Adding 4096 of memory only shows 3.00 gb usable?

I have setup Windows 7 x86 machines for VDI's to use 4096 of memory, but it shows 3.00gb usable memory.  See screenshot.  I should have around 3.5 gb available, I believe I am missing something here, not understanding why usable memory is at 3gb.

See screenshot.
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mystikal1000Asked:
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JohnConnect With a Mentor Business Consultant (Owner)Commented:
The additional memory is usually used for video.

Your 32-bit machines only have 3Gb usable.

... Thinkpads_User
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n2fcConnect With a Mentor Commented:
1) Screenshot missing
2) x86 cannot use full 4GB... Actual amount useable depends on 2 main factors:
    a) Motherboard max addressable
    b) Any shared video memory used by video chips
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dipopoCommented:
Agreed with others, PCI BUS takes at least 700MB.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
which VMware product is this?

VMware View?
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Tony BarkdullCommented:
agreed with others.

32bit Windows 7 OS can only use 3 gb out of the 4096 you have

to use it all (or more), you will need 64bit OS
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JohnBusiness Consultant (Owner)Commented:
@mystikal1000  - I gave up on 32-bit machines 5 years ago. For VMware usage, my Vista, Windows 7, Windows 8 and now Windows 8.1 have all been 64-bit and all 8 Gb machines. My current machine can go to 16 Gb if I need it.

So if you are looking toward modern processing, you need 64-bit operating systems.

.... Thinkpads_User
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mystikal1000Author Commented:
Thanks for everyone's response!!!
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JohnBusiness Consultant (Owner)Commented:
@mystikal1000 - Thanks and I was happy to help.

... Thinkpads_User
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