I got this mac and it seems to overheat, one transistor burn out(still get ultra hot), and pc shuts down after 15 min becouse it gets so hot (area around graphic chip). So i dont know which transistor is this and if i replace it if this will help to mac. I also noticed that computer says no disk but disk is spining and worked in other computer. Is this transistor maybee in conection of disk controler?
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