Mac OS X 10.5: Computer starts up unexpectedly at the same time each day
Products Affected
Mac OS X 10.5
Symptoms
In Mac OS X 10.5 through 10.5.4, your Mac may start up unexpectedly each day (at midnight UTC/GMT) even if it is not scheduled to start up in Energy Saver preferences in System Preferences.
The local time when the computer may start up will vary depending on which time zone you are located in and whether or not daylight savings time is being observed. For example: Midnight UTC/GMT may be 5 p.m. Pacific Daylight Time (PDT) or 7 p.m. Eastern Standard Time (EST).
This could happen after upgrading from Mac OS X 10.4 to Mac OS X 10.5 Leopard.
Resolution
Download and install Mac OS X 10.5.5 or later.
Additional Information
If you're not ready to update to Mac OS X 10.5.5 or later, you can use this workaround:
- Choose Go to Folder from the Finder's Go menu
- Type or paste the following, then press Return:
/Library/Preferences/SystemConfiguration/ - In the SystemConfiguration folder, locate and delete the file named "com.apple.AutoWake.plist"
Your computer should no longer start up at midnight UTC/GMT (unless you later add a scheduled event in Energy Saver preferences).
Tip: If you need to schedule your Mac to sleep, restart, or shut down at a specific time, you should also schedule it to wake or start up at a time when the computer is likely to already be powered on. For example, if you need the computer to shut down every day at 6:00 PM, you could schedule it to wake or start up at 5:55 PM. The computer will not start up at midnight UTC/GMT on any days, as long as it is scheduled to start up or wake at some other time at least one day a week.
Twitter
Facebook