Management memory at Vista Home Premium 32 bits

[Marcelo]

I have 4 gb of RAM memory in my computer (32-bit Vista Home Edition).
In control panel is shown that I have only 3GB of RAM.
Anyone know tell me that the 32-bit Vista Home Edition manages more than 3
GB of RAM?

Thanks !
Marcelo

 

[Tim Slattery]

I have 4 gb of RAM memory in my computer (32-bit Vista Home Edition).
In control panel is shown that I have only 3GB of RAM.
Anyone know tell me that the 32-bit Vista Home Edition manages more than 3
GB of RAM?

Some of your 4GB address space must be used to access video RAM, BIOS,
etc. See here for a complete discussion:
http://members.cox.net/slatteryt/RAM.html

 

[Ken Blake, MVP]

I have 4 gb of RAM memory in my computer (32-bit Vista Home Edition).
In control panel is shown that I have only 3GB of RAM.
Anyone know tell me that the 32-bit Vista Home Edition manages more than 3
GB of RAM?

All 32-bit versions of Windows (Vista as well as XP), even though
they have a 4GB address space, can only use *around* 3.1GB of RAM.
That's because some of that space is used by hardware and not
available to the operating system and applications. The amount you can
use varies, depending on what hardware you have installed, but is
usually around 3.1GB.

Note that the hardware is using the address *space*, not the actual
RAM itself. The rest of the RAM goes unused because there is no
address space to map it too.