iMac not booting - black screen, no power light, ticking sound
My 2006 intel core 2 duo iMac is no longer booting. It was working fine up until about a week ago when I last used it. Nothing happens when clicking/holding/tapping/whatever the power button on the back. Screen is black, no power light comes on, no boot up sound.
One thing I notice is a low, ticking sound - sounds almost like the sound from an analog clock, but the ticking comes at irregular intervals. I can hear the sound as soon as put the power cord into the wall outlet, so I can hardly imagine it is coming from the hard drive, since the computer is not even turned on.
What could the problem possibly be?
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