4GB of RAM tunning in windows xp professional xp sp2 with 32bit

  • Thread starter Thread starter Yman
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Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Yman wrote:
> Thanks,
>
> How about if you have Qautro Process on windwos XP SP2 ?? will that work ?
>
> "John John (MVP)" wrote:
>
>> Yman wrote:
>>> Hi,
>>> I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo E6550
>>> @2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4 GB
>>> of RAM.
>>> I can see the 4GB of RAM in the Bios, but windows can't see it because it's
>>> 32 bit. I found articles with Microsoft so you can tune the memory. I
>>> followed the documentation and modified the bootini. I didn't have much luck
>>> I can only see 3GB in window mean while 4GB in the BIOS.
>>>
>>> This is the bootini "multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft
>>> Windows XP Professional" /fastdetect /PAE /3GB /Userva=2900
>>> /NoExecute=OptOut".
>>>
>>> Any Idea, note the machine supports DEP.
>> Windows XP doesn't fully support PAE and the 4GT RAM Tuning doesn't
>> really have anything to do with physical memory (RAM), it affects how
>> the Virtual Address Space is alloted between user mode processes and the
>> kernel-mode components, you should remove these switches from the
>> boot.ini file. Due to hardware addressing needs Windows XP 32-bits
>> cannot fully utilize 4GB of RAM and there is no way to overcome the
>> limitation.
>>
>> John
>>
>>

I wrote a long post on this topic,
http://groups.google.com/group/microsoft.public.windowsxp.general/msg/4b314125a4ac50c1

I'm not sure the /PAE switch actually has functionality.
Quoting the most relevant part of that post,

SH: Nonetheless, there is hope if you have *Windows XP Pro* 32-bit.

http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx

"Operating systems based on Microsoft Windows NT technologies have
always provided applications with a flat 32-bit virtual address space
that describes 4 gigabytes (GB) of virtual memory. The address space is
usually split so that 2 GB of address space is directly accessible to
the application and the other 2 GB is only accessible to the Windows
executive software.

The 32-bit versions of the Windows 2000 Advanced Server and Windows NT
Server 4.0, Enterprise Edition, operating systems were the first
versions of Windows to provide applications with a 3-GB flat virtual
address space, with the kernel and executive components using only 1 GB.
In response to customer requests, Microsoft has expanded the
availability of this support to the 32-bit version of Windows XP
Professional and all 32-bit versions of Windows Server 2003. ...

The virtual address space of processes and applications is still limited
to 2 GB unless the /3GB switch is used in the Boot.ini file. When the
physical RAM in the system exceeds 16 GB and the /3GB switch is used,
the operating system will ignore the additional RAM until the /3GB
switch is removed. This is because of the increased size of the kernel
required to support more Page Table Entries. The assumption is made that
the administrator would rather not lose the /3GB functionality silently
and automatically; therefore, this requires the administrator to
explicitly change this setting.

The /3GB switch allocates 3 GB of virtual address space to an
application that uses IMAGE_FILE_LARGE_ADDRESS_AWARE in the process
header. This switch allows applications to address 1 GB of additional
virtual address space above 2 GB.

The virtual address space of processes and applications is still limited
to 2 GB, unless the /3GB switch is used in the Boot.ini file. The
following example shows how to add the /3GB parameter in the Boot.ini
file to enable application memory tuning:

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(2)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINNT="????" /3GB

SH: I think shifting the extra 1GB of memory to applications
will in some situations result in fewer disk writes and
retrieval from data stored on the disk which is more efficient.
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

=?Utf-8?B?WW1hbg==?= wrote:
>
> I will be glad if I can get the machine to show 3.5GB of RAM. Is there any
> other way than editing the Boot.ini ??

wont help

--
http://www.bootdisk.com/
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bit

=?Utf-8?B?WW1hbg==?= wrote:
>
> I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo E6550
> @2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4 GB
> of RAM.
> I can see the 4GB of RAM in the Bios, but windows can't see it because it's
> 32 bit. I found articles with Microsoft so you can tune the memory. I

You have cards which are using ram.

--
http://www.bootdisk.com/
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

If I buy a USB Flash Memory would it help me with the issue?
Can I have more than 4 GB ?
We need to use it for Developers machine that has VMware workstations with
SharePoint installed.

"Plato" wrote:

> =?Utf-8?B?WW1hbg==?= wrote:
> >
> > I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo E6550
> > @2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4 GB
> > of RAM.
> > I can see the 4GB of RAM in the Bios, but windows can't see it because it's
> > 32 bit. I found articles with Microsoft so you can tune the memory. I
>
> You have cards which are using ram.
>
> --
> http://www.bootdisk.com/
>
>
>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Once again, other than yanking PCI devices out of the box there is
*absolutely* *nothing* that you can do to access the unavailable RAM.
To access the RAM you will have to use a 64-bit operating system or one
of the 32-bit server versions that supports PAE, Windows XP 32-bit will
not be able to fully use the installed RAM, period. You are beating a
dead horse!

John

Yman wrote:

> If I buy a USB Flash Memory would it help me with the issue?
> Can I have more than 4 GB ?
> We need to use it for Developers machine that has VMware workstations with
> SharePoint installed.
>
> "Plato" wrote:
>
>
>>=?Utf-8?B?WW1hbg==?= wrote:
>>
>>>I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo E6550
>>>@2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4 GB
>>>of RAM.
>>>I can see the 4GB of RAM in the Bios, but windows can't see it because it's
>>>32 bit. I found articles with Microsoft so you can tune the memory. I
>>
>>You have cards which are using ram.
>>
>>--
>>http://www.bootdisk.com/
>>
>>
>>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

NO and NO and No

--
Peter

Please Reply to Newsgroup for the benefit of others
Requests for assistance by email can not and will not be acknowledged.

"Yman" <Yman@discussions.microsoft.com> wrote in message news:B6A4CF2F-7408-4D0D-8F8F-5594F84CEAA2@microsoft.com...
> If I buy a USB Flash Memory would it help me with the issue?
> Can I have more than 4 GB ?
> We need to use it for Developers machine that has VMware workstations with
> SharePoint installed.
>
> "Plato" wrote:
>
>> =?Utf-8?B?WW1hbg==?= wrote:
>> >
>> > I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo E6550
>> > @2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4 GB
>> > of RAM.
>> > I can see the 4GB of RAM in the Bios, but windows can't see it because it's
>> > 32 bit. I found articles with Microsoft so you can tune the memory. I
>>
>> You have cards which are using ram.
>>
>> --
>> http://www.bootdisk.com/
>>
>>
>>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Thanks !

I know I don't have a choice, but what I was thinking the VMware for
Sharepoint is Windows 2003 SP2. I thought may be I can allocate the Memory
from the USB Flash Memory. The host is windows XP sp2 and the VMware 6.4 is
windows 2003 SP2.

What do you think John ?

I don't want be Pain in .. but other wise I need to go and get new machines
with Quad CPU.

"John John (MVP)" wrote:

> Once again, other than yanking PCI devices out of the box there is
> *absolutely* *nothing* that you can do to access the unavailable RAM.
> To access the RAM you will have to use a 64-bit operating system or one
> of the 32-bit server versions that supports PAE, Windows XP 32-bit will
> not be able to fully use the installed RAM, period. You are beating a
> dead horse!
>
> John
>
> Yman wrote:
>
> > If I buy a USB Flash Memory would it help me with the issue?
> > Can I have more than 4 GB ?
> > We need to use it for Developers machine that has VMware workstations with
> > SharePoint installed.
> >
> > "Plato" wrote:
> >
> >
> >>=?Utf-8?B?WW1hbg==?= wrote:
> >>
> >>>I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo E6550
> >>>@2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4 GB
> >>>of RAM.
> >>>I can see the 4GB of RAM in the Bios, but windows can't see it because it's
> >>>32 bit. I found articles with Microsoft so you can tune the memory. I
> >>
> >>You have cards which are using ram.
> >>
> >>--
> >>http://www.bootdisk.com/
> >>
> >>
> >>
>
>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

That won't work! The host or underlying operating system (Windows XP)
cannot fully access all the installed RAM so in turn the Virtual Machine
and any software that it runs will not be able to access all the RAM.
Even if you get a brand new machine with quad cores it still won't make
any difference if the machine comes with a 32-bit XP/Vista workstation
operating system. If VMware tells you to use the /3gb switch then use
it, it will help by making more Virtual Address Space available to the
application and in turn the Virtual Memory Manager will be able to map
more of the VAS to physical memory addresses, but that will still not
allow the use of the unavailable RAM, and it does not guarantee that the
full 3GB of VAS will be mapped to the RAM, it will be mapped to
available RAM and or the pagefile, it depends on what the kernel mode
processes and non pagegable code needs for its use.

Secondly, removable disks/flash memory cannot be used for the pagefile.

And finally, Microsoft Office SharePoint Server requires Microsoft
Windows Server 2003 Standard Edition, Windows Server 2003 Enterprise
Edition, Windows Server 2003 Datacenter Edition or Windows Server 2003
Web Edition to run. Do you have one of these server versions? If not,
how are you going to run this on VMware without one of these licenses?
If you do own one of these Server licenses then, depending on the
version that you own you may be able to install it on the computer and
use PAE to fully access the RAM.

John

Yman wrote:

> Thanks !
>
> I know I don't have a choice, but what I was thinking the VMware for
> Sharepoint is Windows 2003 SP2. I thought may be I can allocate the Memory
> from the USB Flash Memory. The host is windows XP sp2 and the VMware 6.4 is
> windows 2003 SP2.
>
> What do you think John ?
>
> I don't want be Pain in .. but other wise I need to go and get new machines
> with Quad CPU.
>
> "John John (MVP)" wrote:
>
>
>>Once again, other than yanking PCI devices out of the box there is
>>*absolutely* *nothing* that you can do to access the unavailable RAM.
>>To access the RAM you will have to use a 64-bit operating system or one
>>of the 32-bit server versions that supports PAE, Windows XP 32-bit will
>>not be able to fully use the installed RAM, period. You are beating a
>>dead horse!
>>
>>John
>>
>>Yman wrote:
>>
>>
>>>If I buy a USB Flash Memory would it help me with the issue?
>>>Can I have more than 4 GB ?
>>>We need to use it for Developers machine that has VMware workstations with
>>>SharePoint installed.
>>>
>>>"Plato" wrote:
>>>
>>>
>>>
>>>>=?Utf-8?B?WW1hbg==?= wrote:
>>>>
>>>>
>>>>>I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo E6550
>>>>>@2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4 GB
>>>>>of RAM.
>>>>>I can see the 4GB of RAM in the Bios, but windows can't see it because it's
>>>>>32 bit. I found articles with Microsoft so you can tune the memory. I
>>>>
>>>>You have cards which are using ram.
>>>>
>>>>--
>>>>http://www.bootdisk.com/
>>>>
>>>>
>>>>
>>
>>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Yman <Yman@discussions.microsoft.com> wrote:

>If I buy a USB Flash Memory would it help me with the issue?

No.

>Can I have more than 4 GB ?

Not unless you have 64-bit hardware and software.

>We need to use it for Developers machine that has VMware workstations with
>SharePoint installed.

Sounds like a good reason to check out 64-bit computing.

--
Tim Slattery
MS MVP(Shell/User)
Slattery_T@bls.gov
http://members.cox.net/slatteryt
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Dear John

I saw that all is saying "NO" to support of memory more than 4GB in 32Bit OS.

Can you please advice as I am confused on this when I read this statement
found in :
http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx

"Physical Address Extension. PAE is an Intel-provided memory address
extension that enables support of up to 64 GB of physical memory for
applications running on most 32-bit (IA-32) Intel Pentium Pro and later
platforms. Support for PAE is provided under Windows 2000 and 32-bit versions
of Windows XP and Windows Server 2003. 64-bit versions of Windows do not
support PAE."

Correct me if I am wrong. I read the above statement as -> PAE can be
supported in Windows 2000 & 32bit of WinXP & Win2003 Server. So long as PAE
is enable in these OS, it can support up to 64GB of Physical Memory for
applications running on 32bit Intel Pentium Pro & later platform.

So can I presume that if I installed 8GB of memory with a Quad Core
processor, I can fully make use of the rest of the available memory in
running application like Photoshop & 3DS MAX up to a maximum of 64GB if I
have /PAE switch in boot.ini?

If I am wrong, can you please rephrase it so that I can have a better
understanding on what this statement is talking about.

Thanks

Alvyn

"John John (MVP)" wrote:

> Windows XP doesn't fully support PAE and the 4GT RAM Tuning doesn't
> really have anything to do with physical memory (RAM), it affects how
> the Virtual Address Space is alloted between user mode processes and the
> kernel-mode components, you should remove these switches from the
> boot.ini file. Due to hardware addressing needs Windows XP 32-bits
> cannot fully utilize 4GB of RAM and there is no way to overcome the
> limitation.
>
> John
>
>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Windows 2000 Advanced Server and Windows 2000 Datacenter Server support
the use of this switch and respectively support memory limits of 8GB and
32GB with the use of the switch. Windows 2000 Professional does not
support the use of the switch. Windows XP supports PAE for hardware
enforced Data Execution Prevention (DEP), even with the use of the
switch the maximum available RAM that Windows XP supports is 4GB and
because of the hardware limitations discussed in earlier posts Windows
XP cannot address all the available RAM so it effectively cannot fully
use 4GB of RAM.

Current crop of Microsoft 32-bit operating systems that can utilise more
than 4GB of RAM with the use of Physical Address Extension:

Windows 2000 Advanced Server - 8 processors and 8 GB RAM

Windows 2000 Datacenter Server - 32 processors and 32 GB RAM
(support for 64 GB was not offered because of a lack of systems for testing)

Windows Server 2003, Enterprise Edition - 8 processors and 32 GB RAM

Windows Server 2003 SP1, Enterprise Edition - 8 processors and 64 GB RAM

Windows Server 2003, Datacenter Edition 32 processors and 64 GB RAM

Windows Server 2003 SP1, Datacenter Edition 32 processors and 128 GB RAM

Operating Systems and PAE Support
http://www.microsoft.com/whdc/system/platform/server/PAE/pae_os.mspx

Physical Address Extension - PAE Memory and Windows
http://www.microsoft.com/whdc/system/platform/server/PAE/PAEdrv.mspx

For Windows workstations the only way around the issue is to use 64-bit
hardware and a 64-bit workstation version.

John

Alvyn wrote:

> Dear John
>
> I saw that all is saying "NO" to support of memory more than 4GB in 32Bit OS.
>
> Can you please advice as I am confused on this when I read this statement
> found in :
> http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx
>
> "Physical Address Extension. PAE is an Intel-provided memory address
> extension that enables support of up to 64 GB of physical memory for
> applications running on most 32-bit (IA-32) Intel Pentium Pro and later
> platforms. Support for PAE is provided under Windows 2000 and 32-bit versions
> of Windows XP and Windows Server 2003. 64-bit versions of Windows do not
> support PAE."
>
> Correct me if I am wrong. I read the above statement as -> PAE can be
> supported in Windows 2000 & 32bit of WinXP & Win2003 Server. So long as PAE
> is enable in these OS, it can support up to 64GB of Physical Memory for
> applications running on 32bit Intel Pentium Pro & later platform.
>
> So can I presume that if I installed 8GB of memory with a Quad Core
> processor, I can fully make use of the rest of the available memory in
> running application like Photoshop & 3DS MAX up to a maximum of 64GB if I
> have /PAE switch in boot.ini?
>
> If I am wrong, can you please rephrase it so that I can have a better
> understanding on what this statement is talking about.
>
> Thanks
>
> Alvyn
>
> "John John (MVP)" wrote:
>
>
>>Windows XP doesn't fully support PAE and the 4GT RAM Tuning doesn't
>>really have anything to do with physical memory (RAM), it affects how
>>the Virtual Address Space is alloted between user mode processes and the
>>kernel-mode components, you should remove these switches from the
>>boot.ini file. Due to hardware addressing needs Windows XP 32-bits
>>cannot fully utilize 4GB of RAM and there is no way to overcome the
>>limitation.
>>
>>John
>>
>>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bit

In article <#6tRG32FJHA.616@TK2MSFTNGP06.phx.gbl>,
Ian D <taurus@nowhere.com> wrote:
>
>"Thee Chicago Wolf" <.@.> wrote in message
>news:fsbtc41j6pirgabklmp1gogrsca2c9ob1i@4ax.com...
>> >I 'm running windows XP SP2 on thinkcentre M55 with Intel Core 2 Duo
>> >E6550
>>>@2.33GHZ. I'm trying to tune the memory on windows xp sp2 so I can have 4
>>>GB
>>>of RAM.
>>>I can see the 4GB of RAM in the Bios, but windows can't see it because
>>>it's
>>>32 bit. I found articles with Microsoft so you can tune the memory. I
>>>followed the documentation and modified the bootini. I didn't have much
>>>luck
>>>I can only see 3GB in window mean while 4GB in the BIOS.
>>>
>>>This is the bootini
>>>"multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft
>>>Windows XP Professional" /fastdetect /PAE /3GB /Userva=2900
>>>/NoExecute=OptOut".
>>>
>>>Any Idea, note the machine supports DEP.
>>
>> PAE is not for Windows XP so get rid of that. Only leave the /3GB
>> switch. I would also ditch the /USEVA switch too. Only specific
>> applications installed would require you to need that switch and the
>> parameters following it. Do more research on Google for this.
>>
>> - Thee Chicago Wolf
>
>The purpose of the /userva switch is to provide sufficient memory
>address space for the XP kernel if the /3GB switch is used. The /3GB
>switch adds 1GB to the default 2GB of application memory address
>space at the expense of the OS kernel. If Task Manager showed 3.5GB
>of physical memory you would be okay, as 0.5GB would be available
>for the OS. If Task Manager only showed 3.1GB as available, XP
>would only have 100MB, which could lead to a lot of OS paging, or
>a system crash. That's why MS recommends a /userva in the range
>of 2800 - 2900 MB. The /userva switch gives some memory back to
>to OS that is taken by the /3GB switch.
>
>In addition, the extra 1GB provided by the /3GB switch can only
>be used by applications that are large address aware, such as
>Adobe Photoshop, or Photoshop Elements.
>


Is "large address aware" the same as PAE?

Does this mean that PS is capable of using PAE services?



--
Al Dykes
News is something someone wants to suppress, everything else is advertising.
- Lord Northcliffe, publisher of the Daily Mail
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Dear Alvyn,

This what happen to me, I read the article from Microsoft and they said it
can be done.

At least I'm getting migrane :)

"Alvyn" wrote:

> Dear John
>
> I saw that all is saying "NO" to support of memory more than 4GB in 32Bit OS.
>
> Can you please advice as I am confused on this when I read this statement
> found in :
> http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx
>
> "Physical Address Extension. PAE is an Intel-provided memory address
> extension that enables support of up to 64 GB of physical memory for
> applications running on most 32-bit (IA-32) Intel Pentium Pro and later
> platforms. Support for PAE is provided under Windows 2000 and 32-bit versions
> of Windows XP and Windows Server 2003. 64-bit versions of Windows do not
> support PAE."
>
> Correct me if I am wrong. I read the above statement as -> PAE can be
> supported in Windows 2000 & 32bit of WinXP & Win2003 Server. So long as PAE
> is enable in these OS, it can support up to 64GB of Physical Memory for
> applications running on 32bit Intel Pentium Pro & later platform.
>
> So can I presume that if I installed 8GB of memory with a Quad Core
> processor, I can fully make use of the rest of the available memory in
> running application like Photoshop & 3DS MAX up to a maximum of 64GB if I
> have /PAE switch in boot.ini?
>
> If I am wrong, can you please rephrase it so that I can have a better
> understanding on what this statement is talking about.
>
> Thanks
>
> Alvyn
>
> "John John (MVP)" wrote:
>
> > Windows XP doesn't fully support PAE and the 4GT RAM Tuning doesn't
> > really have anything to do with physical memory (RAM), it affects how
> > the Virtual Address Space is alloted between user mode processes and the
> > kernel-mode components, you should remove these switches from the
> > boot.ini file. Due to hardware addressing needs Windows XP 32-bits
> > cannot fully utilize 4GB of RAM and there is no way to overcome the
> > limitation.
> >
> > John
> >
> >
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi


"Yman" <Yman@discussions.microsoft.com> wrote in message
news:DE0AAF31-0151-4886-A7B3-B32BE1027699@microsoft.com...
> Dear Alvyn,
>
> This what happen to me, I read the article from Microsoft and they said it
> can be done.
>
> At least I'm getting migrane :)
>
> "Alvyn" wrote:
>
PAE can be enabled in Win XP, (for Intel DEP), but it will not
enable XP to use more than 4GB. PAE works in server editions
of Windows on later editions of Intel CPUs by enabling 4 extra
address lines to allow page switching of 16x4GB pages for a
maximum of 64GB.

The charts here explain it all.

http://msdn.microsoft.com/en-us/library/aa366778.aspx
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bit

adykes@panix.com (Al Dykes) wrote:

>>In addition, the extra 1GB provided by the /3GB switch can only
>>be used by applications that are large address aware, such as
>>Adobe Photoshop, or Photoshop Elements.

>Is "large address aware" the same as PAE?

No.

>Does this mean that PS is capable of using PAE services?

Don't know what PS is, but 32-bit XP does not support PAE for address
space extension. Period. 32-bit XP has a 4GB address space, some of
that must be used for BIOS, video memory, etc. You *cannot* use 4GB of
system RAM in 32-bit XP (or Vista). Period. No exceptions.

--
Tim Slattery
MS MVP(Shell/User)
Slattery_T@bls.gov
http://members.cox.net/slatteryt
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Yman <Yman@discussions.microsoft.com> wrote:

>Dear Alvyn,
>
>This what happen to me, I read the article from Microsoft and they said it
>can be done.

XP supports PAE *only* to enable DEP (data execution prevention) NOT
to extend the address space.

--
Tim Slattery
MS MVP(Shell/User)
Slattery_T@bls.gov
http://members.cox.net/slatteryt
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Can you please see this article from Microsfot. Go to this site
"http://www.microsoft.com/whdc/driver/kernel/mem-mgmt.mspx" and download the
meg-mgmt and check the specs on windows XP SP2 32bit.

They say Windows XP SP2 32 bits support 4GB of RAM and this is all what I'm
looking to. I only want to show 4GB of Memory.

Please advise

"Tim Slattery" wrote:

> Yman <Yman@discussions.microsoft.com> wrote:
>
> >If I buy a USB Flash Memory would it help me with the issue?
>
> No.
>
> >Can I have more than 4 GB ?
>
> Not unless you have 64-bit hardware and software.
>
> >We need to use it for Developers machine that has VMware workstations with
> >SharePoint installed.
>
> Sounds like a good reason to check out 64-bit computing.
>
> --
> Tim Slattery
> MS MVP(Shell/User)
> Slattery_T@bls.gov
> http://members.cox.net/slatteryt
>
 
Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

Re: 4GB of RAM tunning in windows xp professional xp sp2 with 32bi

On Thu, 25 Sep 2008 07:21:01 -0700, Yman
<Yman@discussions.microsoft.com> wrote:

> They say Windows XP SP2 32 bits support 4GB of RAM and this is all what I'm
> looking to. I only want to show 4GB of Memory.


All 32-bit client versions of Windows (not just Vista/XP) have a 4GB
address space. That's the theoretical upper limit beyond which you can
not go.

But you can't use the entire 4GB of 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. The rest of the RAM goes unused because there is no
address space to map it too.

--
Ken Blake, Microsoft MVP - Windows Desktop Experience
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