xbox problem. Any suggestions?

[Quall999]

Well, my xbox is not broke.... yet. Whenever I turn it on, after 10 seconds or so, it smells like an electrical fire is about to occur, that wierd tranformer smell. Anyways, if I have it on for a minute or so, it gets heavier and heavier. It's bothering me and I think this is the beginning of a corrupted power supply. Has this happened to any one here and have you found a way to fix this?

Also, if I were to try and turn the power off, the fan would shutdown (and probably other items), but the xbox would still be on. I would have to go and unplug it to turn off. This really sucks. I dont want to have 2 xbox's with bad power supplies. Oh yah, my chip is off so i don't think it has anything to do with it (even though the problems accured after I installed).