Changes

There are primarily two types of fat Playstation 1 power supplies: a 5-pin model, found in newer models (at least 7001 and higher) and a 7-pin model. Often, power supplies with the same number of pins are interchangeable, and in principle this may be a universal rule. It has been confirmed appears that the 7001, 7501, and 9001 power supplies are compatiblebut this may require further testing.