Surprised that no one is making logical suggestions such as telling him to tell his parents that the PC is MASSIVELY outdated now and that instead of frying it over self greed he can donate it to someone who can use it? Seriously I was on a P4 when C2d's were the trend and my mom wouldn't let me upgrade too but that still didn't stop me from buying my own C2D system by selling old junk around the house (mostly my old junk
) and in the end I gave the P4 to a family near my house which didn't have a PC and their son was able to enjoy CS 1.6 on it with his friends on his low end connection.
Before you follow the "helpful" advice in this thread I want you to think long and hard about what you are about to do and think of whether you would want your future children to do what you are doing right now. Your parents probably spent good money on that PC you call trash right now and all you are thinking about it is setting it on fire like its nothing. The least you owe them is to put it up for a good cause, you could give it to an underprivileged family and make a child / teen happy instead.