I need some computer help for my Mac.

[TheMightyFavog]

I got an old G5 iMac, last of the PowerPCs. Ever since a recent power outage, I've been having problems with sleep mode. Either it goes to sleep, and I can't get it out of sleep mode, or whenever I try to put it to sleep from the menu, I keep getting the beach ball and it won't go to sleep.

Anybody have any advice for me? Apple tech suppot's no help as the warranty's long since expired, and I don't have the 50 bucks it would cost for them to set up a tech support line.

[Twillig]

1. No idea.

Check the apple support forums

http://discussions.apple.com/index.jspa

[Moondog]

2. My first shot would be to run a permissions / repair scan

followed by a reboot. If that didn't do it, I'd run Onyx (free download) and see what's what. Let it fix whatever it finds. If that didn't do it, I'd re-install whatever version of OS X you're using, go online to get whatever updates to the OS there are out there, and reboot. If all that still didn't do it, I'd be stumped, and would pay the money for a techie, or throw in the towel and upgrade the whole system. But I'd probably nurse my existing system along until the next OS upgrade comes out and then buy new hardware.

[TheMightyFavog]

3. Onyx won't work for me.

I'm running 10.4.9, not 10.5

[TheMightyFavog]

4. Would I have to back up everyting if I have to reinstall my OS?

[TheMightyFavog]

5. I fixed it.

I did some digging, found a suggestion to reset the SMU, and it fixed the problem.