Over the past couple weeks my computer has been shitting off randomly and just today I got super fed up and took a look inside, I dusted off my Gpu and then I turned the comp on without a side, after 15 minutes I touched my Gpu (after sterilizing my hands ) and it burned I have an HD radeon 6700 Gpu and it hs been fine until a week or two ago, anybody have any ideas for what I can do to fix this problem, oh yea and the fan on the Gpu wasn't spinning when I looked at it