No fan should be 20db, check the fan for wirs getting in it or for dust. Also, put your compoy on the floor if it's not.
Captain Obvious, you obviously know little about computers... I built this not a month ago, there is no dust, it is as loud as I built it. Some cpu fans are quiter than 20dBa. I've seen and heard them. Putting it on the floor will do nothing more for it...
For a 100 USD u dont get anthing worth callin watercooling. u pretty much get what u pay for here and i wouldnt put my money on a cheap watercooler...I know several ppl that did that and next thing they know the motherboard is fried lol
Oh lol sorry about that....well liquid cooling is still great as long as it isnt the cheapest kits out there. Or save up to a vapochill chassi with integrated cooler cools down to -20 degrees celsius