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I have 4GB RAM installed, and I'm running on Windows 7 64-bit.

Why does Windows see only 3.24GB ? What can I do to make it see the full 4GB ?

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It sounds like your chipset/memory controller isn't mapping physical RAM addresses into areas > 4 GB when they conflict with devices. If you're lucky there's settings in the BIOS that can fix it, if you're not then the chipset only supports 4 GB of RAM, whether it's used by devices or RAM and you're stuck. – afrazier Sep 30 '11 at 18:11

The rest is probably used by your integrated graphics chip.

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thank's for the help, but how i can be Sure ? – Gold Oct 4 '10 at 22:06
@Gold - install a graphics card - it doesn't have to be the best! – ChrisF Oct 4 '10 at 22:08
When you boot your computer, go into the BIOS settings (should be a key like DEL or F12... try button-mashing). There it should explain how much RAM is being used by your graphics card. – Stacey Hanson Oct 4 '10 at 23:55

See what's being used

Run devmgmt.msc

click on view then Resources by type, then expand memory. See what range your video card is using.

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The best way to check what are the available resources use:

CPUZ And are you sure your OS is 64 bit cos, I get ~3.24 GB but the reason is that I am using 32 bit OS Best way to see your resources utilisation use NOD32's System Inspector

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