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Windows 2008 R2 and PAE

Posted on 2010-09-24
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Last Modified: 2012-05-10
Hello

Does anyone know how I can find out if PAE is running on Windows 2008 R2 servers? I understand they are 64 bit anyway, so is there any point?
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Question by:kam_uk
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GKalosky earned 500 total points
ID: 33755819
PAE is for 32 bit only, so it is not needed on the Windows 2008 R2 servers because it is 64 bit as you know.
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by:GKalosky
ID: 33755831
If you want more information about PAE you can refer to this MS web site:

http://www.microsoft.com/whdc/system/platform/server/pae/paedrv.mspx
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by:kam_uk
ID: 33793446
Thanks guys, appreciate the answers.

I know it's not really needed on 2008 servers (R2), but does anyone know if it is even available? I just want to check that someone hasn't accidentally enabled it for whatever reason.
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by:GKalosky
ID: 33793482
If you read the article you would have seen the following so you could check if someone put it in the file to enable it.  There is no documentation that states you cannot enter this parameter, but it could be an invalid option if you tried to boot a system with this:


To enable PAE:

• Locate the Boot.ini file, which is typically in the root folder (for example, C:/) and remove its Read-Only and Hidden attributes.
 
• Open the Boot.ini file with a text editor, and then add the /PAE parameter to the ARC path, as shown in the following example:

multi(0)disk(0)rdisk(0)partition(2)
\WINNT="Windows ???? Datacenter Server" /PAE /basevideo /sos

 
• On the File menu, click Save.
 
• Restore the Read-Only attribute to the Boot.ini file.
 
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