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Old 04-22-2006, 10:22 PM   #1 (permalink)
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Default Configuring Windows 2000 to use more than 4Gb of RAM

Windows 2000 Professional and Windows 2000 Server support up to 4Gb of RAM. If you have a machine capable, and have installed Windows 2000 Advanced Server or Windows 2000 Datacentre Server, then maximum supported RAM increases to 8Gb and 32Gb respectively. However, a default installation will only recognise 4Gb.

To recognise more than 4Gb of RAM:

Using Windows Explorer, navigate to the root directory of your boot partition and select boot.ini.
Edit the file properties to unset the Read Only file attribute.
Open boot.ini in a text editor such as Notepad. The file will look something like this:
[boot loader]
timeout=5
default=multi(0)disk(0)rdisk(0)partition(1)\WINNT
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT="Windows 2000 Advanced Server" /fastdetect
There are two extra switches that can be added to the last line, after /fastdetect: /PAE:Enables support for more than 4Gb of RAM
/NOLOWMEM:Loads the entire system (drivers, pools, programs, etc.) above 4 GB.
Save the changed boot.ini and reset the Read Only file attribute.
Reboot the computer for the changes to take effect.
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