My IMAC seems to have died after power surge. It shut down and won't start. What shall I do?

my IMAC seems to have died after power surge. It shut down and won't start. What shall I do?

I would recommend you try an SMC reset at this point:
Resetting the System Management Controller (SMC)
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
If that fails to solve it, it is probable that the power surge damaged some of your iMac's hardware components, and will need to be repaired at an Apple Authorized Service Center.

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As I understand it you are not able to turn your phone on, and the power button doesn't work so you cannot turn it on that way. You may be able to get it back on by putting it into Recovery Mode, which only requires the USB connection and a working Home button.
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Connect iPhone to Wall Charger for 10 minutes, it may turn ON itself. If still nothing, keep on charger and Reset, hold both home and power buttons for about 20 seconds until the iPhone begins to start.

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If you restored to factory settings/new iPod via iTunes (Not via Settings>General>Reset>Erase all Content and Setting) and still have the problem that indicates a hardware problem.
Make an appointment at the Genius Bar of an Apple store..
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Ok, to copy the Drive from one to another, get carbon copy cloner to make an exact copy of your old HD to the New one...
http://www.bombich.com/software/ccc.html
Or SuperDuper...
http://www.shirt-pocket.com/SuperDuper/
Believe it or not, anything on the Desktop uses 3 times the Resources of the Mac than if stored elsewhere, I can note a slowdown from just 30 items on the Desktop on a really fast Mac, so the less the better on the Desktop.
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http://www.macupdate.com/info.php/id/15667/applejack
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applejack AUTO
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At least it'll eliminate some questions if it doesn't fix it.
The 6 things it does are...
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
Trash old Log files.
First reboot will be slower, sometimes 2 or 3 restarts will be required for full benefit... my guess is files relying upon other files relying upon other files! :-)
Disconnect the USB cable from any Uninterruptible Power Supply so the system doesn't shut down in the middle of the process.

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Ops I replied to myself in error.....
Tom:
I performed the steps indicated but this morning when I clicked the mouse and hit the space key and clicked the track pad again as before nothing happens.
I hold the power button for a few seconds and the screen fills as if the computer was normally awakened but it is locked up.
Then I have to shut it down with the power button and then power it up as a reboot.
Not good...SMC reset didn't work....Throughout the day yesterday I put the computer to sleep and woke it up normally. It seems to be a overnight problem.
Am I going to have to shut it down everynight?
Jim

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I had this imac 27" two years back(leopard 10.5.8) and no problem was encountered so far! (thanks 4that),i always made an update as far to snow leopard 10.6.8. Unfortunately when i did some application /downloading,the system was off and when i turn it On the logo of an apple only came.So what i did is to start all over again,now i am two years old back with Leo-10.5.8,My problem is i cannot install my snow leopard,it reads that i have to clean tha disc which i did and thru utility disc.Any help please and i really appreciate to every1 helping me to solve the problem.I will keep in touch.
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I'm unsure if this is the right place, but our iMac just crashed for the second time. Here are some details:
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2. I've looked all over for help, but all I keep seeing is reports of the same thing - which is highly annoying.
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This is the formal procedure for doing an SMC reset (disconnecting from power and reconnecting)
http://support.apple.com/kb/HT3964
so be sure you followed it precisely, instead of just unplugging it. Also, while doing this procedure, you should disconnect ALL cables. If you have been using a crowded or old power strip, connect it directly to the wall outlet, at least initially for this test. Power it up with nothing connected except for the power cord. If it starts up properly, connect just your keyboard/mouse and use it that way for a while. If the iMac is working properly at this point, you should also reset PRAM
http://support.apple.com/kb/HT1379
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http://support.apple.com/en-us/HT201295
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panic(cpu 1 caller 0x124fc5b): "AGC GPU REGISTER RESTORE FAILED : rdar://7254528"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-2.8.63/k ext/AGCPowerManagement.cpp:849
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My IMAC seems to have died after power surge. It shut down and won't start. What shall I do?

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