usable memory of ram

i'v installed two 4 gb rams, and my 'my com' properties showing, installed ram 8gb but usable memory is only showing 3.89 gb.
is it nrmal?
what should be the usable memory, if installed ram (memory) is 8 gb?

what is the solution?
thank you.
8 answers Last reply Best Answer
More about usable memory ram
  1. What version of os u have 32bit ???
  2. Best answer
    rahul1 said:

    If you have 32bit Windows, that is perfectly normal.

    To change, a full reinstall of Win7 64bit would be the answer.
  3. ok. thanku so much dear. :)
  4. rahul1 said:

    Theres the problem u need 64bit to use more than 4gb memory

    Dont forget to close the post
  5. Dont forget to choose the best answer
  6. ok, so thats the idea..
  7. Yeah that would be the solution
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