Tech Support > Microsoft Windows > Performance/Maintainence > XP Pro Max Physical Memory
XP Pro Max Physical Memory
Posted by 998R on December 19th, 2005


How much physical RAM will XP support? My computermanufacturer says 2.7GB,
but the MOBO manufacturer says 4GB!

TIA for any info...

Posted by Bert Kinney on December 19th, 2005


Hi,

WindowsXP supports up to 4 gigabytes (GB) of RAM.

Point your computer manufacture to this article.

Processor and memory capabilities of Windows XP Professional x64 Edition
and of the x64-based versions of Windows Server 2003
http://support.microsoft.com/default...b;en-us;888732

--
Regards,
Bert Kinney MS-MVP Shell/User
http://bertk.mvps.org


998R wrote:
> How much physical RAM will XP support? My computermanufacturer says
> 2.7GB, but the MOBO manufacturer says 4GB!
>
> TIA for any info...



Posted by cc_crash on December 19th, 2005


According to the MCSE Training kit put out by the Microsoft press for Windows
XP Pro- the minimum is 64 MB (128 Recommended) and the maximum is 4GB.

You might want to check with your computer manufacturer and see if that is
really a hardware limit of the computer.

I hope this helps.

"998R" wrote:

> How much physical RAM will XP support? My computermanufacturer says 2.7GB,
> but the MOBO manufacturer says 4GB!
>
> TIA for any info...

Posted by 998R on December 19th, 2005


Thank you very much!

"Bert Kinney" wrote:

> Hi,
>
> WindowsXP supports up to 4 gigabytes (GB) of RAM.
>
> Point your computer manufacture to this article.
>
> Processor and memory capabilities of Windows XP Professional x64 Edition
> and of the x64-based versions of Windows Server 2003
> http://support.microsoft.com/default...b;en-us;888732
>
> --
> Regards,
> Bert Kinney MS-MVP Shell/User
> http://bertk.mvps.org
>
>
> 998R wrote:
> > How much physical RAM will XP support? My computermanufacturer says
> > 2.7GB, but the MOBO manufacturer says 4GB!
> >
> > TIA for any info...

>
>
>

Posted by 998R on December 19th, 2005


Thank you very much!

"cc_crash" wrote:

> According to the MCSE Training kit put out by the Microsoft press for Windows
> XP Pro- the minimum is 64 MB (128 Recommended) and the maximum is 4GB.
>
> You might want to check with your computer manufacturer and see if that is
> really a hardware limit of the computer.
>
> I hope this helps.
>
> "998R" wrote:
>
> > How much physical RAM will XP support? My computermanufacturer says 2.7GB,
> > but the MOBO manufacturer says 4GB!
> >
> > TIA for any info...

Posted by Arnie on December 20th, 2005


"998R" <998R@discussions.microsoft.com> wrote in message
news:6F3DBB27-4AE0-423A-B41F-F8514AC78B09@microsoft.com...
> How much physical RAM will XP support? My computermanufacturer
> says 2.7GB,
> but the MOBO manufacturer says 4GB!
>
> TIA for any info...


XP will support up to 4GB of RAM. However, you're dealing with
virtual memory. A machine with 2 GB of physical RAM can still
give you 4 GB of virtual memory. But, the more physical RAM, the
better.

4 GB of virtual memory is divided into the upper 2 GB for the OS
and the lower 2 GB for the application. The app will never be
able to access all of its 2 GB for a number of reasons. There is
something called the /3GB switch that can be used to force the OS
to use the upper 1 GB and give the app the lower 3 GB. This has
to be set in the boot record. Using this switch will probably
allow the app to access around 2.7 GB IF the EXE image has a flag
set that tells it it can do this. In many cases this isn't a
good idea because the OS now has less space for caching. Google
for "/3GB" and "LARGEADDRESSAWARE".

- Arnie


Posted by Gerry Cornell on December 21st, 2005


Bert

Are all computers sold with two processors? The motherboard may
accommodate two but does that mean a computer manufacturer is
obliged to install two?

Isn't it possible ( probable? ) that 998R is misinterpreting a
statement by the manufacturer as to what has been provided for
what might have been provided?

Has 998R asked the computer manufacture the right question?

--

Regards.

Gerry
~~~~
FCA
Stourport, England

Enquire, plan and execute
~~~~~~~~~~~~~~~~~~~


"Bert Kinney" <bert@NSmvps.org> wrote in message
news:%23uiU3XOBGHA.2704@TK2MSFTNGP15.phx.gbl...
> Hi,
>
> WindowsXP supports up to 4 gigabytes (GB) of RAM.
>
> Point your computer manufacture to this article.
>
> Processor and memory capabilities of Windows XP Professional x64 Edition
> and of the x64-based versions of Windows Server 2003
> http://support.microsoft.com/default...b;en-us;888732
>
> --
> Regards,
> Bert Kinney MS-MVP Shell/User
> http://bertk.mvps.org
>
>
> 998R wrote:
>> How much physical RAM will XP support? My computermanufacturer says
>> 2.7GB, but the MOBO manufacturer says 4GB!
>>
>> TIA for any info...

>
>




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