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Windows Vista Tips > Newsgroups > Windows Vista General Discussion > 2Gb or 4Gb??

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Thomas N.
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      11-27-2007
Hi
When I installed Vista 32-bit business, I had 2 Gb of RAM installed.
I installed an additional 2Gb of RAM and Vista still reports that I have 2
Gb RAM. The BOIS detects 4 Gb.

Any suggestions?

:t)homas
 
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Andre Da Costa[ActiveWin]
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      11-27-2007
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:

http://support.microsoft.com/kb/929605/en-us

Understanding Address Spaces and the 4GB Limit - [H]ard|Forum:
http://www.hardforum.com/showthread.php?t=1035670
--
Andre
Blog: http://adacosta.spaces.live.com
My Vista Quickstart Guide:
http://adacosta.spaces.live.com/blog...3DB!9709.entry

"Thomas N." <Thomas N.@discussions.microsoft.com> wrote in message
news:6CD7E9AB-3A02-4723-8E8B-...
> Hi
> When I installed Vista 32-bit business, I had 2 Gb of RAM installed.
> I installed an additional 2Gb of RAM and Vista still reports that I have 2
> Gb RAM. The BOIS detects 4 Gb.
>
> Any suggestions?
>
> :t)homas



 
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ato_zee@hotmail.com
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      11-28-2007

On 27-Nov-2007, "Andre Da Costa[ActiveWin]" <> wrote:

> 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:


Vista 64bit supports 4GB, but depending on the motherboard you may only
see just over 3GB. Like my shiddy Asus P5VD2-X shows 4GB Crucial
installed, 3.268GB available, that's before Vista 64bit boots.
Vista only sees the available memory. Last time I buy Asus.
I think 32bit Vista may have a 2GB limit.
 
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dzomlija
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      11-28-2007

ato_zee;528113 Wrote:
> Vista 64bit supports 4GB, but depending on the motherboard you may only
> see just over 3GB. Like my shiddy Asus P5VD2-X shows 4GB Crucial
> installed, 3.268GB available, that's before Vista 64bit boots. Vista
> only sees the available memory. Last time I buy Asus. I think 32bit
> Vista may have a 2GB limit.


This problem is not limited to Asus, but just about every manufacturer.
The deficit in installed and available memory is a result of the use of
onboard devices that still utilise 32-Bit address spaces, making that
memory unavailable for use by the system. This is an issue we'll
continue to see untill device manufacturers make a solid move to use 64
bit addressing for their devices. This isn't likely to happen anytime
soon, though.

Vista 32-Bit can see a maximum limit of 4GB, because that is the
physical limit of 32-Bit addressing (2^32 = 4,294,967,296 bytes or
4096MB or 4GB).

Vista 64 Bit is another animal entirely, and depending on which version
of Vista x64 you use, is software limited to betwen 8GB and 128GB of
memory. These limits are enforced because by the time anybody can build
motherboards and memory chips capable of the maximum limit of 64 Bit
addressing (2^64 = 18,446,744,073,709,551,616 bytes), then even Windows
Seven will be considered retro!

To get the correct MegaByte (MB), GigaByte (GB), TeraByte (TB),
PetaByte (PB), ExaByte (EB), ZetaByte (ZB) and YottaByte (YB) values,
just keep dividing the byte values I gave above by 1024.

Yowza! I'd kill for a machine with even 1EB of solid state storage!


--
dzomlija

____________________________________
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Do you hear, huh? The Alpha and The Omega? Death and Rebirth? -And as
you die, so shall I be Reborn-...

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Tim Slattery
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      11-28-2007
wrote:


>Vista 64bit supports 4GB, but depending on the motherboard you may only
>see just over 3GB.


No, that's true of the 32-bit version. 64-bit Vista can handle up to
128GB of RAM (IIRC). I don't know of any motherboard that will handle
anywhere near that much.

--
Tim Slattery
MS MVP(Shell/User)

http://members.cox.net/slatteryt
 
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NoStop
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      11-28-2007
Thomas N. wrote:

> Hi
> When I installed Vista 32-bit business, I had 2 Gb of RAM installed.
> I installed an additional 2Gb of RAM and Vista still reports that I have 2
> Gb RAM. The BOIS detects 4 Gb.
>
> Any suggestions?
>
> :t)homas


Quit wasting your money trying to get Vista to be faster. It won't as it's a
p.o.s. bloated toy operating system that M$ threw together because its XP
was getting old.

Cheers.

--
Ubuntu 7.10 ... wow!
http;//www.ubuntu.com
 
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Frank
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      11-28-2007
NoStop wrote:
> Thomas N. wrote:
>
>
>>Hi
>>When I installed Vista 32-bit business, I had 2 Gb of RAM installed.
>>I installed an additional 2Gb of RAM and Vista still reports that I have 2
>>Gb RAM. The BOIS detects 4 Gb.
>>
>>Any suggestions?
>>
>>:t)homas

>
>
> Quit wasting your money trying to get Vista to be faster. It won't as it's a
> p.o.s. bloated toy operating system that M$ threw together because its XP
> was getting old.
>
> Cheers.
>


Hey doris, RS needs his hairy arse kissed and he's asking for you.
Don't keep him waiting!
Frank
 
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roy69
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      11-28-2007

dzomlija;528148 Wrote:
> This problem is not limited to Asus, but just about every manufacturer.
> The deficit in installed and available memory is a result of the use of
> onboard devices that still utilise 32-Bit address spaces, making that
> memory unavailable for use by the system. This is an issue we'll
> continue to see untill device manufacturers make a solid move to use 64
> bit addressing for their devices. This isn't likely to happen anytime
> soon, though.
>
> Vista 32-Bit can see a maximum limit of 4GB, because that is the
> physical limit of 32-Bit addressing (2^32 = 4,294,967,296 bytes or
> 4096MB or 4GB).
>
> Vista 64 Bit is another animal entirely, and depending on which version
> of Vista x64 you use, is software limited to betwen 8GB and 128GB of
> memory. These limits are enforced because by the time anybody can build
> motherboards and memory chips capable of the maximum limit of 64 Bit
> addressing (2^64 = 18,446,744,073,709,551,616 bytes), then even Windows
> Seven will be considered retro!
>
> To get the correct MegaByte (MB), GigaByte (GB), TeraByte (TB),
> PetaByte (PB), ExaByte (EB), ZetaByte (ZB) and YottaByte (YB) values,
> just keep dividing the byte values I gave above by 1024.
>
> Yowza! I'd kill for a machine with even 1EB of solid state storage!


Just because you have a true 64bit os does not mean you have true 64
bit hardware.
For this you would need 64 hardwired lines in the address bus and
control bus and other busses to take advantage of the speed. I have not
looked into this alot but do understand programming and computer
archetecture. If you have a 64bit motherboard I doubt 32 bit os will
not run on it. Hardware and software need to work together to get a
TRULY 64 bit computer.


--
roy69

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Paul Knudsen
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      11-29-2007
On Wed, 28 Nov 2007 17:38:14 GMT, wrote:

>I think 32bit Vista may have a 2GB limit.


3317 Magabits here, though I actually have (I hope!) 4 Gigs. Should I
make a virtual disk and put part of the swap file on it?
 
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Gary Mount
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      11-29-2007
Dell's PowerEdge 6800 can handle 64GB of RAM.

"Tim Slattery" <> wrote in message
news:...
> wrote:
>
>
>>Vista 64bit supports 4GB, but depending on the motherboard you may only
>>see just over 3GB.

>
> No, that's true of the 32-bit version. 64-bit Vista can handle up to
> 128GB of RAM (IIRC). I don't know of any motherboard that will handle
> anywhere near that much.
>
> --
> Tim Slattery
> MS MVP(Shell/User)
>
> http://members.cox.net/slatteryt


 
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