Hi all,

Just a quick question. I have XP home with SP3 and I'm trying to apply the
/3GB switch. I entered the correct lines in the boot.ini file using the
system/advance/start up recovery settings/edit. I then saved the file and
rebooted. After it re-booted I was told to look under the systems general
tab and make sure it said "physical address extension". But it does not.
I've rechecked the boot file and its typed exactly like I was instructed to
type. Does anyone know what I did wrong? Does Home edition allow the /3GB
switch? Thanks for the help

Re: 3 GB switch by John

John
Thu Aug 21 14:16:01 PDT 2008

The /3GB switch has nothing to do with Physical Address Extensions.

John

Mike wrote:

> Hi all,
>
> Just a quick question. I have XP home with SP3 and I'm trying to apply the
> /3GB switch. I entered the correct lines in the boot.ini file using the
> system/advance/start up recovery settings/edit. I then saved the file and
> rebooted. After it re-booted I was told to look under the systems general
> tab and make sure it said "physical address extension". But it does not.
> I've rechecked the boot file and its typed exactly like I was instructed to
> type. Does anyone know what I did wrong? Does Home edition allow the /3GB
> switch? Thanks for the help

Re: 3 GB switch by Jerry

Jerry
Thu Aug 21 14:21:35 PDT 2008

Try adding /PAE instead.

"Mike" <Mike@discussions.microsoft.com> wrote in message
news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
> Hi all,
>
> Just a quick question. I have XP home with SP3 and I'm trying to apply
> the
> /3GB switch. I entered the correct lines in the boot.ini file using the
> system/advance/start up recovery settings/edit. I then saved the file and
> rebooted. After it re-booted I was told to look under the systems general
> tab and make sure it said "physical address extension". But it does not.
> I've rechecked the boot file and its typed exactly like I was instructed
> to
> type. Does anyone know what I did wrong? Does Home edition allow the
> /3GB
> switch? Thanks for the help



Re: 3 GB switch by Mike

Mike
Thu Aug 21 17:28:01 PDT 2008

Thats the problem with the internet..."everyones an expert". This was
suggested in a post to help with out of memory (OOM) errors. At the end of
the boot edit I was to add "/userva=2650" to help increase the stability of
the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
suggest?

"Jerry" wrote:

> Try adding /PAE instead.
>
> "Mike" <Mike@discussions.microsoft.com> wrote in message
> news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
> > Hi all,
> >
> > Just a quick question. I have XP home with SP3 and I'm trying to apply
> > the
> > /3GB switch. I entered the correct lines in the boot.ini file using the
> > system/advance/start up recovery settings/edit. I then saved the file and
> > rebooted. After it re-booted I was told to look under the systems general
> > tab and make sure it said "physical address extension". But it does not.
> > I've rechecked the boot file and its typed exactly like I was instructed
> > to
> > type. Does anyone know what I did wrong? Does Home edition allow the
> > /3GB
> > switch? Thanks for the help
>
>
>

Re: 3 GB switch by John

John
Fri Aug 22 04:24:42 PDT 2008

What are your pagefile settings and how much RAM have you got in the
machine?

Mike wrote:

> Thats the problem with the internet..."everyones an expert". This was
> suggested in a post to help with out of memory (OOM) errors. At the end of
> the boot edit I was to add "/userva=2650" to help increase the stability of
> the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
> suggest?
>
> "Jerry" wrote:
>
>
>>Try adding /PAE instead.
>>
>>"Mike" <Mike@discussions.microsoft.com> wrote in message
>>news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
>>
>>>Hi all,
>>>
>>>Just a quick question. I have XP home with SP3 and I'm trying to apply
>>>the
>>>/3GB switch. I entered the correct lines in the boot.ini file using the
>>>system/advance/start up recovery settings/edit. I then saved the file and
>>>rebooted. After it re-booted I was told to look under the systems general
>>>tab and make sure it said "physical address extension". But it does not.
>>>I've rechecked the boot file and its typed exactly like I was instructed
>>>to
>>>type. Does anyone know what I did wrong? Does Home edition allow the
>>>/3GB
>>>switch? Thanks for the help
>>
>>
>>


Re: 3 GB switch by Mike

Mike
Fri Aug 22 05:45:00 PDT 2008

2 Gig RAM
"System managaged" page file

"John John (MVP)" wrote:

> What are your pagefile settings and how much RAM have you got in the
> machine?
>
> Mike wrote:
>
> > Thats the problem with the internet..."everyones an expert". This was
> > suggested in a post to help with out of memory (OOM) errors. At the end of
> > the boot edit I was to add "/userva=2650" to help increase the stability of
> > the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
> > suggest?
> >
> > "Jerry" wrote:
> >
> >
> >>Try adding /PAE instead.
> >>
> >>"Mike" <Mike@discussions.microsoft.com> wrote in message
> >>news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
> >>
> >>>Hi all,
> >>>
> >>>Just a quick question. I have XP home with SP3 and I'm trying to apply
> >>>the
> >>>/3GB switch. I entered the correct lines in the boot.ini file using the
> >>>system/advance/start up recovery settings/edit. I then saved the file and
> >>>rebooted. After it re-booted I was told to look under the systems general
> >>>tab and make sure it said "physical address extension". But it does not.
> >>>I've rechecked the boot file and its typed exactly like I was instructed
> >>>to
> >>>type. Does anyone know what I did wrong? Does Home edition allow the
> >>>/3GB
> >>>switch? Thanks for the help
> >>
> >>
> >>
>
>

Re: 3 GB switch by John

John
Fri Aug 22 06:14:23 PDT 2008

What are the Commit Charge readings (in the Task Manager)?

Is your "problem" application LARGEADDRESSAWARE? If it isn't the use of
the /3GB switch is for naught. What does the application vendor have to
say about memory management with their application?

John

Mike wrote:

> 2 Gig RAM
> "System managaged" page file
>
> "John John (MVP)" wrote:
>
>
>>What are your pagefile settings and how much RAM have you got in the
>>machine?
>>
>>Mike wrote:
>>
>>
>>>Thats the problem with the internet..."everyones an expert". This was
>>>suggested in a post to help with out of memory (OOM) errors. At the end of
>>>the boot edit I was to add "/userva=2650" to help increase the stability of
>>>the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
>>>suggest?
>>>
>>>"Jerry" wrote:
>>>
>>>
>>>
>>>>Try adding /PAE instead.
>>>>
>>>>"Mike" <Mike@discussions.microsoft.com> wrote in message
>>>>news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
>>>>
>>>>
>>>>>Hi all,
>>>>>
>>>>>Just a quick question. I have XP home with SP3 and I'm trying to apply
>>>>>the
>>>>>/3GB switch. I entered the correct lines in the boot.ini file using the
>>>>>system/advance/start up recovery settings/edit. I then saved the file and
>>>>>rebooted. After it re-booted I was told to look under the systems general
>>>>>tab and make sure it said "physical address extension". But it does not.
>>>>>I've rechecked the boot file and its typed exactly like I was instructed
>>>>>to
>>>>>type. Does anyone know what I did wrong? Does Home edition allow the
>>>>>/3GB
>>>>>switch? Thanks for the help
>>>>
>>>>
>>>>
>>


Re: 3 GB switch by Mike

Mike
Fri Aug 22 07:49:01 PDT 2008

The OOM error is linked to largeaddressaware. I have made sure the
largeaddressaware>2 gig "box" is checked in the .exe file for the simulation
(FSX). I have edited the boot.ini with the /3GB switch AND added
/userva=2650. So far I haven't had any issues...windows loads just fine
w/out errors...BUT...how do I know if the 3GB switch is working? He states
that I need to look to make sure I have "physical address extensions" under
the system general tab but it does not state this and you have replied "the
/3GB switch has nothing to do with this"...so I go back to my question...how
do I know the /3GB switch is working? Is there something under the system
info that states how much VAS I have selected and its being allocated?

"John John (MVP)" wrote:

> What are the Commit Charge readings (in the Task Manager)?
>
> Is your "problem" application LARGEADDRESSAWARE? If it isn't the use of
> the /3GB switch is for naught. What does the application vendor have to
> say about memory management with their application?
>
> John
>
> Mike wrote:
>
> > 2 Gig RAM
> > "System managaged" page file
> >
> > "John John (MVP)" wrote:
> >
> >
> >>What are your pagefile settings and how much RAM have you got in the
> >>machine?
> >>
> >>Mike wrote:
> >>
> >>
> >>>Thats the problem with the internet..."everyones an expert". This was
> >>>suggested in a post to help with out of memory (OOM) errors. At the end of
> >>>the boot edit I was to add "/userva=2650" to help increase the stability of
> >>>the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
> >>>suggest?
> >>>
> >>>"Jerry" wrote:
> >>>
> >>>
> >>>
> >>>>Try adding /PAE instead.
> >>>>
> >>>>"Mike" <Mike@discussions.microsoft.com> wrote in message
> >>>>news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
> >>>>
> >>>>
> >>>>>Hi all,
> >>>>>
> >>>>>Just a quick question. I have XP home with SP3 and I'm trying to apply
> >>>>>the
> >>>>>/3GB switch. I entered the correct lines in the boot.ini file using the
> >>>>>system/advance/start up recovery settings/edit. I then saved the file and
> >>>>>rebooted. After it re-booted I was told to look under the systems general
> >>>>>tab and make sure it said "physical address extension". But it does not.
> >>>>>I've rechecked the boot file and its typed exactly like I was instructed
> >>>>>to
> >>>>>type. Does anyone know what I did wrong? Does Home edition allow the
> >>>>>/3GB
> >>>>>switch? Thanks for the help
> >>>>
> >>>>
> >>>>
> >>
>
>

Re: 3 GB switch by John

John
Fri Aug 22 10:13:29 PDT 2008

Well, usually we would tell users to look for the /3GB switch in the
boot.ini file or to look at the SystemStartOptions value at the
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control key.

Otherwise you have to look at the pool resources. This can be done with
the kernel debugger or you can use WMI and query the MaxProcessMemory size.

Memory Management - Understanding Pool Resources
http://blogs.technet.com/askperf/archive/2007/03/07/memory-management-understanding-pool-resources.aspx

Memory Management - Demystifying /3GB
http://blogs.technet.com/askperf/archive/2007/03/23/memory-management-demystifying-3gb.aspx

Counter of the Week - Free System Page Table Entries (PTEs)
http://blogs.technet.com/cotw/archive/2008/04/07/symptoms-lack-of-free-system-page-table-entries-ptes-system-wide-delays-i-o-request-failures-and-low-on-paged-pool-memory-and-or-non-paged-pool-memory-on-32-bit-windows.aspx

Verifying the /3GB switch
http://www.windowsnetworking.com/kbase/WindowsTips/Windows2003/AdminTips/Admin/Verifyingthe3GBswitch.html

John

Mike wrote:

> The OOM error is linked to largeaddressaware. I have made sure the
> largeaddressaware>2 gig "box" is checked in the .exe file for the simulation
> (FSX). I have edited the boot.ini with the /3GB switch AND added
> /userva=2650. So far I haven't had any issues...windows loads just fine
> w/out errors...BUT...how do I know if the 3GB switch is working? He states
> that I need to look to make sure I have "physical address extensions" under
> the system general tab but it does not state this and you have replied "the
> /3GB switch has nothing to do with this"...so I go back to my question...how
> do I know the /3GB switch is working? Is there something under the system
> info that states how much VAS I have selected and its being allocated?
>
> "John John (MVP)" wrote:
>
>
>>What are the Commit Charge readings (in the Task Manager)?
>>
>>Is your "problem" application LARGEADDRESSAWARE? If it isn't the use of
>>the /3GB switch is for naught. What does the application vendor have to
>>say about memory management with their application?
>>
>>John
>>
>>Mike wrote:
>>
>>
>>>2 Gig RAM
>>>"System managaged" page file
>>>
>>>"John John (MVP)" wrote:
>>>
>>>
>>>
>>>>What are your pagefile settings and how much RAM have you got in the
>>>>machine?
>>>>
>>>>Mike wrote:
>>>>
>>>>
>>>>
>>>>>Thats the problem with the internet..."everyones an expert". This was
>>>>>suggested in a post to help with out of memory (OOM) errors. At the end of
>>>>>the boot edit I was to add "/userva=2650" to help increase the stability of
>>>>>the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
>>>>>suggest?
>>>>>
>>>>>"Jerry" wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>Try adding /PAE instead.
>>>>>>
>>>>>>"Mike" <Mike@discussions.microsoft.com> wrote in message
>>>>>>news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Hi all,
>>>>>>>
>>>>>>>Just a quick question. I have XP home with SP3 and I'm trying to apply
>>>>>>>the
>>>>>>>/3GB switch. I entered the correct lines in the boot.ini file using the
>>>>>>>system/advance/start up recovery settings/edit. I then saved the file and
>>>>>>>rebooted. After it re-booted I was told to look under the systems general
>>>>>>>tab and make sure it said "physical address extension". But it does not.
>>>>>>>I've rechecked the boot file and its typed exactly like I was instructed
>>>>>>>to
>>>>>>>type. Does anyone know what I did wrong? Does Home edition allow the
>>>>>>>/3GB
>>>>>>>switch? Thanks for the help
>>>>>>
>>>>>>
>>>>>>
>>


Re: 3 GB switch by Mike

Mike
Fri Aug 22 11:17:00 PDT 2008

I'll check it this evening...I appreciate the time and effort friend.

Mike

"John John (MVP)" wrote:

> Well, usually we would tell users to look for the /3GB switch in the
> boot.ini file or to look at the SystemStartOptions value at the
> HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control key.
>
> Otherwise you have to look at the pool resources. This can be done with
> the kernel debugger or you can use WMI and query the MaxProcessMemory size.
>
> Memory Management - Understanding Pool Resources
> http://blogs.technet.com/askperf/archive/2007/03/07/memory-management-understanding-pool-resources.aspx
>
> Memory Management - Demystifying /3GB
> http://blogs.technet.com/askperf/archive/2007/03/23/memory-management-demystifying-3gb.aspx
>
> Counter of the Week - Free System Page Table Entries (PTEs)
> http://blogs.technet.com/cotw/archive/2008/04/07/symptoms-lack-of-free-system-page-table-entries-ptes-system-wide-delays-i-o-request-failures-and-low-on-paged-pool-memory-and-or-non-paged-pool-memory-on-32-bit-windows.aspx
>
> Verifying the /3GB switch
> http://www.windowsnetworking.com/kbase/WindowsTips/Windows2003/AdminTips/Admin/Verifyingthe3GBswitch.html
>
> John
>
> Mike wrote:
>
> > The OOM error is linked to largeaddressaware. I have made sure the
> > largeaddressaware>2 gig "box" is checked in the .exe file for the simulation
> > (FSX). I have edited the boot.ini with the /3GB switch AND added
> > /userva=2650. So far I haven't had any issues...windows loads just fine
> > w/out errors...BUT...how do I know if the 3GB switch is working? He states
> > that I need to look to make sure I have "physical address extensions" under
> > the system general tab but it does not state this and you have replied "the
> > /3GB switch has nothing to do with this"...so I go back to my question...how
> > do I know the /3GB switch is working? Is there something under the system
> > info that states how much VAS I have selected and its being allocated?
> >
> > "John John (MVP)" wrote:
> >
> >
> >>What are the Commit Charge readings (in the Task Manager)?
> >>
> >>Is your "problem" application LARGEADDRESSAWARE? If it isn't the use of
> >>the /3GB switch is for naught. What does the application vendor have to
> >>say about memory management with their application?
> >>
> >>John
> >>
> >>Mike wrote:
> >>
> >>
> >>>2 Gig RAM
> >>>"System managaged" page file
> >>>
> >>>"John John (MVP)" wrote:
> >>>
> >>>
> >>>
> >>>>What are your pagefile settings and how much RAM have you got in the
> >>>>machine?
> >>>>
> >>>>Mike wrote:
> >>>>
> >>>>
> >>>>
> >>>>>Thats the problem with the internet..."everyones an expert". This was
> >>>>>suggested in a post to help with out of memory (OOM) errors. At the end of
> >>>>>the boot edit I was to add "/userva=2650" to help increase the stability of
> >>>>>the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
> >>>>>suggest?
> >>>>>
> >>>>>"Jerry" wrote:
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>>Try adding /PAE instead.
> >>>>>>
> >>>>>>"Mike" <Mike@discussions.microsoft.com> wrote in message
> >>>>>>news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>>Hi all,
> >>>>>>>
> >>>>>>>Just a quick question. I have XP home with SP3 and I'm trying to apply
> >>>>>>>the
> >>>>>>>/3GB switch. I entered the correct lines in the boot.ini file using the
> >>>>>>>system/advance/start up recovery settings/edit. I then saved the file and
> >>>>>>>rebooted. After it re-booted I was told to look under the systems general
> >>>>>>>tab and make sure it said "physical address extension". But it does not.
> >>>>>>>I've rechecked the boot file and its typed exactly like I was instructed
> >>>>>>>to
> >>>>>>>type. Does anyone know what I did wrong? Does Home edition allow the
> >>>>>>>/3GB
> >>>>>>>switch? Thanks for the help
> >>>>>>
> >>>>>>
> >>>>>>
> >>
>
>

Re: 3 GB switch by John

John
Fri Aug 22 13:42:49 PDT 2008

You're welcome.

John

Mike wrote:

> I'll check it this evening...I appreciate the time and effort friend.
>
> Mike
>
> "John John (MVP)" wrote:
>
>
>>Well, usually we would tell users to look for the /3GB switch in the
>>boot.ini file or to look at the SystemStartOptions value at the
>>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control key.
>>
>>Otherwise you have to look at the pool resources. This can be done with
>>the kernel debugger or you can use WMI and query the MaxProcessMemory size.
>>
>>Memory Management - Understanding Pool Resources
>>http://blogs.technet.com/askperf/archive/2007/03/07/memory-management-understanding-pool-resources.aspx
>>
>>Memory Management - Demystifying /3GB
>>http://blogs.technet.com/askperf/archive/2007/03/23/memory-management-demystifying-3gb.aspx
>>
>>Counter of the Week - Free System Page Table Entries (PTEs)
>>http://blogs.technet.com/cotw/archive/2008/04/07/symptoms-lack-of-free-system-page-table-entries-ptes-system-wide-delays-i-o-request-failures-and-low-on-paged-pool-memory-and-or-non-paged-pool-memory-on-32-bit-windows.aspx
>>
>>Verifying the /3GB switch
>>http://www.windowsnetworking.com/kbase/WindowsTips/Windows2003/AdminTips/Admin/Verifyingthe3GBswitch.html
>>
>>John
>>
>>Mike wrote:
>>
>>
>>>The OOM error is linked to largeaddressaware. I have made sure the
>>>largeaddressaware>2 gig "box" is checked in the .exe file for the simulation
>>>(FSX). I have edited the boot.ini with the /3GB switch AND added
>>>/userva=2650. So far I haven't had any issues...windows loads just fine
>>>w/out errors...BUT...how do I know if the 3GB switch is working? He states
>>>that I need to look to make sure I have "physical address extensions" under
>>>the system general tab but it does not state this and you have replied "the
>>>/3GB switch has nothing to do with this"...so I go back to my question...how
>>>do I know the /3GB switch is working? Is there something under the system
>>>info that states how much VAS I have selected and its being allocated?
>>>
>>>"John John (MVP)" wrote:
>>>
>>>
>>>
>>>>What are the Commit Charge readings (in the Task Manager)?
>>>>
>>>>Is your "problem" application LARGEADDRESSAWARE? If it isn't the use of
>>>>the /3GB switch is for naught. What does the application vendor have to
>>>>say about memory management with their application?
>>>>
>>>>John
>>>>
>>>>Mike wrote:
>>>>
>>>>
>>>>
>>>>>2 Gig RAM
>>>>>"System managaged" page file
>>>>>
>>>>>"John John (MVP)" wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>What are your pagefile settings and how much RAM have you got in the
>>>>>>machine?
>>>>>>
>>>>>>Mike wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Thats the problem with the internet..."everyones an expert". This was
>>>>>>>suggested in a post to help with out of memory (OOM) errors. At the end of
>>>>>>>the boot edit I was to add "/userva=2650" to help increase the stability of
>>>>>>>the simulation. Jerry, if your suggesting /PAE what amount of VAS would you
>>>>>>>suggest?
>>>>>>>
>>>>>>>"Jerry" wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>Try adding /PAE instead.
>>>>>>>>
>>>>>>>>"Mike" <Mike@discussions.microsoft.com> wrote in message
>>>>>>>>news:21F92416-3730-46C9-937F-B77E126E1035@microsoft.com...
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>Hi all,
>>>>>>>>>
>>>>>>>>>Just a quick question. I have XP home with SP3 and I'm trying to apply
>>>>>>>>>the
>>>>>>>>>/3GB switch. I entered the correct lines in the boot.ini file using the
>>>>>>>>>system/advance/start up recovery settings/edit. I then saved the file and
>>>>>>>>>rebooted. After it re-booted I was told to look under the systems general
>>>>>>>>>tab and make sure it said "physical address extension". But it does not.
>>>>>>>>>I've rechecked the boot file and its typed exactly like I was instructed
>>>>>>>>>to
>>>>>>>>>type. Does anyone know what I did wrong? Does Home edition allow the
>>>>>>>>>/3GB
>>>>>>>>>switch? Thanks for the help
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>