A little black square square broke off my AMD Radeon HD 5500, it still works, I get some artifacting when oc'ing memory over 840mhz never got to use before it broke off as it was given to me and he found it in his garage I think. I am just wondering what its for. Something to do with the DVI port maybe? something to do with memory? btw this happened a long time ago I am just getting a new monitor so I'm wonderin if I should not get a DVI monitor (Location of black square on video card) (Black square that broke off)