/PAE swtich not working on XP SP2

[N.]

I have a new machine that has 4GB of RAM. The O/S is only seeing 3GB while
the BIOS sees 4GB.
I added the /PAE switch to my BOOT.INI file and rebooted only to see the O/S
was still reporting 3GB.

I have read other posts that mention an issue with the PAE setting and XP
SP2 but these posts were pretty outdated.

Are there any updates or known issues on this ?

Any assistance on this issue would be appreciated.

Thanks
Nick

 

[Tom Porterfield]

I have a new machine that has 4GB of RAM. The O/S is only seeing 3GB
while the BIOS sees 4GB.
I added the /PAE switch to my BOOT.INI file and rebooted only to see the
O/S was still reporting 3GB.

I have read other posts that mention an issue with the PAE setting and XP
SP2 but these posts were pretty outdated.

Are there any updates or known issues on this ?

Any assistance on this issue would be appreciated.

See this article for info on why the system is reporting memory as it is:

The amount of RAM reported by the System Properties dialog box and the
System Information tool is less than you expect after you install Windows XP
Service Pack 2
http://support.microsoft.com/kb/888137

 

[Jerry]

Add the /3GB switch to boot.ini also.

 

[John John]

I don't think that works with Windows XP and even if it does it does
nothing to address the issue at hand. Users should NOT use this switch
unless they want to limit usable memory to the operating system to 1 GB
and make 3 available to the applications. I think the switch works on
server systems only.

John

 

[Bob I]

idon't see OP, but here is this.
Available switch options for the Windows XP and the Windows Server 2003
Boot.ini files
http://support.microsoft.com/kb/833721/en-us

 

[John John]

I don't Know how old or current this is but seem to have been put out
for Server 2003:

How to Set the /3GB Startup Switch in Windows
http://www.microsoft.com/technet/pr...9c7-708c-43bf-b877-e14ae443ecbf.mspx?mfr=true

Maybe Windows XP SP# does it, I don't know.

John

 

[Tim Slattery]

Add the /3GB switch to boot.ini also.

We've been over this. That switch has NOTHING to do with RAM.