If you can use SATA, do so, ide is old tech (though still useful).
If you use a SATA and a PATA (ide) one will not be the master of the other, they will be independant of each other.
Are you adding a drive for data or because you want to install an operating system ?
Anyway, we need more information.
You computer needs to be able to support SATA.
If you want, download this tiny utility..
http://www.cpuid.com/cpuz.php
Unzip it and run the cpuz.exe.
Go to the about tab and save the html report, open the report and copy the contents into this thread.
This will show what mainboard your using and other useful stuff.