://www.hardwarezone.com/img/data/articles/2004/1192/10-fan_header_done.jpg