OS X V10.7 Lion :: IMac Constantly Restarting - Screen Just Stays Black

Feb 18, 2012

I have a 24inch iMac 3.06ghz and seems to be stuck restarting. It will not get to the any screen (just stays black) and constantly restarts, the chime seems to get quieter each time, after about 6 times it comes back to full volume but will not get any further in the start up process.

I restarted it myself because the screen was flickering very quickly and seemed to freeze (this is the first time I have encountered that). I had to power down by the button at the back, then restart using the power button and now won't start up. All software fully up to date. Running Lion.

Info:
iMac, Mac OS X (10.7)

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Info:
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Apr 1, 2012

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Info:
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Info:
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Info:
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I have tried: Unplugging all peripherals, with the same result.
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Info:
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Info:
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Info:
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[code]...

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