Q197513: Windows NT Memory Limitations

Article: Q197513
Product(s): Microsoft Windows NT
Version(s): WINNT:4.0
Operating System(s): 
Keyword(s): kbenv
Last Modified: 27-FEB-1999

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The information in this article applies to:

- Microsoft Windows NT Workstation version 4.0 
- Microsoft Windows NT Server version 4.0 
- Microsoft Windows NT Server, Enterprise Edition version 4.0 
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SUMMARY
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Windows NT is limited to four gigabytes (GB) of random access memory (RAM).

MORE INFORMATION
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Normally, each program is allocated two GB of RAM by the Windows NT kernel when
the program is loaded. Windows NT Server Enterprise Edition makes use of 4
Gigabyte Memory Tuning (4GT). This allows programs to use one more GB of RAM,
increasing the memory available to the program to three GB.

For additional information about 4GT, view the following Microsoft Web site:

  http://www.microsoft.com/ntserver/NTServerEnterprise/exec/overview/WindowsNTEnterpriseFAQ.asp

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Keywords          : kbenv 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400xsearch kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400xsearch kbWinNTS400
Version           : WINNT:4.0
Issue type        : kbinfo

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