This kind of book was written for the latest system in 1996, which is now completely obsolete. The cases and part arrangements are different, the parts themselves 5-10x as powerful now, and the OS is not even worth talking about. If you're interested in knowing about and upgrading the bowels of your home relic, buy this book by all means. HOWEVER, this is not written for the high performance gaming machines and entertainment systems that grace our society nowadays. I recommend that in that case you just ditch the antiquity, buy a new case, an up to date manual, and buy all the modern components you need.