chimes once, no picture, fan runs all the time
Has power, chimes one time, no display, fan at top of machine runs constantly.
power / sleep light stays on all the time
Thanks,
Michael Bluestein
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You should connect to an external monitor and see if that display works. If it doesn't it points to video card/chip problems. If it does then run your AHT (Apple Hardware Test) disk it can tell you more about what might be wrong. Also see these Answers
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