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    Windows 7 Why Is My 4GB RAM Showing Only 2GB Usable on Windows 7?

    Hey guys. I have 4gb ram installed but system says use-able ram is 2227 Mbs. My specs: W7 ultimate 64 bit Intel core2 quad CPU ATI radeon HD 4800 series How come a little over 1gb of ram is lost somewhere? Thanks in advance. I will happily give more information. Regards, Andreas
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