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This is an old revision of PAE made by darkcity on 2013-02-23 11:11:27.

 

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HomePage > Components and HowTos > Memory and Storage

PAE (Physical Address Extention)

Physical Address Extension (PAE) is a feature to allow (32-bit) x86 processors to access a physical address space larger than 4 gigabytes. This includes RAM {Random Access Memory} and memory mapped devices.

Sometimes referred to as PAE-Highmem.

If the computer has more than 4GB RAM use the PAE versions of Puppy
If the compute has 4GB or less RAM memory, still use the standard PAE version if the CPU supports it. Only if the CPU does not support PAE use the non-PAE version (see No Excute).

There are versions of Puppy Linux that have a PAE version available, including Puppy 5.3 Slacko and PrecisePuppy.

No Excute
PAE is not only more physical address space but also important for the "no execute" feature which disables execution of code that is marked as non-executable.

Therefore, the PAE kernel should be used on any systems that support it, regardless of the amount of main memory.



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