Is the noise you hear appreciably louder than a similar model of PC? If so carry on with this guide, if not then the noise would not be considered to be abnormal. You may want to look at other options to quieten your PC. Such as upgrading the parts to quieter parts.
Microsoft requires that a Windows Vista-capable PC have a modern processor and 512MB RAM (memory); however, to enjoy the Windows Vista Aero experience, you should configure your system with the following hardware components:
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