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i have acer 6920 g .. and my cpu fan made a noise sound one day so i cleaned it with blower and it stops working at all .. so i replaced it with another fan .. not the same one but it works but before the original fan was defected i noticed that my cpu usage is alwaays above 50 % and when i try to open movie or any thing that us the cpu well ... the computer becomes very slow <br />
so after i change the fan the same problem appeared .. and btw the temperature of the cpu is normal not high .. and i noticed that there's a file sometimes it takes alot of processing usage &quot;audiodg.exe&quot; but this file is not the reason of cpu usage always <br />
so what i have to do ? buy the original fan ? and what if the problem continues ? because i had it before the original fan is defected ?<br />
or maybe its software problem ? &nbsp;or maybe a virus ? btw i have kaspersky internet security and updated everyday
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i have acer 6920 g .. and my cpu fan made a noise sound one day so i cleaned it with blower and it stops working at all .. so i replaced it with another fan .. not the same one but it works but before the original fan was defected i noticed that my cpu usage is alwaays above 50 % and when i try to open movie or any thing that us the cpu well ... the computer becomes very slow 
so after i change the fan the same problem appeared .. and btw the temperature of the cpu is normal not high .. and i noticed that there's a file sometimes it takes alot of processing usage "audiodg.exe" but this file is not the reason of cpu usage always 
so what i have to do ? buy the original fan ? and what if the problem continues ? because i had it before the original fan is defected ?
or maybe its software problem ?  or maybe a virus ? btw i have kaspersky internet security and updated everyday

i have problem with cpu usage on my laptop

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.

Components

A laptop or notebook is a portable personal computer with a clamshell form factor, suitable for mobile use. Although originally there was a distinction between laptops and notebooks, the former being bigger and heavier than the latter, there is often no longer any difference. Laptops are commonly used in a variety of settings, such as at work, in education, and for personal multimedia. A laptop combines the components, inputs, outputs and capabilities of a desktop computer, including the display screen, speakers, a keyboard, and pointing devices (such as a touchpad or trackpad) into a single unit. The device can be powered either from a rechargeable battery or by mains electricity from an AC adapter.

Laptops Notebooks

Windows Vista is an operating system created by Microsoft as the successor to Windows XP. It was intended for PCs, workstations and laptops, and shares the same code base as its successor, Windows 7. New features included an updated graphical user interface (GUI) and visual style dubbed Aero, a new search component called Windows Search, redesigned networking, audio, print and display subsystems, and new multimedia tools. Vista aimed to increase the level of communication between machines on a home network, using peer-to-peer technology to simplify sharing files and media between computers and devices. Windows Vista included version 3.0 of the .NET Framework, allowing software developers to write applications without traditional Windows APIs.