Does it freezes if you don't play a game, or on the dashboard if left running for 5 min. Ill bet it does with . If that's the case then the C.P.U. and the G.P.U. have lost connections and will need to be re-soldered re-flowed back to the board .
it sounds like an error with you gpu chip you need to google x clamp repairs and buy a x clamp repair kit from ebay this should solve the graphics error
My xbox takes forever to load up and when it finally gets past the xbox logo screen it takes me to...
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My xbox takes forever to load up and when it finally gets past the xbox logo screen it takes me to the dashboard than says that i dont have any storage device connected whatsoever no profiles no saved data at all. than if i just try to play the game without signing in or anything it freezes at a black screen but my controller is still responsive and after awhile my xbox freezes. oh its an xbox 360 by the way.