Okay. I've seen others say it isn't possible for the Quadro, so thank you for this information. I'll give it a try.
Could you let me know if this worked with your setup?
I'm trying to figure this out since AC didn't respond yet, I have a relay alarm that isn't working properly. All the other solutions either with Aquasuite or motherboard 3 pin cable signal alarms didn't work. Could you also let us know which platform you're using? I've tried all of this on amd x570 and the bios didn't shut down the system even when Aquasuite cut off the signal to the mobo.