what's your pc mainly used for? gaming? well if your fans are too loud you can only controller them from bios, DO NOT USE THIRD PARTY SOFTWARE its just harmful, so when your pc boots up press the delete key or whatever key your bios needs to be opened with (describes it on startup screen) and from there you go to smart fan settings (if you have a gigabyte motherboard) and you choose to set them on silent its simple but it may cause overheating if your pc needs to do heavy work like gaming
3rd party software for fan control isn't harmful to PC in any way. Only issue that could rise is not getting fan spinning at the preferred RPMs. But in that sense i agree that best way for digital fan control is via BIOS.
Though, your guide to control fans from BIOS doesn't help OP.
I take that you didn't read OP's text, why else would you suggest a fix that only works with Gigabyte MoBos? Since if you did read what OP said, you'd know that OP has Asus MoBo with completely different BIOS. In the old H77 chipset MoBo BIOS, OP doesn't have "S.M.A.R.T." or "silent" options.
So, if you don't have correct answer to a specific issue, don't post incorrect info in hopes of that applying to all MoBos and BIOSes out there. Which it doesn't. Posting incorrect info is bad business.