I’m really new to building PCS but my fans are loud as hell

Are these fans good good or are they just break the bank good

If your fans a plugged in via molex see here, then they won't be controlled by the pc and will run at max speed. If your fans are all plugged in via the motherboard they might be loud or the fan speed is too high. You can make them run slower by adjusting the fan curve, of which there are instructions on Google.

I’ve adjusted my fan’s curves via BIOS—but I am really paranoid as this is my first build and figured that when it gets to above ~45C they should increase in speed. I do a lot of 3D rendering, not so much gaming, and my CPU and GPU usually average between 50-60C when I do this. Would lowering their speeds be detrimental to my mobo or components? 🥲