display clicked off during use, fan running loud
while in use the screen clicked to black, and the fan became really loud. I have turned it off and back on, no display, fan grows louder and louder. tried powering on w/ opt/com/P/R, but no change. Any ideas?
Connect to an external monitor - if it's black too you have a blown GPU/VGC or logic board issue. If you see a normal display the fault is in the internal (cable, controller, display) chain.
Once you've ruled the GPU in/out we can proceed further.
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