Fans are generally speaking the most noisy part of any computer.
Unfortunately we can't just get rid of them, because the
computer would burn to a crisp on the inside, but at there are
some things we can do. First, let's talk about some
fundamentals: Fans move air for the purpose of getting hot air
out of your computer and cooler air in. In doing so, fans cause
two types of noise, one is caused by the fan actually spinning,
and can be screeching, humming or buzzing. The other is the
hissing noise caused by air moving. Both can be fixed by using
better designed fans with lower rpms, but this can cause your
computer to run hotter, so you should keep an eye on the
temperature in your computer for a while after doing anything to
the fans in your computer. Apart from replacing fans, there is
also a trick that allows you to run your fans at a lower speed.
By simply rewiring the fan connector, you can make the fan run
at 7 volts instead of 12 volts, which will roughly make the fan
run at half the speed. I will creat