The subject behavior will occur on some motherboard chipsets.
To workaround this problem:
1. Start / Run / Winmsd.exe / OK.
2. Select System Summary.
3. View the Total Physical Memory item in the right-hand pane.
To resolve this problem, you can add the /PAE switch to the end of the line that starts your operating system in the %SystemDrive%\Boot.ini file:
1. Open a CMD.EXE window.
2. Type attrib -r -s -h %systemdrive%\boot.ini and press Enter.
3. Type notepad %systemdrive%\boot.ini and press Enter.
4. Add the /PAE switch to the end of the line(s) that starts Windows Server 2003.
Example:
if your %systemdrive%\Boot.ini contains:multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windows Server 2003, Enterprise" /fastdetect
Change it to:
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windows Server 2003, Enterprise" /fastdetect /PAE
5. On the file menu, press Save.
6. On the file menu, press Exit.
7. Type attrib +r +s +h %systemdrive%\boot.ini and press Enter.
8. Type exit and press Enter.
