So I just set up a EVGA clc 280 and replaced the stock fans with Noctua NF-A14 PWM and it's all running just fine and all that.  I have it set up to cool a i9-10900x and it does a fairly good job of keeping it under control, but I'd like to do better.  So, I picked up another set of NF-A14 PWM fans to set up push/pull on the radiator.  My question is that is the AIO capable of running 4 fans without any issues?  I have a EVGA x299 Micro Atx 2 board and manual says that all the fan header have a 1 amp limit.  Does the Aio pull power from the fan header or from the USB header?
 
Thank you all in advance.