Sorry for the lack of info, new to this forumYour post and thread title are vague. We're going to need more info than that.
List our current system specs like so:
CPU:i7-9700k
CPU cooler:ibuypower 120 mm addressable rgb liquid cooling
Motherboard:asrock z390 phantom gaming 4-IB
Ram:xpg d41 ddr4-3200
SSD/HDD:
GPU:MSI gaming x trio rtx 2080ti
PSU:High Power 850watt 80+ gold
Chassis:TT View 31
New fans TT pure 14 aRGB sync
Then list the fans you've purchased. We can move forward from there.