iMac never returns from its sleep mode.

Hi Pedro Perez-

There is only one extended coverage period available from Apple.

If it is the memory it will be covered by Crucial's warranty.

Luck-

-DaddyPaycheck

The only other warranty you can get from Apple after AppleCare expires is ProCare.

It's not really a warranty, Baby, you still pay for repairs. It only gives you priority with the Genius bar and a free cleaning every year. Otherwise, you're still liable for everything.

There's no need to get Apple memory, what you get from [macsales.com] will be just as good. Make sure you get the lifetime guarantee and you should be fine. However, it may not be the memory, in which case, take it in again and have them look at it another time.

"you still pay for repairs."

Not for minor repairs (software related). At least at the AS in my area. I haven't checked with my local vendor yet.

I really think it depends on the AS.

Recently, there was a post (which I can't find) where the AS techs paid for hardware repairs. The user's AC ran out & he only had ProCare coverage. Apparently, that city's AS went over & beyond what the coverage called for.

Well - I am running into the same problem with my iMac G5. And I don't believe that it has anything to do with the memory. Does anybody have any idea where I should begin to look for "the problem"? If I put the computer into the sleep mode, it simply shuts off.....most of the time. Though sometimes, it will actually go into the sleep mode and the power light will flash as it used to do. I cannot help but wonder if this is some software issue with one of the upgrades. I am running Tiger 10.4.11. I didn't have any of these problems until a few weeks ago. I have just ordered Disk Warrior to see if there is something that can be corrected with that software. But so far, using the latest version of ONYX, the hard disk checks out fine. Everything is as optimized as it can be with ONYX...though the Warrior sample software tells me that the disk is still fragmented 36%!!! Go figure that one out? How can two software programs be so far off regarding the state of the optimization? Something is not quite right.....looking for ideas.....

Perhaps you should get your own copy of DiskWarrior, but it sounds more like a power supply or motherboard problem. I don't remember whether you reset your PRAM? It's worth a try.

Thanks Miriam - I tried that. After reading everything I can find on the Internet and in here, I have done all of the following, with no success: Reset the SMU, Reset the PRAM (which on my iMac G5 only makes TWO bongs when it starts up, unlike the three that we are all used to...found this fact on an obscure Apple document), Used Tiger Startup Disk to repair all permissions and verify the disk, which at first appeared to fix the problem. The computer worked exactly twice correctly. Then it went back to its current antic. I also opened it up, as suggested by one online suggestion, and blew the dust out of it. I also deleted the com.apple.PowerManagement.plist file and restarted. No luck with any of these efforts. I am waiting for my CD of Disk Warrior to show up. Unfortunately, it takes about two to three weeks to arrive. Somehow, I do not think that it will fix the problem. It's gotta be something else. I also disconnected all USB items that are not in use, though I don't know why this should matter. The computer worked fine with everything connected up until very recently. This is so darned frustrating!!! I'm still searching for a definitive answer. By the way, everyone keeps mention "overheating". Does anybody know what the temperature Celsius or Fahrenheit at normal is? I have iStatPro that gives me drive and processor temps. But I have no idea what the benchmarks are. Same thing with the drive speeds..... I thought that Macs were so darned user friendly. This is pretty discouraging.....

Why don't you post your iStat numbers (Farenheit, please). My recollection is that none of them should be over about 140 or so.

Hi Again....

Right now....The CPU is at 146F, The Hard Drive is at 122F, The HD: Macintosh is at 126F. The CPU sometimes goes up to 165F but the RPM of the fans go up and that's if I've got a lot of memory intensive applications or videos running.

I checked the iMac G5 Repair Extension program and while I do not exhibit the exact symptoms that they describe, this is a power issue and my serial number falls within the range of computers covered. Unfortunately, I am over the three year period as this was purchased in January 2005. I just want to rule out everything that I can before I take it to an Apple Repair Shop. I just don't want it to completely die on me one day. Have backed everything up on a regular basis just in case....

Thanks again for any insights that you might be able to provide....I'm running out of ideas....

Your temps are perfectly normal and the fans seem to behave normally as well. You could try call Apple Customer relations and ask them to extend the program 800-767-2775. Good that you are backing up, and I'm afraid that you will have to ultimately take in.

Not waking from sleep was the first symptom that I had as my G5 2nd gen iMac started to fail. It at the Apple Store right now, anticipating a new motherboard if we can figure out who is going to pay for it (AppleCare, Apple Corp, or me).

DiskWarrior, Tech Tools Pro 4, and Disk Utility did nothing to rescue this machine. I also got different S.M.A.R.T. status reports from the different software which I found curious.

this happened to my iMac, and I haven't read what everyone else said in their post above mine, but we had to get a new power supply. It was 175 bucks, but it was under warranty somehow (it seems like we bought it forever ago!).