Change fastcgi_phpini_path in Installer conf File opensuse110.conf.php
Folder: ispconfig3_install/install/dist/conf
Files: opensuse110.conf.php opensuse112.conf.php
OS: Opensuse
Line 100
Change $conf['fastcgi']['fastcgi_phpini_path'] = '/etc/php5/cgi/';
To: $conf['fastcgi']['fastcgi_phpini_path'] = '/etc/php5/fastcgi/';