NH-D14 fan configuration question

[FPSUsername]

Hello,

I have a Noctua NH-D14 and I have it in the most basic configuration.
The fans on the noctua are default and one in the back of the case. I'm wondering if it would help, reducing the noise if I moved the case fan (Bequiet silent wings 2 1500RPM max) from the back to the top as exhaust as it runs at a slightly lower speed (~700 RPM if I'm correct).
This should theoretically improve temps as well since the air isn't blocked by the slower rotating fans.

I'm asking because it is a lot of work just to swap the fan to the top as there is not much space in my setup.
Case: Silent Base 800 (not window side)
mobo: Gigabyte Z97X-SLI rev1.2 (the socket is close to the back, there is about 1cm space between the cooler and the case fan at the back side)

 

[Rooster__]

Honestly the tempertature difference would not be significant enough to make a real difference, if you have case fans it's fine anyway. You might notice a difference, but it would be within margin of error ~1-2C. It might also change nothing- that cpu cooler is good enough so the fans should not be forced to ramp up to 100% under load, so unless the fan curve is highly aggressive, you will not be running the fans a full 700 rpm above the case fans. It would not improve noise either most likely, or i cannot see a way that it would make a noticeable difference

 

[FPSUsername]

Honestly the tempertature difference would not be significant enough to make a real difference, if you have case fans it's fine anyway. You might notice a difference, but it would be within margin of error ~1-2C. It might also change nothing- that cpu cooler is good enough so the fans should not be forced to ramp up to 100% under load, so unless the fan curve is highly aggressive, you will not be running the fans a full 700 rpm above the case fans. It would not improve noise either most likely, or i cannot see a way that it would make a noticeable difference

There is no fan curve, the speeds are fixed and there is no fan curve option in the bios, only for pwm, which they are not