Editing Quiet PC (section)

==Measuring noise==
Though standards do exist for measuring and reporting sound power output by such things as computer components, they are often ignored.<ref>{{cite web| url= http://www.silentpcreview.com/article121-page4.html| title= A Primer on Noise in Computing | publisher= SPCR | first = Michael ‘Mike’ | last = Chin|date= 2003-10-28|access-date = 2008-10-10}}</ref><ref>{{cite web| url= http://www.silentpcreview.com/article28-page1.html| title= Power Supply Fundamentals| first= Michael ‘Mike’| last= Chin| date= 2005-04-06| publisher= SPCR| access-date= 2008-10-10| archive-date= 2011-11-26| archive-url= https://web.archive.org/web/20111126201935/http://www.silentpcreview.com/article28-page1.html| url-status= dead}}</ref> Many manufacturers do not give sound power measurements.  Some report sound pressure measurements, but those that do often do not specify how sound pressure measurements were taken. Even such basic information as measurement distance is rarely reported. Without knowing how it was measured, it is not possible to verify these claims, and comparisons between such measurements (e.g. for product selection) are meaningless.  Comparative reviews, which test several devices under the same conditions, are more useful, but even then, an average sound pressure level is only one factor in determining which components will be perceived as quieter.<ref name=WhatisSilentPC />