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I installed 2GB X 4 in my PC why is it that only 3 5 is USABLE?

  • Configuration
  • RAM
  • Windows 7
Last response: in Windows 7
April 17, 2011 1:07:14 PM

hello, why is ti that only 3.5 is usable in my RAM while I installed 8GB (2GB x 4)? :( 

More about : installed 2gb usable

a b $ Windows 7
April 17, 2011 3:06:03 PM

It sounds like you are using the 32-bit version, and not the 64-bit version. The 32-bit versions can only see and use ~3.5 GB of total memory, while the 64-bit version has much, much higher memory limits.
April 17, 2011 4:00:24 PM

Correct, 64-bit (Ultimate for me) runs up to 256gigs of RAM where as 32-bit can't cap 4gigs of RAM so I hear.

Over all you needa upgrade your OS.
a c 209 $ Windows 7
April 17, 2011 4:38:30 PM

Assuming that you really are running the 64-bit version of Windows, the problem may be due to your boot configuration. Try this:

- Start -> type "msconfig" in the search box and hit <enter>

- Click the "boot" tab

- Click the "Advanced Options..." button

- Make sure that the "maximum memory" option is not checked.