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You're welcome. Note that the "Wake for network access" setting in Energy Saver is controlled by a different Terminal command, sudo pmset -a womp [0 or 1]. Somewhat confusingly, even when this setting is off/set to 0, it does still allow some network activity while the computer is asleep.

The sudo pmset -a tcpkeepalive 0 Terminal command I mentioned earlier is a much more restrictive command that does not have a corresponding checkbox in Energy Saver. It stops any and all network activity while the computer is asleep. It is the brute force option to ensure that the computer will not wake from sleep until you physically wake it up.
Thanks, if I want to put it back in a default state, should I substitute 0 with 1 ?
 
I'm still having the strange sleep problem that' a bit different. I choose sleep from the Apple menu and sometimes it goes to sleep and other times it takes, 2, 3, 4 even 5 times selecting sleep before it does. It never wakes up after it does go to sleep, though.
 
You're welcome. Note that the "Wake for network access" setting in Energy Saver is controlled by a different Terminal command, sudo pmset -a womp [0 or 1]. Somewhat confusingly, even when this setting is off/set to 0, it does still allow some network activity while the computer is asleep.

The sudo pmset -a tcpkeepalive 0 Terminal command I mentioned earlier is a much more restrictive command that does not have a corresponding checkbox in Energy Saver. It stops any and all network activity while the computer is asleep. It is the brute force option to ensure that the computer will not wake from sleep until you physically wake it up.

I got great results. For some mysterious reasons it still wakes up from time to time and after a few minutes goes back to sleep but when I come to the desk in the morning now it's always asleep. Thank you very much

Gabriele
 
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I'm still having the strange sleep problem that' a bit different. I choose sleep from the Apple menu and sometimes it goes to sleep and other times it takes, 2, 3, 4 even 5 times selecting sleep before it does. It never wakes up after it does go to sleep, though.
Did you try just to give it a minute? Sometimes mine goes to sleep immediately, sometimes it take a bit of time but at the end it always sleep. I think it has to reader its things before going to sleep (close some files, flush some buffers or disk cache).
 
One of the reasons I don't shut down my Max: it's positioned at the back of my desk and it's difficult to find the power button without moving the computer.

But you can use the Apple menu in the menu bar to switch it off. Or you can (as I have done) create a shortcut to put it to sleep (I created an Automator script to shut the Mac down when I press a certain combination of keys).
 
One thing I find bizarre is that they don’t shut the light off when it’s asleep. It doesn’t pulse or anything. It just stays there as if it’s on. I’ve been able to confirm sleep time with istat menus, but it’s very strange.
 
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One thing I find bizarre is that they don’t shut the light off when it’s asleep. It doesn’t pulse or anything. It just stays there as if it’s on. I’ve been able to confirm sleep time with istat menus, but it’s very strange.
how do you use iStat to tell if he computer has been sleeping? I've never used that app.
 
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Did you try just to give it a minute? Sometimes mine goes to sleep immediately, sometimes it take a bit of time but at the end it always sleep. I think it has to reader its things before going to sleep (close some files, flush some buffers or disk cache).
No never tried this so I will. Thanks for the tip.
 
Other than power draw, what is the problem with running it 24/7? You worried about the fan motor wearing out? I think that is the only moving part in the whole thing.
right, and what's riding on the fan? only everything. ;)
 
I don't think my Max goes to sleep. I closed all of my open apps, disconnected an external HDD and chose SLEEP from the Apple menu.

I checked fan speed with iStat and it looks like the fans continued to spin when the computer should be sleeping.
 
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I don't think my Max goes to sleep. I closed all of my open apps, disconnected an external HDD and chose SLEEP from the Apple menu.

I checked fan speed with iStat and it looks like the fans continued to spin when the computer should be sleeping.

This is crazy. I never shut my iMac down, I just put it to sleep.

The difference in energy consumption in a few years could be very significant if this is true, both in money and carbon footprint. Not to mention moving parts (fans) aging, which could be even more costly to repair if needed.
 
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This is crazy. I never shut my iMac down, I just put it to sleep.

The difference in energy consumption in a few years could be very significant if this is true, both in money and carbon footprint. Not to mention moving parts (fans) aging, which could be even more costly to repair if needed.
right? I even turned off my blue tooth keyboard and trackpad and, if the iStat fan history is an indicator, the Studio sleeps for about 15 minutes then wakes up. If the power button was easier to find, I wouldn't mind shutting it down over night ... I just don't want to fans sucking dust when I'm not using it.

I think the fans in the studio display continue even if the computer sleeps ... so maybe just shutting down is the best way to go.

are you sure your iMac sleeps?
 
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No never tried this so I will. Thanks for the tip.
So did try waiting after selecting sleep in Apple menu and no go. It just keeps taking me back to the sign in screen and I have to keep signing in then click sleep again and hope it only takes a few tries to actually go to sleep. Never wakes up after it does though.
 
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