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This is an old revision of PAE made by darkcity on 2013-03-07 14:55:41.



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.

When to use a PAE version of Puppy
If the (32-bit) computer has-
  • more than 4GB RAM, then the PAE version is required to be able to access the whole memory.

Puppy Version
There are versions of Puppy Linux that have a PAE version available, including 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.

PCs MUST have PAE to boot a PAE distro. PAE is built into the system's CPU. Non PAE compatible processors include some of the Intel Atom range.
Not all applications are compatible with PAE.

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