Windows 7 (32-bit) Patch to Support 4 GB Ram or more!| 3.68MB -=FS=-In the Internet often haunts thestatement a 32-bit operating system can technically only managed a maximum of 4 GB of RAM.
On Mon, 21 Feb 2011 15:51:40 +0000, field500 wrote:
I have a 64bit machine running Windows 7 Home Premium.
Although the machine may be a 64-bit machine, that doesn't mean that
what you have installed is the 64-bit version of Windows. From what
you say below, it sounds very much like you have the 32-bit version
installed.
All 32-bit client versions of Windows (not just XP/Vista/7) have a 4GB
address space (64-bit versions can use much more). That's the
theoretical upper limit beyond which you can not go.
But you can't use the entire address space. Even though you have a
4GB address space, you can only use around 3.1GB of RAM. That's
because some of that space is used by hardware and is not available to
the operating system and applications. The amount you can use varies, depending on what hardware you have installed, but can
range from as little as 2GB to as much as 3.5GB. It's usually around
3.1GB.
Note that the hardware is using the address space, not the actual
RAM itself. If you have a greater amount of RAM, the rest of the RAM
goes unused because there is no address space to map it to.
I have 6gb of RAM installed but Windows states only 3.25gb usable.
My BIOS states i have 6gb
My BIOS is apparently the latest version
I have removed each memory stick and checked ram available - it changes by the amount of memory i have removed etc so the system knows there is 6gb of ram installed.
Why won't windows use more than 3.25gb ram?
Thaks