What is Physical Address Extension (PAE) and how do I enable it? Print
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PAE stands for Physical Address Extension. PAE allows Windows 2003 systems to extend the memory range from the 32bit limit of addressable 4GB space to 64GB addressable space. This is a flag administrators can set as a boot option to enable 4 additional address bits in the
processor.


Enabling Physical Address Extension(PAE) requires a flag to be set in the boot.ini file.


Edit the boot.ini

  1. Click Start
  2. Click Settings - Control Panel- System
  3. Click Advanced
  4. Click Settings - Startup and Recovery
  5. Click System Startup
  6. Edit
  7. Add the /PAE switch.
  8. Reboot the server

 

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