custom php.ini problem

I am trying a custom php.ini following the wiki exactly yet I get a internal server error after I set the .htaccess file on any php file.

AddHandler php-cgi .php
Action php-cgi /cgi-bin/php.cgi

That is what exists on my .htaccess file

My chmod are all set correctly

should it be

AddHandler phpFive .php
Action phpFive /cgi-bin/php.cgi

Tried that just now, same results