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iMac will not boot

by jh12838 / February 16, 2011 6:25 AM PST

I have a brand new iMac 24" screen, a week old. The computer will not start up. It worked for two days, then shut itself down. I pushed the start button, would not boot. I unplugged, let it sit overnight, I pushed start button, it started up. I left it on for a few hours, then tried to restart, it would not boot again. The next day, it started up, i left it alone all day to return to find a blank screen and it will not respond to mouse or keyboard. I have unplugged again, then relighted, will not boot! Is there a fix to this or should I just return it??

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If the store you purchased it from is close,
by mrmacfixit Forum moderator / February 16, 2011 8:17 AM PST
In reply to: iMac will not boot

take it back.

They may tell you that Apple has responsibility, the warranty, but you may be able to talk them into taking it back.
If not,

Get on the phone to Apple and explain the problem to them.

Do it quickly as Apple does not like DOA and the longer you wait, the less likely you are to get a replacement rather than yours repaired


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I would agree
by Jimmy Greystone / February 16, 2011 9:48 AM PST
In reply to: iMac will not boot

I would agree, take it back, though Apple hasn't made a 24" model for over a year now, so you must have bought this as a refurb somewhere or mistakenly put 24" when you meant 27". If it was from Apple, they will give it a one year warranty, if it was from a retail store then there's usually a return period of like 30 days, and I'd suggest you exercise it.

Offhand, it sounds like either a power supply or logic board issue, but kind of hard to tell without being able to look at the thing. In either case, you'll need someone else to fix it for you.

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Thing you might try before bringing it back.
by marclar83 / March 25, 2011 8:10 AM PDT
In reply to: iMac will not boot

Hi, I'm not sure what you have done with your iMac so far, but I had similar issue with the very first I got and here's few thing they will try to do before trying to repair it.

1) Reset both PRAM and SMC

Reset PRAM:

Reset SMC:

2) Verify your Hard Drive

2.1)Place your Mac OS X DVD in your DVD drive.

2.2) Power on iMac and immediately press and hold the c-key until the language screen appears.

2.3) From Mac OS X install Disc, Open Disk Utility

2.4) Select your Macintosh HD Partition (or your Mac OS X partition) and in the section "First Aid" Try to "Verify/Repair Disk" and "Verify/Repair Disk Permissions".

3) If it fail, try to boot in Safe mode and repair your permission from there (same way as 2.3 and 2.4)

Safe Mode:

4) Bring it back to Apple for Support.

If this ds not work try starting up in Safe mode, then run once in Safe mode you can run Repair Permissions and Verify/Repair Disk form Disk Utilities.

Safe Mode:

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While the intent is noble
by Jimmy Greystone / March 25, 2011 11:25 AM PDT

While the intent is noble there's a few things to note here.

First, the question was asked over a month ago, and the person doesn't appear to have been back. Odds are, they aren't coming back.

Second, I know the chestnuts of resetting the PRAM and SMC are old favorites, but they have nothing to do with this problem. And by leaving the system unplugged overnight, they effectively reset the SMC anyway.

Third, if you're going to run disk utility from the install DVD, you may as well just run a repair operation rather than verify. Repair includes everything in the verify operation, PLUS it attempts to fix things. However, it seems very dubious that this is in any way related to the problem.

Your intent is well taken, and encouraged, but you need to be a bit more than a one trick pony. Any first line tech support agent is going to suggest pretty much all of those things. Generally speaking, our "job", for those of us who choose to take it upon ourselves, is to be able to go beyond that. What's the point in coming here if they can get the same advice faster by calling Apple's support line? The inclination to help is good, keep that, but maybe hang back a bit until you have developed your skill level beyond just posting some Apple KB articles on Troubleshooting 101.

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