Question Why is my mobo not detecting my aio and CPU over heating

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Jan 18, 2024
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Hello, I have just built a PC that I thought went well until I tried installing windows. First I went into my bios and realized my CPU temps were pretty high for just being turned in 10 seconds ago (78 degrees) and then I took a look at the fan panel in the Asus prime bios and saw that it's not detecting a aio. And then it just turned off. I thought it was just a bug thought so I tried going through with the windows installation. It turned off again. It did this how many times. After a certain amount of time it just turns off from what I'm assuming is the CPU overheating. I have plugged in the pump 3 pin into the AIO_PUMP on my mobo and the fans on CPU_FAN. nothing and then I tried plugging it into CPU_FAN and CPU_OPT with nothing changing. I know I removed the plastic on my aio because that's the first thing I did when I unboxed it and it wasn't there when I attached the attachments to mount it on a am5 CPU. Yes I put thermal paste
The mobo is a Asus prime x670e pro wifi. The aio is the cooler master m240l v2 RGB. I'm running Lian li fans intake on the rad. I saw in a video that the tubes are supposed to be vibrating when you touch them and it's on and mine doesn't.
 
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From what U see you did the temporary connections test if my #3 above and found NO speed for the pump plugged into CHA_FAN4. That INCLUDED setting that header to PWM Mode to guarantee full power and speed. Is that right? Most certainly that says complete failure of the pump unit, consistent with al your other symptoms.

So if that is correct, the only solution is to replace the entire AIO system. You could get a simpler air-cooled system or another AIO. As AntonyLovric suggested above you can try contacting Tech Support at CoolerMaster to see if they will replace it free under warranty even though it was unused for some time before first install.
 
From what U see you did the temporary connections test if my #3 above and found NO speed for the pump plugged into CHA_FAN4. That INCLUDED setting that header to PWM Mode to guarantee full power and speed. Is that right? Most certainly that says complete failure of the pump unit, consistent with al your other symptoms.

So if that is correct, the only solution is to replace the entire AIO system. You could get a simpler air-cooled system or another AIO. As AntonyLovric suggested above you can try contacting Tech Support at CoolerMaster to see if they will replace it free under warranty even though it was unused for some time before first install.
Thanks a lot, turns out it was a dud. I bought a new aio and it's working under 30° now.