The quickest method to identifying your console is to check the bar code directly under the 'Start' button. There are four basic models of the PSP: the PSP-1000, the original 'phat' version of the system that was released first the PSP-2000, the more easily accessible slim version released second the PSP-3000, a more secure slim model with nicer features, lighter weight and a microphone and the PSPGo, which doesn't use physical Universal Media Discs to play media. If you attempt to modify your PSP Slim without taking into account what type of hardware, like the motherboard, is compatible with modifications, you could end up disabling your hand-held.Since its release, the PlayStation Portable, or PSP, has had a number of upgrades to both its hardware and software capabilities.