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Windows 7: Is there a workaround to use all 4GB of RAM?

15 Jun 2010   #11
bilzmale

Win 7 Home Premium 64 bit
 
 

Quote   Quote: Originally Posted by whs View Post
Quote:
Or was I dreaming?
Yes you are dreaming. The 32bit system can only address 4GB (to be exact it is 4GB minus 1 byte) of address space and any device/function of the system that requires address space has to be mapped into these 4GB. Some of it is explained in this article, but if in addition you have a graphics card with address space requirements, that goes against the 4GB too. In a bad case you can end up with only something between 2 and 3GBs that remain for the OS.
So what is the usefulness of graphic card memory - is it actual additional memory or just the capability to address installed RAM.


My System SpecsSystem Spec
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15 Jun 2010   #12
Kirsch

Windows 7 Ultimate
 
 

Video memory may be used for storing other data as well as the screen image, such as the Z buffer, which manages the depth coordinates in 3D Graphics and compiled shader programs.
My System SpecsSystem Spec
15 Jun 2010   #13
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote:
I was comparing onboard graphics sharing system RAM with a dedicated video card.
An on-board graphic shares real RAM. A dedicted graphics card uses address space. The effect on the usable RAM for the OS is the same.
My System SpecsSystem Spec
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15 Jun 2010   #14
pallesenw

Windows
 
 

Quote   Quote: Originally Posted by whs View Post
The 32bit system can only address 4GB (to be exact it is 4GB minus 1 byte)
Remember to count zero also. The addressable address space (without PAE) is 0x00000000 to 0xffffffff. 4GB exactly.
My System SpecsSystem Spec
15 Jun 2010   #15
arkhi

Windows 2000 5.0 Build 2195
 
 

PAE. But then again, this:

Quote   Quote: Originally Posted by stormy13 View Post
bilzmale, instead of trying to get things working like that on 32 bit using PAE do yourself a favor and just go 64 bit.
My System SpecsSystem Spec
15 Jun 2010   #16
xarden

Windows 7 Enterprise
 
 

I concur.
64bit for high spec machines.
32bit for anything less.
My System SpecsSystem Spec
15 Jun 2010   #17
pallesenw

Windows
 
 

Sure, a 64bit is preferable. But is it technically possible (I think the OP was fishing for this) to go beyond 4GB in a 32bit OS? Yes it is.

According to some sources only a small patch it needed to make vista/win7 do just that. Or as mentioned, some ram-disk products can build their home up there.
My System SpecsSystem Spec
15 Jun 2010   #18
squall leonhart

Windows 7
 
 

Its not possible.

simple as that.

theres no patch available. no tweak, no config, no boot switch.
My System SpecsSystem Spec
15 Jun 2010   #19
bigmck

Windows 7 Home Premium 32-Bit - Build 7600 SP1
 
 

Not long ago I d/l the "Ultimate Windows Tweaker". There are many different things to check to change up your system. One of them is "Use 4 GB of memory on a 32-bit system". I thought, "I have to try that". Just as I suspected, it doesn't work. I can't even imagine why that was put on there. Anyone had experience with that program?
My System SpecsSystem Spec
15 Jun 2010   #20
squall leonhart

Windows 7
 
 

of course not, because what it suggests is impossible for the memory subsystem of a 32bit host operating system.
My System SpecsSystem Spec
Reply

 Is there a workaround to use all 4GB of RAM?




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