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iMac G5 Sleep Problems

This problem has just started happening in the past couple of weeks.

I always had used sleep mode on my iMac.

Now this is what happens when I put the account into sleep mode.

It goes to sleep, and the blinking sleep light works for about 1 minute. Then the light stops and the computer appears to fall out of sleep, into a quasi-shutdown mode. I can no longer wake the computer at this point.

Then the fan starts running, really, really fast and does not stop.

The only way to "fix" this is to force shutdown the system by holding my power button. Afterwards the computer starts up like always with no problems at all.

But the sleep problem remains.

Does anyone know what is going on here and how to fix this? I am still under my AppleCare warranty that does house calls (if I read it right 🙂 ). The first digits of my serial # is W8441.

I do not have anything new on the computer, last upgrade done was to add a Gig of memory about 5 months ago.

my best
-Ray B

iMac G5 1.8 GHz, Mac OS X (10.4.10)

Posted on Sep 30, 2007 5:31 PM

Reply
26 replies

Oct 1, 2007 11:13 AM in response to CArchivist

First, those hard shutdowns can cause directory corruption. Try using Disk Utility to do a Disk Repair, as shown in this link, while booted up on your install disk. Let us know what errors Disk Utility reports and if DU was able to repair them.
Maybe the repair will fix you sleep issue. If not try an SMU reset. This sometimes fixes them.

Cheers!
DALE

Oct 13, 2007 11:35 AM in response to CArchivist

It sounds like you have one of the imacs that fall under the repair extension program for power supply and logic board issues. You have to check two things, what is the emc number under the base of the machine next to the serial # and does the machine have als (ambient light sensor). If you have no als which would look like a little bubble sticking up from the bottom of the main body of the machine near where the ram is and if you have an emc number of 1989 on a 17" imac or 2008 on a 20" imac you should bring you computer to an apple store or a apple tech to get this taken care of. Let them know about the repair extension program. This is very common with G5 Imacs. Hope that helps.

Oct 13, 2007 10:04 PM in response to CArchivist

Apple Care really had no clue, all the tips the tech provided were either already given here or did not find a problem. Of course, the problem continues. What they want me to do is do a complete clean install of the software, which I am more than leary of doing that and trying to find the time as well to do the thing full blow is problematic too...

I will look into the see if I am eligable for the replacement matter.

Also, even if you have home service (tech coming to the home), they will not do it unless you can "prove" its not a software problem, which can only be done when with the reinstall of the operating system from scratch.

Sigh...

Oct 13, 2007 10:29 PM in response to CArchivist

I have been reading these boards and I am both happy that I am not the only one with this issue. I also see that this problem only seemed to develop for everyone not long after either a 10.4.10 upgrade or the most recent iTune update.

Why hasn't anyone at Apple noticed this and start looking into it? There are far too many people posting the same problem rather suddenly over these past two months on these boards. It cannot be coincidential.

my best
-Ray

iMac G5 Sleep Problems

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