broke the rumble in my ps2 controller by smashing it on my keyboard for my ps2 and broke off a bunch of keys of the keyboard too. im not sure if i broke my old ati 9000 video card. i think i tried to OC without knowing what i was doing and i think put it up a couple hundred mhz lol, but im not sure if it actually oc'd but near the end of its life before we replaced it, it didnt work too well. i also killed a hdd i think. i hear funny noises in the case coming from a fan so i started hitting the case and shaking it. LOL. then there was this louder noise than got louder and louder then stopped. along with my pc. i killed the motor inside the hdd. other than that i dont know what else ive killed. oh. my old SMC router i fried. i would download stuff that was very large in size and leave it on for a day or two or i'd play games online and it killed one of the ports then i killed another. then it got to the point where the router would stop working for liek 10 min at least everyday.