How to cool my pc?

35$ for a Noctua IndustrialPPC is too much, do you have cheaper (20$) alternatives?
Same thing for the EKWB Vardar F4-120, here in Canada it costs 30$, I don't want to spend 130$ on fans..
 


You would only need those for the H80i. For case, you can take something like Noctua NF-A12/A14.
For the H80i, there's also Noctua NF-F12 which should be cheaper than IndustrialPPC.
 


Those are good for the case, but the AIO liquid-cooler requires static pressure/focused flow fans so the air can move through the radiator. And the stock fans on them are already the Corsair SP120. Which are horrible.

I swapped mine on the H100i to Vardar F4-120 and they made quite a bit difference.
 


That's why they're set up push/pull
 


That's absolutely a possibility, although the fans that come with the h80i are ugly as sin lol. If looks aren't a concern you're set!
 


That works, just note that you will still have quite loud noise because of them.
Maybe not as loud as now though.
 
The put the same link twice.

I don't have enough space to pu a fan in the bottom.

I'll start by replacing my h80i's fans with vardars, then using my old ones as intakes, if its too loud, I'll change them for something quieter.