Question System won‘t boot after swapping to an AIO cooler ?

May 8, 2021
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Hey, I bought myself the NZXT Kraken Z73 AIO , I used to have the Ryzen Wraith Cooler RGB. I watched a Youtube Video for a step by step guide to installing it and followed each step exactly. The PC won‘t boot at all and doesn‘t show any signs of life. I did put back the Wraith Cooler and my PC worked fine again.

Im pretty sure it has something to do with the water cooling. When I turn on power I see a little Face blink for a second on the z73 but otherwise nothing happens with the pc upon attempting to power it on. My motherboard is an asrock b450. The only installation step i'm not so sure about is where to put the one cable from the Display into some "CPU Opt“ which I don't have on my Motherboard. Any suggestions?