Currently Being ModeratedNov 20, 2012 7:04 AM (in response to Fred Wu)
Currently Being ModeratedNov 20, 2012 7:23 AM (in response to Fred Wu)
Q: Do you have any upgrades to hardware like PCIe storage controller installed?
Sleep and shutdown issues are easy enough to find posted. Waking from sleep issues, trouble powering up,Troubleshooting: My computer won't turn on
If your Macintosh computer won't turn on, here's how to troubleshoot it. Please keep in mind that although your computer may display similar symptoms that prevent it from showing video, this article discusses what to do if the computer won't turn on, meaning that when you press the power button:
- You don't hear a startup chime.
- You don't hear any fan or drive noise.
- The power button or power indicator doesn't light up at all.
- You may hear a startup chime.
- You may hear fan or drive noise.
- You may see the power button or power indicator light up.
If any of these conditions occurs, see Troubleshooting: My computer has no video instead.Isolating Issues in Mac OS
Some stay with or dual boot 10.6.8 (Rosetta, legacy apps, more compatible and fewer issues) running 10.8.2 seems to cause trouble for some that go back to or dual boot both 10.6.8 (any Mac Pro can use to boot from) along with 10.8.x (to have current apps, security updates, support for iDevices and such).
Currently Being ModeratedNov 20, 2012 2:44 PM (in response to The hatter)
Thanks, hatter. There is nothing installed that didn't ship with the Mac Pro, and nothing is attached right now other than the USB Apple keyboard. The specific link in your reply is not really relevant to me as the computer will start up fine once it's completely shut down. It just isn't getting to that point unless I hold down the power button.
Currently Being ModeratedNov 20, 2012 6:46 PM (in response to Fred Wu)
An appointment at the Genius Bar for an evaluation is FREE, regardless of warranty status. If repairs are needed, you are under no obligation to have them do them. If possible, Apple wants you to be a happy customer.
Your time with the genius may not be "exclusive". It is more and more common for them to be servicing overlapping customer appointments to make use of "dead time" while diagnostics run, software downloads, and re-installs are happening.Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
Currently Being ModeratedNov 20, 2012 7:04 PM (in response to Grant Bennet-Alder)
Thanks, that's good to know. I just realized, actually, that it won't restart either. It does the same thing where the screen goes blank like it's about to chime and restart, but the chime never comes. Instead the power light remains on and the machine won't respond to anything until I hold the power button down to force shutdown. No spinning dots on screen or anything.
Currently Being ModeratedNov 21, 2012 6:17 AM (in response to Fred Wu)
Interesting thing, I decided to reinstall Mountain Lion yesterday so I booted up to the recovery partition, and after it finished downloading all the necessary files, it rebooted to start the installation and that went just fine, so it IS capable of rebooting. After the reinstallation, though, I still can't reboot or shut down from within Mountain Lion, even after creating an entirely new account. I might have to try a clean install if I can figure out how to do it. The restore partition did not give me that option.
Nobody has any idea what is going on? If it can reboot from the recovery partition, it seems like it is more likely to be a software problem than a hardware problem, correct?
Currently Being ModeratedNov 21, 2012 7:28 PM (in response to Linc Davis)
Hi, Linc - Thanks for your help. I took your earlier advice and brought the Mac Pro in to the Apple Store after backing up my personal files. They ran some diagnostics and said the hardware seems to be fine, so we did a clean install of Mountain Lion and everything is back to working the way it should. Don't know what I might have done to mess up the system files. A simple reinstall didn't work, but erasing the boot drive and then installing from scratch did the trick! Thanks to everyone for their input!