Kernel - PAE vs. non-PAE

Steven F. LeBrun steven at
Wed Jul 1 01:27:01 UTC 2009

When I installed F11 on my Toshiba laptop, it installed the PAE version 
of the kernel.  I am assuming that my laptop has a CPU with Physical 
Address Extensions functionality and can therefore address up to 64GB of 

My laptop only has 3 GB installed.  Can anyone explain the pro's and 
con's of using the PAE version of Linux kernel instead of the non-PAE 

Would the PAE version of the 32-bit Linux Kernel see 4 GB of memory if 
it was installed where Vista 32-bits only sees about 3GB?  For that 
matter would the non-PAE version see the full 4 GB?

   Steven F. LeBrun

Quote: /"There are 10 types of people in this world, those that 
understand binary and those who don't."/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the fedora-list mailing list