Pair Water pump header to sensor on Asus mobo?

[pjneder]

Hi there. New to FanControl but loving it as a solution. I have an Asus X399 mobo with multiple fan headers and a water pump/AIO header. My D5 water pump has a 2 wire connector for PWM and speed feedback. Fan control finds the header and I can manually control the speed. There is no feedback of the speed and it always sits with "pair speed sensor." Using AiSuite (junk) the speed is known so I know at some level the feedback pin works. I have BIOS configured for PWM on the water pump header.

Suggestions on how to configure so pump speed can be included in automatic curves?

[Rem0o]

The automatic pairing has its flaws. If the control works and the RPM does change, then ignore the automatic pairing, and use the manual pairing option for the RPM sensor, then assign any curve you like to the control.

[pjneder]

Thank you for reply Remi. I think I left out one part of the problem. I don't see a sensor with speed information to pair it to:

There is no other "fan" showing RPM info.

Maybe I am being dumb here. I appreciate the help.

[pjneder]

For the record, I have not tried the w_pump on a different header like CPU_OPT or similar. Maybe that is the easiest test and would solve my issues. I know the w_pump header can show RPM but maybe it is weird on this board.

[Rem0o]

RPM pairing isn't required for the control to work. You can operate without a speed sensor. It's just you will be going "blind".

[pjneder]

Remi and anyone who finds this thread. I figured it out for my board. Probably basic RTFM somewhere that I missed.

• I moved the D5 pump speed and sensor connector to a CHASSIS_x header on the mobo.
• I checked in BIOS that everything was set to PWM but wait there is the prroblem!

On Asus mobo with QFan control, when you set PWM you are enabling QFan in the BIOS (or after boot AiSuite) to mess with the speeds!

• The correct config is the set all of the fan headers, w_pump, etc to Disabled so QFan will leave them alone! It will boot up like a tornado but once FanControl is running it will put them on the proper curve.

Now I have a nice quite pump running ~130l/h and quiet fans until I start pounding on it.

[pjneder]

P.S. I will likely move the D5 connector back to the W_PUMP+ header for the sheer purpose of testing it out and proving to myself that really W_PUMP is just another fan header with different label.

P.P.S. Since when did Asus or any mobo manufacturer think you could run real pumps off a tiny mobo header?!? Why even have V+ on there, should always just be PWM & speed pins...