On this board there is a program called 5x5 that is a basic a standard 3 day split, one body part a week, and uses the compound movements in a 5x5 scheme.
There is a very famous workout developed by Bill Starr 30 years ago that is what the majority of the world considers to be the '5x5' when someone mentions that name. A better source for this workout is here along with the other links I sent you:
http://forum.mesomorphosis.com/forumdisplay.php?f=3. There is a plethora of information and several programs drawn up by one of the finest strength coaches on the planet. Do not confuse what is referred to as 5x5 here with this workout. There is no similarity.