Order the NH-D15S combo as above. Going to remove the Kraken today and send it back. I cannot live with it when it's this noisy. Got a new video of it this morning.
https://photos.app.goo.gl/DydfgPpGuBvdH9GP6
Ouch. Sounds like a drunk pool party in there.
Mounted a NH-D15S in my system recently. Tip - literally as soon as the first of the two spring-screws makes contact, stop screwing. If you carry on even a little bit, the other screw is rarely able to make contact. So both in just a tad, then take turns. It just sounds like good practice I know. But I can't emphasize enough how strict it was about it lol.
Personally. Attached the middle fan to the right/front heatsink.
Like water, air will take path of least resistance or more flow would be drawn from path with least resistance. Currently with that middle fan attached to the rear sink, theres a break in the seal so air will not be drawn through as much from the front/first heatsink
Heatsinks in pull need low static pressure and reliant on airflow.
Heatsinks with push need high static pressure to verify airflow.
Learnt this from EKWB and Alphacool R&D guys
Which is exactly how it's set up right now. That middle fan is pulling from the first heatsink with low static pressure (due to gap), and pushing on second heatsink with high static pressure (sealed).
The last sink basically has push and pull with the first having half the potential airflow through it .
Then again, real world gains are prob tiny
How're you finding the 4k monitor? Is 1440p gaming on it like you intended to do as sharp as it was on the original Dell?