Why is nothing plugged into the AIO Pump pins on my mobo?

donmclarenson

Microcenter recently assembled my PC about six weeks ago. I've been experimenting with changing the fan speeds via the LConnect 3 software for my Lian Li Galahad ii Trinity performance AIO cooler. I noticed on the motherboard there is spot for the AIO plug but nothing is plugged into it. I have no control over the fan speeds and the software isn't even detecting I have fans. Should a plug be going from the AIO to the motherboard via the AIO Pump pins, or is it controlled another way? Here are my specs

Core i9-13900K

Asus Geforce RTX 4090

Tuf Gaming Asus Z790 plus wifi

32 gb ram 6000 mhz

Lian Li Galahad ii Trinity Performance 360 (AIO cooler)

Seasonic Vertex GX-1000W

PowerSpec_MikeW

@donmclarenson

Chances are the AIO is not connected to the board at all. This AIO has a PWM connector, but it also has direct power to the PSU via SATA. The AIO header is typically set to run full speed, you don't want to throttle the pump. Connecting it would just give you the RPM, but I believe you can pull this via USB on this cooler. Now the radiator fans should be on the CPU fan header, and you should be able to control those through ASUS Armoury Crate.

The LConnect 3 needs the USB cable connected to the 2.0 header to be able to gather any information. Check that, my preference would be to bypass it altogether. Radiator fans to CPU_FAN, pump PSU and AIO_Header. ARGB to the board, just use Armoury Crate to control everything.

donmclarenson

When you say the 2.0 header what exactly does that refer to? I'll check that with Armoury crate. Thanks for your explanation. Much appreciated.

PowerSpec_MikeW

@donmclarenson

The USB 2.0 header on the board. Should be on the bottom of the motherboard. The cooler has a USB 2.0 cable that connects there and that's where the LConnect 3 software gets its data.

donmclarenson

Got it. Thanks a lot.

Vaganza

Fan control on the Trinity is through the USB port, do you have L-Connect 3 installed?