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PWM Mod for Gentle Typhoon

post #1 of 8
Thread Starter 
Hey Guys, I know about the PWM Mod for the AP-29 and 30's. But is the same mod possible for the AP-15 or the AP-45's?

Thanks
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post #2 of 8
Unfortunately no. Even using a sunbeam rheosmart to convert pwm to analog voltage control doesn't seem to work right. Have heard using an aquareo fan controller works ok though. You might try using your motherboard header as well if they can regulate voltage relative to cpu temp through bios. One AP15 is only 1 watt so you could likely control a few fans per channel. Speedfan and your MB headers regulating via voltage may work as well.

No fourth pin on the circuit board of the ap15 / 45 models though, they are 3 pin only.
    
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post #3 of 8
Thread Starter 
The problem I'm running into is that I would like to have either the bios control my fans, or a piece of software. I don't want to have to manually adjust my fans all the time. I saw the Corsair Link but it seems to have a lot of problems. I have an ASUS motherboard so there's Fan Xpert 2.

But then I run into the issue of not wanting to run too many fans off of my motherboard headers. When I complete my water cooling setup I will have roughly 16 fans.

I'm not sure what other options are out there if I stick to the GT's.

https://www.asus.com/Motherboards/P8Z77V_PRO/
Edited by ExpertTrigger - 5/30/13 at 1:38pm
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post #4 of 8
Simple solution:

Hack the fan connector so the Power and ground and routed into a molex connector (cut the wires and splice) that can handle higher current, and then have the tach pin from one fan go to the mobo header, and the PWM signal from the mobo header split out to all your fans. Trivial if you use http://raspberrypi.stackexchange.com/questions/3275/female-breadboard-jumper-cables to attach to the mobo header.
Edited by dr/owned - 5/30/13 at 1:55pm
post #5 of 8
Thread Starter 
Quote:
Originally Posted by dr/owned View Post

Simple solution:

Hack the fan connector so the Power and ground and routed into a molex connector (cut the wires and splice) that can handle higher current, and then have the tach pin from one fan go to the mobo header, and the PWM signal from the mobo header split out to all your fans. Trivial if you use http://raspberrypi.stackexchange.com/questions/3275/female-breadboard-jumper-cables to attach to the mobo header.

I think I might be misunderstanding you. The fans are voltage controlled and wouldn't accept a PWM signal.

What your talking about is something like this I believe:

Link to Splitter
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post #6 of 8
Oh ok so you're trying to hack a 3 pin fan to act like a 4 pin. Why not put a mosfet in line with the 12V power going to the fan and attach the gate to the PWM pin off your mobo?

(This seems to be how PWM fans work normally: http://www.analog.com/library/analogDialogue/archives/38-02/Fan_Speed_02.gif)
post #7 of 8
Triple post.
post #8 of 8
Double post.
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