kernel downgrade

[Petrus de Calguarium]

Conrad Meyer wrote:

> Unless you changed it yourself, your hardware is still i686. If your i686
> machine has PAE, get the i686-PAE kernel.


How do I tell if I have PAE. (No, I didn't change the hardware, but yum used 
to install i686 kernels and now it only installs i586 kernels; I checked the 
repo and there no longer is a i686, except for PAE, as you said).