hello guys i need an expert advice what could be the route of the issue that i am having since today the machine is dell inspiron 570 now the problem is after using it for 15 ~ 20 minutes the screen goes black and funs run at full speed i am not sure those are cpu fan or gpu but i heard fan noises like dust blower lol anyway after disconnecting the power i turned back on after few minutes it starts to work normal but again after 15 ~ 20 minutes i got no display