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Windows 7: 4gb ram but only 3.25 usable

25 Feb 2010   #1
vatz

Windows 7 Ultimate 64bit
 
 
4gb ram but only 3.25 usable

i got some new ram (4gb Corsair Dominator DDR2 PC2-8500 (1066), 240 Pin) and now it says only 3.25 is useable. my system spec is in my profile. any ideas?


My System SpecsSystem Spec
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25 Feb 2010   #2
Jonathan_King

Windows 7 Professional x64
 
 

That is because you have the 32-bit version of Windows. Due to technical limitations, 32-bit can only address up to 4GB, but in practice, this number is lower. Upgrade to the 64-bit version and you will have access to all 4GB.
My System SpecsSystem Spec
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 4gb ram but only 3.25 usable




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