Windows XP 2GB physical RAM limit work around

change the boot.ini file to something like this:

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional"
/fastdetect /usepmtimer /NoExecute=AlwaysOff

the /NoExecute=AlwaysOff is the section to watch
this option will disable all microsoft windows xp hardware limitation such as memory limits (4GB should be supported if hardware support it of cause)
some reduction in memory could occure 3GB ~ 2.5GB or so.
there could be some fixes to this issue...