Dear all

Mairy pas Dell Precision Workstation 370 hay. jb me computer start krta hoon to os ka Fan Itna speed marta hay ke jaisy koi bara exhaust fan lagaya ho.pehly aisy nahi hota tha.Boht he ziada shor krta hay.mene dust blower k sath achi tarh saf b krdia hay....aisa Q hota hay???