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Windows 7: os 64 bit doesnt use all 4 gb


12 Sep 2010   #1

 
 
os 64 bit doesnt use all 4 gb

Hello,
I have win 7 enterprise 64 bit with 4 gb ram.
in device manager, i see that 4 gb is recognized, but actually only 3 gb has been used (it's written in bracket near to the recognized memory)

any idea why is that ?

thanks

My System SpecsSystem Spec
.

12 Sep 2010   #2

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by igalep132 View Post
Hello,
I have win 7 enterprise 64 bit with 4 gb ram.
in device manager, i see that 4 gb is recognized, but actually only 3 gb has been used (it's written in bracket near to the recognized memory)

any idea why is that ?

thanks

snip a picture of the task manger tab performance and upload it to us.
My System SpecsSystem Spec
12 Sep 2010   #3

 
 

which tab ?


Attached Thumbnails
os 64 bit doesnt use all 4 gb-untitled.jpg  
My System SpecsSystem Spec
.


12 Sep 2010   #4

Windows 8.1 Pro x64
 
 

Quote   Quote: Originally Posted by igalep132 View Post
Hello,
I have win 7 enterprise 64 bit with 4 gb ram.
in device manager, i see that 4 gb is recognized, but actually only 3 gb has been used (it's written in bracket near to the recognized memory)

any idea why is that ?

thanks
You need to enable Memory remap in your BIOS if it is available
My System SpecsSystem Spec
12 Sep 2010   #5

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by igalep132 View Post
which tab ?
type msconfig in search>go to the advanced tab>look for max memory>uncheck and reboot

Did that help?


Good luck



Ken
My System SpecsSystem Spec
12 Sep 2010   #6

 
 

no, it doesnt
My System SpecsSystem Spec
12 Sep 2010   #7

Windows 8 Professional x64
 
 

check this out.


Attached Images
 
My System SpecsSystem Spec
12 Sep 2010   #8

 
 

that's what i did, (my check box is checked) but still i get only 2.99 gb
My System SpecsSystem Spec
12 Sep 2010   #9
Microsoft MVP

Win 7 Ultimate x64
 
 

Big help would be to know the make and model of the motherboard.

If the chipset on the motherboard only supports up to 4 GB of ram then what you see is what you get, and short of a new motherboard there is nothing you can do,

The system memory that is reported in the System Information dialog box in Windows Vista is less than you expect if 4 GB of RAM is installed

Quote:
When the physical RAM that is installed on a computer equals the address space that is supported by the chipset, the total system memory that is available to the operating system is always less than the physical RAM that is installed. For example, consider a computer that has an Intel 975X chipset that supports 8 GB of address space. If you install 8 GB of RAM, the system memory that is available to the operating system will be reduced by the PCI configuration requirements. In this scenario, PCI configuration requirements reduce the memory that is available to the operating system by an amount that is between approximately 200 MB and approximately 1 GB. The reduction depends on the configuration.
My System SpecsSystem Spec
12 Sep 2010   #10

 
 

the issue has started after i installed McAfee end point encryption, till then every thing was fine (4 gb was recognized and used) the problem that in McAfee web site i didn't find any solution
My System SpecsSystem Spec
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 os 64 bit doesnt use all 4 gb




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