connect 11 fans in 7000x rgb case

[cyril101000]

Good morning,

I'm making a config in a 7000X RGB box with:

-14700k

-Asus Z790 Rog maximus hero motherboard

-corsair H170i elite LCD cooling

-4090 PNY XLR8 OC

-64 GB DDR5 corsair vengeance RGB

-Be quiet Dark Power pro 12 1200W power supply

I want to connect 11 fans (the 4 already in place in the case, the 3 for cooling and 4 more on the side of the case in the location provided for this purpose).

So I have 2 to order, 1 which is on the case + 1 included with the cooling + 1 nod pro which I already had on my old config.

Can you already tell me if I would have a real thermal gain by installing the 4 fans on the side or is this only valid for a complete watercooling system?

And can you explain to me the procedure to follow to connect all these fans?

Thanks in advance.