Wake Reason RTC EHC1 on 10.10 - Z77X UD5H

[qaesar]

It wakes up after 2 hours and then it stays on..

syslog |grep -i "Wake reason" shows me:
Oct 19 07:06:05 MacPro kernel[0] <Notice>: Wake reason: RTC EHC1 (Alarm)

Z77x UD5H worked on Mavericks perfectly with sleep.

Wake on Ethernet was/is OFF
Only KeyB/Mouse on USB
No scheduled wakes/sleeps

RTC EHC1 ? Is RTC internal or is this usb wake ? I read that mDNS was replaced in Yosemite by discoveryd that makes wake trouble.. could this be it ?

Im out of ideas.

PS: does the CMOS reset kext. has to be installed on this Mainboard ? (one of the best Hacktosh Boards > UEFI no DSDT) cause i installed the CMOS reset from Multibeast > could this be the reason ? (still had it installed in Mavericks also, no similar wakeup)

 

[mkaen]

Having a similar issue with Yosemite.

Z77 DS3H

Wake reason: RTC (Alarm)

 

[airman423]

I have same issue with ga-z97x-sli I have tried numerous things with no fix. This is driving me crazy seems to be yosemite issue that has been around since beta.

 

[Tenczys]

Same here with ga z87x-ud5h

 

[qaesar]

Bump. Any news ?

 

[DarkAngel88]

Same problem here...

Wake reason: RTC (Alarm)

Tried disabling WOL (Wake On Lan) but still, the computer wakes up every 2 hours.

 

[DarkAngel88]

If this could be of any help, this post fixed the issue in my case: http://ispire.me/fix-yosemite-rtc-alarm-wakeup-issue/

 

[mkaen]

Still having the problem after turning off "Wake on LAN".

 

[CoBrA2168]

See this thread for solutions:
http://www.insanelymac.com/forum/topic/300072-wake-reason-rtc-alarm-how-to-deactivate/

 

[mkaen]

See this thread for solutions:
http://www.insanelymac.com/forum/topic/300072-wake-reason-rtc-alarm-how-to-deactivate/

To summarize what's in that thread -- you need to replace some binaries (mDNSresponder and discoveryd) with Mavericks versions of those files. There are other suggestions such as simply unloading the modules, but that disables networking functionality.

Has anyone tried these methods with any success?