I have 3gb of ram but Physical memory has only 2559total memory?

Aug 8, 2015
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hello guys i have a 2gb ddr2 + 1gb ddr2 ram and it is DUAL CHANNEL UNGANGED but i expect it to have 3000mb total memory is there anything wrong i test it and in my experience it boost my pc performance a little thanks hope u guys can help me with this situation im using 32 bit windows 7
 
Solution
Some of the ram is reserved for system resources so having 2559 available would be totally normal! If you had 4GB normal is to have just over 3GB avaiable.