4 GB memory - only 2.87GB usable

Hello there,
I own a Toshiba S300-EZ2501. Recently I upgraded my RAM to 4GB, but the total usable memory for the system is showing 2.87GB.
After investigation, I found that the video card (Mobile Intel(R) 4 series express chipset family) is using about 1.2GB from my ram added to its only 128MB dedicated.
I tried to check my bios (Upgraded to the latest) to find any option for memory mapping for this video chipset but didn't find any. So, will be there any new BIOS update soon that will allow us to control this display adapter and how much memory it is allowed to use or any other way to help ?!
Best regards,
P.S. The OS I am using now is Windows 7 RC , and I had the same case with Windows Vista.

TechmanTom wrote:
I have a Toshiba L555d-S7930, Windows 7, 32bit, 4GB mem, and only showing 2.87GB usable. This is evident even using a 3rd party Prog. (Burnin Test) testing the memory. Any idea how I can get access to all or at least more of my memory?
You'll need to switch to a 64bit OS to see more ram, but since your display adapter uses shared memory you'll only gain about 256 megs anyway.  It's your display adapter that is using most of that 1.13gig of ram.
If you don't post your COMPLETE model number it's very difficult to assist you. Please try to post in complete sentences with punctuation, capitals, and correct spelling. Toshiba does NOT provide any direct support in these forums. All support is User to User in their spare time.

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