I'd recommend checking out some YouTube reviews in regards to water-cooling, several have talked about AIO but I skipped over those parts. I don't have AIO but

I'd recommend checking out some YouTube reviews in regards to water-cooling, several have talked about AIO but I skipped over those parts. I don't have AIO but if you want to keep absolutely silent, I would suggest mounting AIO fan-kit in the front of the 7XL instead of up top since that requires removing some of the critical soundproofing.