3G option in boot.ini

[Guest]

I'm trying to chnage the space given to the user in boot.ini. It looks like:
[boot loader]
timeout=15
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="XP full 3GB setting" /3GB
/fastdetect /NoExecute=OptIn
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="XP 2300" /3GB /USERVA=2300
/fastdetect /NoExecute=OptIn
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="XP 2500" /3GB /USERVA=2500
/fastdetect /NoExecute=OptIn
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="XP 2800" /3GB /USERVA=2800
/fastdetect /NoExecute=OptIn
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
Professional" /fastdetect /NoExecute=OptIn

Unfortunately, the only option that works is the regular option. Any
suggestions?

 

[Mark Dormer]

I assume your trying to boot the same copy of XP with different parameters

Change the value partition(2) to partition(1) in all those lines.

These options will have no effect unless the applications you run are also
/3GB aware.
Not many applications need or are written to use the extra address space.

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

http://support.microsoft.com/?kbid=316739

Regards
Mark Dormer