Join Christopher Breen for an in-depth discussion in this video Scheduling start-up and shutdown, part of Mac OS X 10.8 Mountain Lion Tips and Tricks.
Many of us are making efforts to save energy, whether to lower our utility bills or because it just seems like the right thing to do. Mountain Lion can help in this regard. Plus, knowing this trick you can be sure that your Mac is up and running when you're ready to begin the day. The trick is to open System Preferences, go to the Energy Saver preference, click Schedule. And here's where you schedule Start up or wake, as well as Sleep, Restart, or Shut Down and it works like this. Enable Start up or wake, and then choose the days and time that your Mac will wake up or start up.
So this can be Every Day, Weekdays, Weekends, or you can choose specific days of the week. We'll leave it at Every Day. And I can decide what time I want this to wake up, let's say 8 a.m., done. Enable the next option, and here you have the opportunity to change your Sleep, Restart or Shut Down settings for the schedule. Again, let's make it Sleep, Every Day at 10 p.m., and, I click OK.
When I do that, my Mac will dutifully wake up in the morning at 8 a.m., and it will go to sleep at 10 p.m., every day. There are a couple of other options here that you should pay attention to. One is Wake for Wi-fi network access. Now, if you're looking at your Mac, you may not see these exact words. It may be Wake for Ethernet or Wake for network activity or something like that. But the idea is this, let's say that I've used this schedule and my Mac has gone to sleep at 10 p.m. Well, at 1 a.m., I may be working late and I need access to this computer from another one of my Mac.
Maybe I want to share the screen, or I want to get a file from it. When I access it over the network, this will cause the Mac to wake up, and then I can use it. So with this option on, I have access to my Mac over the network. If I turn it off, it won't wake up, and then there's this very specific setting that you're only going to find on a Couple of Macs. And these are very recent models, and that's the, Enable power nap while plugged into an adapter. What this does is when my Mac is asleep, and this happens to be a Macbook Air. I can close the lid and put it to sleep, but while it's sleeping it can still so some things. For example, it can continue to backing up to time machine. You can check for new email, if there's a calendar update, it will take that, and if there are other iCloud updates, it will take that as well. Then when I wake the machine up, all these things will have happened while it's been sleeping.
Now, all this is likely to bring up the question, in regard to energy use. Is it better for me to Shut down my Mac every night and then start it up in the morning. Where startup can use a fair bit of energy in the first 90 seconds or so, or is it better to leave my Mac running but sleeping? Well, it depends on the kind of Mac you have. If you have a Mac Pro, which uses a bit more power when sleeping than maybe a laptop. Over the long haul you'll save some energy by shutting it down at the end of the day. But what we're really not talking about a lot of power.
So it's perfectly okay at the end of the day to have your Mac go to sleep and then wake it up in the morning. You won't wind up using a lot of excess energy. However, what you don't want to do is leave the thing running, full bore all night when you're not using. You are going to suck up a lot of power, particularly if you're using something like a Mac Pro, which really does use an awful lot of power. And that's using the Energy Saver Preference to create a schedule.
- Creating smarter Smart Mailboxes
- Sharing and delegating calendars
- Syncing Google contacts
- Discovering hidden tricks within contact headings
- Scheduling startup and shutdown
- Copying files via Bluetooth
- Using a remote disc
- Creating password-protected archives
- Creating a bootable installer drive
- Repairing your keychain
- Resetting your login password