[adding fans behind the radiator]

hello guys, I currently have the icue h150i elite capellix with 3 intake fans on the front.

 

I wanted to add 3 more intake fans at the back using this product https://www.amazon.com/Corsair-Hydraulic-Bearing-AirGuide-Technology/dp/B0BHTBQWM3/ref=sr_1_3?crid=HR3SG4ISVBWV&keywords=corsair+120mm+fan&qid=1708276469&s=electronics&sprefix=corsair+120mm+fan%2Celectronics%2C87&sr=1-3

its it okay or a good idea? what are the pros and cons on this? thank you!

[RAM upgrade]

I'm planning to upgrade my RAM and I currently have this https://www.amazon.com/gp/product/B082DJ19CK/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

 

can I add the newer version of this product which is this https://www.amazon.com/Corsair-Vengeance-3600MHz-PC4-28800-Desktop-dp-B08SPYCCF1/dp/B08SPYCCF1/ref=dp_ob_title_ce?th=1

 

or it has to be the same product? thanks!

[switching my cooler fan]

oh okay got it. cause I read somewhere that I have to use the stock fans that came with the cooler cause it has special functions specifically for the cooler lol

[switching my cooler fan]

hello guys, I currently have the ice h150i elite capellix, Can I use the corsair QL series ql120 rgb led fan on it instead of using the stock fans that came with it?