Questioned about Physical Address Extension

I was just looking at my system information, and saw the physical address extension below my ram information. How come this is not present on all computers? For example, my desktop with AMD processor does not have this line below the amount of ram. Do all laptops have this info?

Thanks for any clarification.

 

PAE is a feature of newer Intel processors that allows 32-bit systems to address up to 64GB of RAM. It is software activated though, and AWE (Address Windowing Extension), the feature of windows that uses it, only kicks in if one specific program needs more than the 3GB natural limit, but seeing as we almost always have multiple applications open (so that we have a bunch that use up 2GB all together and one that is using 1GB, in an extreme example) none of the programs can go over since they aren't specifically requesting more than 3GB. It is basically useless because microsoft is retarded.

EDIT: You also see it in many 64-bit AMD processors, but it is more common to see it on Intel

 

So is it showing up in the system info because a program is requesting it or is it showing up there because a program could request it? It shows up while the computer is idle.

 

Becuase the processor has that ability. So basically because a program could request it.

 

So does your laptop have that posted in the system information?

 

I don't have it on mine

 

So should I worry that its there, or not? Can I get rid of it?

 

It is a feature, it isn't doing anything really.