about noise

External Since: Mar 20, 2004 Posts: 11

Hi, supose you have 6 fans in your system: 1 for the CPU, 1 for the PSU, 1
for the NB,1 for the AGP, 1 for the HD and 1 for the case. Say, if all make
a noise of 30 dB, could we sum 30+30+30+30+30+30 = 180dB ?

180 dB is alot of noise dont you think?

Silva

External Since: Jan 03, 2004 Posts: 7693

On Mon, 19 Apr 2004 12:51:49 +0100, "Manuel Silva" <minasdomingos DeleteThis @sapo.pt>
wrote:

>Hi, supose you have 6 fans in your system: 1 for the CPU, 1 for the PSU, 1
>for the NB,1 for the AGP, 1 for the HD and 1 for the case. Say, if all make
>a noise of 30 dB, could we sum 30+30+30+30+30+30 = 180dB ?
>
>180 dB is alot of noise dont you think?
>
>Silva
>

No, noise is not additive. Do a Google search for relative loudness of
common sounds and you'll see that it's practically impossible to approach
180db with a computer, and if you did, you'd soon hear nothing at all, be
deaf.
<a style='text-decoration: underline;' href="http://www.howstuffworks.com/question124.htm" target="_blank">http://www.howstuffworks.com/question124.htm</a>

Further, there's no reason to use 30db fans. Highly o'c video card, CPU,
NB, case, can all be fitted with lower RPM quiet fans given properly
designed system with appropriate heatsinks and chassis design.