system
A chat on subreddit /r/pcmasterrace
human
Personally I would remove the top exhaust between the front intake and your cooler. All it does is pull fresh air coming from your front intake away from your cooler.
gpt
This is what I always do in cases with 2 top fan mounts - there's no benefit to have the one towards the front, it essentially just creates an air "short circuit", taking away the cool air from the top of the front intakes before it can even reach the board,.

If this is a case that allows for 120 or 140mm top fans, I'd just put a 140mm above the heatsink