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if you have an video card incorporated in the motherboard that might take some of your ram, check in your bios
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if you have an video card incorporated in the motherboard that might take some of your ram, check in your bios

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Also, if you system only supports a max of 4GB or RAM, it is possible you'll never see the full amount. &nbsp;What system do you have?
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Also, if you system only supports a max of 4GB or RAM, it is possible you'll never see the full amount.  What system do you have?

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The usable ram is what is available after the &nbsp;hardware takes their share.. there is nothing wrong with your machine
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The usable ram is what is available after the  hardware takes their share.. there is nothing wrong with your machine

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last time i checked onboard video is hardware.. but I could wrong :)
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last time i checked onboard video is hardware.. but I could wrong :)

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The onboard video does not, however, use any of the address space -- it's simply assigned shared video by the OS. &nbsp; &nbsp;In most cases, the amount of this shared video can be adjusted. &nbsp; &nbsp;It's a completely different process than the assignment of hardware addresses with a 32-bit OS, where the video is actually assigned some of the address space.<br />

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The onboard video does not, however, use any of the address space -- it's simply assigned shared video by the OS.    In most cases, the amount of this shared video can be adjusted.    It's a completely different process than the assignment of hardware addresses with a 32-bit OS, where the video is actually assigned some of the address space.


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Windows 7 Pro.<br />
64-bit<br />
<br />
it says:<br />
Installed Memory (RAM): 4.00GB (3.25GB usable)<br />
<br />
Why is onlyt 3.25GB useable.<br />
i thought I could add at least 8GB of ram, using 64bit OS<br />
Thanks
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Windows 7 Pro.
64-bit

it says:
Installed Memory (RAM): 4.00GB (3.25GB usable)

Why is onlyt 3.25GB useable.
i thought I could add at least 8GB of ram, using 64bit OS
Thanks

Why does my pc say only 3.25GB is useable

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