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Thomas TurnerFlag for United States of America

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4GB of ram installed and working on Vista, upgraded to Windows 7 and it shows 4GB install only 3 usable

4GB of ram installed and working on Vista, upgraded to Windows 7 and it shows 4GB install only 3 usable
Usable.png
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Rick Johnson

My guess is that your memory is being shared by your built in video card...
There are limitations on chipsets as well.  Make sure you have the latest version of your chipset driver.  If it was working in vista is should work here.  Any hardware changes after the upgrade?
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jramsier
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Thanks man.