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This evening while browsing Facebook on Chrome my iMac froze. No spinner and no mouse action.
Restart with the power button gave the start-up sound and you can hear the disk ratlle. That's it.
No sign of life on the screen. Pressing a key gives a sound but nothing happens.
It's an Intel iMac 17" dualcore 1.8ghz. Last month I replaced one of the 512mb cards for a 2gb.
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Posted: 2012-11-30 00:14:00
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Hans book a Session with a Apple rep
Or call them first
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Posted: 2012-11-30 01:10:20
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Correction, it's 2ghz
No luck with command, option, p, r.
No luck with command, option, o, f.
Sound comes up but nothing on the screen.
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Posted: 2012-11-30 10:40:00
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Hope you have an up-to-date Time Machine backup.
Try shutting it off, unplug, press the power button (yes, I know it's unplugged, this drains all residual capacitor power), leave it off for about 10 min, plug it in again, then turn it on.
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Posted: 2012-11-30 18:03:00
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Everything is save in timemachine.
I bought a cable to use a second screen. Again, no luck. Maybe that has to be turned on in prefferences? For me, the extra monitor says; "'No Input Signal''.
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Posted: 2012-11-30 20:59:55
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Watched some YouTube videos about opening an iMac. That is not difficult but what to look for is the question. Screen? Video are?
**work in progress **
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Posted: 2012-12-01 09:56:00
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Does it boot from the OS X installation DVD? If so, see if the hard drive is visible in Disk Utility.
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Posted: 2012-12-02 18:53:56
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it does boot. I can hear that. Screen does not turn on, I attached a 2nd screen but that one says "no input signal"
I'll call apple tomorrow, maybe they can see what's the problem. Graphic processor?
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Posted: 2012-12-02 19:36:00
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Could be that your screen backlight is dead, or the screen itself.
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Posted: 2012-12-03 03:42:17
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Had this exact same problem with my iMac about an year ago. Was covered under my AppleCare protection plan. They had to replace the mother board. Working fine since then.
Advice - use a surge protector or a UPS to connect your iMac to the mains.
-Oog.
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Posted: 2012-12-03 03:58:55
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