iMac: auto-wakes after sleep

[DennisMadsen]

I've got my new iMac yesterday. It's the 27" upgraded with the i7 CPU.
When I put the iMac in sleep it wakes up automatically 2 seconds after. Can somebody explain me why?

I've installed extra RAM blocks. It's Kingston KTA-MB1333/4G. See my attachment.

 

[GGJstudios]

Mac OS X: Why your Mac might not sleep or stay in sleep mode

 

[DennisMadsen]

Mac OS X: Why your Mac might not sleep or stay in sleep mode

Anything specific of the topics you are thinking about?

My iMac has now been running the hole night (6,5-7 hours) eg. to index spotlight. It was set to sleep after 15 minutes, but it was still awake when I wake up.

I've removed the "Wake for network access" option in Settings->Energy Saving. What seems to be a solution for me. But why should it wake for network access? Any specific program?

 

[Icy1007]

Allowing it to wake from network access would allow you to access your computer remotely while it is asleep.

 

[DennisMadsen]

I found this article: http://osxdaily.com/2010/07/17/why-mac-wakes-from-sleep/

That allowed my to explore what wakes up my iMac. It seems to be a EHC2, which could be a USB controller. I had connected a iPhone dock with a USB data cable. I've disconnected it and would now test if this helped me.

I'll update in a few days.

 

[product26]

Mine would wake because of the magic trackpad.

 

[DennisMadsen]

My iMac is still waking up automatically, but now only RTC wake up events occur:

Fri May 13 18:29:17 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
Fri May 13 20:10:02 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
Fri May 13 21:50:29 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
Fri May 13 23:30:38 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
Sat May 14 01:10:28 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
Sat May 14 02:50:01 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC

What can the reason be for that? Is it my Time Capsule that is waking up the iMac? Please notice, that all minutes are something link 20:10, 21:50, 23:30, 01:10, 02:50. What can the reason by?

 

[DennisMadsen]

It seems that disabling "Energy Saver -> Wake for network access" stop waking up my iMac. Which network devices can wake up my device?