Problem of memory on 4 GB R400 = 2.96 GB available?

Hello

Can someone explain to me why my memory of 4 GB, appears in the form 2, 96Go memory can be used as well in XP and Windows 7?

I have red somewhere that xp could not contain more than 3 GB, OK then, but why the same issue in windows 7 (multiboot)?

He treats by a configuration of the bios problem?

Thanks for any help.

C.B

Welcome to the forum!

If you are running a 32-bit version of any OS - be it XP, Vista, W7 or Linux - only 3 GB of RAM can be used. You need a 64 bit in order to properly use the 4 GB OS you currently have.

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