I run the same system set up as far as cooler and cpu. i had similar issue. i made sure all the fans on cpu blew to back of the case thu my noctua. person who installed it for me has them blowing forward. i switched them around. and i also have 2 fans top of case blowing down in and 2 fans in the front blowing in and 1 fan in the back blowing out. all noctua fans. there like 78 cfm. except the two front fans are corsair stock. i have the front top fan hooked up to the pump fan connector. so it throttles with cpu. then i went into bios and changed the throttle to 1200rpm max. no longer sounds like a jet plane either, and im running at like 65 degrees when i game. its insane what a difference made. i have my cpu over clocked to 4.9 not five.
I hate to have to tell you, but that configuration is wrong. Completely wrong.
Front, bottom and side fans should be intake (In) like you have it, however, top fans should NEVER be intake. Ever. Under any circumstances, if we are talking about any kind of tower case whether with a top or bottom mounted power supply. The top of the case is where the MOST heat is located, and putting any intake fans there results in blowing hot air back down onto components, rather than sucking it out of the case. Even if there were no intake fans installed, at all, having any top fans configured to be exhaust fans would be desirable, in exactly the same way and for exactly the same reasons as having the rear fan configured to be an exhaust fan. Which is also an "always" situation.
Also, if you are using an air cooler rather than an AIO or open loop, you really don't want to populate the middle or front fan locations in the top of the case even if they ARE configured as exhaust fans because you end up "stealing" much of the cool ambient air coming in from your intake fans and take it right directly back out of the case before it even has a chance to reach the memory, CPU cooler or VRMs, and essentially doing nothing at all to help cool your components.
It is better to have only a rear and a top rear exhaust fan when using an air cooler, in my experience. But, it is absolutely better to have fans installed in the top location configured to be exhaust fans if you are going to put them there and run them anyhow, than it is to ever consider running top fans as intakes. That simply runs counter to ALL recommended configurations and best practices across the board.