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Z97E-ITX/ac boots itself randomly

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=3145
Printed Date: 21 Jul 2025 at 6:13am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: Z97E-ITX/ac boots itself randomly
Posted By: macShen
Subject: Z97E-ITX/ac boots itself randomly
Date Posted: 30 Jul 2016 at 5:41pm
Hi

I'm Markus and i stranded here because my UEFI support function couldn't send my problem to the support server (connection problem?)

Anyways...
My problem is the following:

My Z97E-ITX/ac manages to boot itself up.
I tried almost every possible configuration now.
But finally i unplugged all the devices from USB, LAN cable, HDMI cable, i even unplugged the complete front IO with all the little cables for the power switch from the MB.

So it was only the MB, PS, RAM, CPU, SSD and some fans connected.
PC still boots itself randomly.

I already tried a few tips from the www, but nothing helped.

But today i came across this info as i found my pc running without powering it on myself.
CMD -> powercfd -lastwake gave me this:

Wake history count - 1
Wake history [0]
Wake source count - 1
Wake source [0]
Type: Device
Instance path: PCI\VEN_8086&DEV_8CB1&SUBSYS_8CB11849&REV_00\3&11583659&0&A0
Friendly Name: Intel(R) USB 3.0 eXtensible Host Controller - 0100 (Microsoft)

Description: USB xHCI Compliant Host Controller
Manufacturer: Generic USB xHCI Host Controller

Hardware:
Z97E-ITX/ac
4790k
GTX970
Cruical Ballistix 2x8GB
840 Evo SSD

Thanks for the help in advance
Markus




Replies:
Posted By: macShen
Date Posted: 06 Aug 2016 at 3:34am
BUMP


Posted By: parsec
Date Posted: 06 Aug 2016 at 11:52am
Originally posted by macShen macShen wrote:

Hi

I'm Markus and i stranded here because my UEFI support function couldn't send my problem to the support server (connection problem?)

Anyways...
My problem is the following:

My Z97E-ITX/ac manages to boot itself up.
I tried almost every possible configuration now.
But finally i unplugged all the devices from USB, LAN cable, HDMI cable, i even unplugged the complete front IO with all the little cables for the power switch from the MB.

So it was only the MB, PS, RAM, CPU, SSD and some fans connected.
PC still boots itself randomly.

I already tried a few tips from the www, but nothing helped.

But today i came across this info as i found my pc running without powering it on myself.
CMD -> powercfd -lastwake gave me this:

Wake history count - 1
Wake history [0]
Wake source count - 1
Wake source [0]
Type: Device
Instance path: PCI\VEN_8086&DEV_8CB1&SUBSYS_8CB11849&REV_00\3&11583659&0&A0
Friendly Name: Intel(R) USB 3.0 eXtensible Host Controller - 0100 (Microsoft)

Description: USB xHCI Compliant Host Controller
Manufacturer: Generic USB xHCI Host Controller

Hardware:
Z97E-ITX/ac
4790k
GTX970
Cruical Ballistix 2x8GB
840 Evo SSD

Thanks for the help in advance
Markus



Do you have anything like a mouse or keyboard connected to a USB 3.0 port when the PC started by itself? Or some other USB device?

Are you using Windows 10?

Open Device Manager in Windows, and check all the USB Root Hub Properties, those that have a Power Management tab. There may be more than one entry that is a USB Root Hub.

Uncheck the "Allow this device to wake the computer" entry, so it looks like this.





-------------
http://valid.x86.fr/48rujh" rel="nofollow">


Posted By: wardog
Date Posted: 06 Aug 2016 at 8:58pm
What parsec suggested, and I'd like to know if this is a new build or one that was running fine previously for quite some time prior.


Posted By: macShen
Date Posted: 07 Aug 2016 at 7:29pm
Originally posted by parsec parsec wrote:


Do you have anything like a mouse or keyboard connected to a USB 3.0 port when the PC started by itself? Or some other USB device?

Are you using Windows 10?

Open Device Manager in Windows, and check all the USB Root Hub Properties, those that have a Power Management tab. There may be more than one entry that is a USB Root Hub.

Uncheck the "Allow this device to wake the computer" entry, so it looks like this.




Hi, thank you for your suggestion.

I've checked the USB controllers and none of them are set to wake my PC.
The built is 6 months old and showed this behavior ever since.

I run Win 8.1 with a valid key.

It even shows the same behavior when nothing is plugged in at all.
No USB device or anything is connected.

Actual setup is a disabled autolog on, so it goes to hibernate after it starts itself.

Just to mention it again, i always shut down my PC completely when i leave.

MacShen


Posted By: wardog
Date Posted: 08 Aug 2016 at 12:38pm
Vendor 8086 is Intel.

Curios. If you've installed the ASRock A-Tuning utility, please uninstall it, reboot, and report back if this alone remedied this issue.


Posted By: macShen
Date Posted: 09 Aug 2016 at 3:12am
Originally posted by wardog wardog wrote:

Vendor 8086 is Intel.

Curios. If you've installed the ASRock A-Tuning utility, please uninstall it, reboot, and report back if this alone remedied this issue.
Hi wardog

No i didn't install A-Tuning as i don't use it.
Here's a list of all the programs installed.
The only one not listed is Winrar...

https://s9.postimg.org/eibj27pjz/Capture.png


Br
Markus


Posted By: macShen
Date Posted: 10 Aug 2016 at 8:04pm
Is there no ASRock tech who can help out?
Do i have to return my MB as this behavior is really strange to me, but hard to explain in the shop i bought it as i have to tear my PC apart again!


Posted By: wardog
Date Posted: 10 Aug 2016 at 8:58pm
It's mostly a User Supported forum with the occasional fly over from a Tech.

http://event.asrock.com/tsd.asp" rel="nofollow - http://event.asrock.com/tsd.asp


Posted By: wardog
Date Posted: 10 Aug 2016 at 9:23pm
Mac, just how fast after shutting it down would you say it takes to find it running again?

Start > type Power Options > "Change plan settings" on your current chosen plan > then "Change advanced power settings" > Sleep > "Allow hybrid sleep" - change to No, please reply back how it behaves after a reboot.

I'm glad I skipped Win8.x, instead going from 7 straight to 10. PITA it was, 8.x support.


Posted By: wardog
Date Posted: 10 Aug 2016 at 9:26pm
Play along here as strange as this may sound .............

Your NIC, is WoL enabled? Too, if you were to disconnect the LAN cable does it power itself on?


Posted By: macShen
Date Posted: 11 Aug 2016 at 7:18pm

I'd say it takes approx. 24h to find the PC booted again.

Hybernate was deactivated in the beginning, it booted anyway.

WoL is disabled in BIOS, NIC is enabled, but no Ethernet cable connected.
The powercfg tells me it's from the USB3 port, so i'd say it has nothing to do with the Network.
But still... i tried almost every possible config on my rig to find the Problem.
 
Maybe it's just Earth magnetic field or a silly ghost ^^ really loosing my Patience here.
 
Thank you for your Support.
 
Mac
 
 


Posted By: JustMeHere
Date Posted: 17 Aug 2016 at 2:47am
Check you task manager scheduler.  You might have a scheduled task that will wake up the computer.


Posted By: macShen
Date Posted: 02 Sep 2016 at 2:25pm
Hi guys.
 
I'll try to swap on an additional PSU and check if the behavior is still the same.
Also going to check the task scheduler.
 
Wish me luck


Posted By: macShen
Date Posted: 26 Sep 2016 at 4:53pm
Hi all. I  now installed a power socket with a net filter.
Looks like the sinus in my house isn't as it should be.
However... the thing is installed for 1 week now and no abnormal boots since then.
The change of the PSU didn't work!
 
Hope this solves this problem once and for all


Posted By: macShen
Date Posted: 14 Nov 2016 at 5:03pm

Hello

Unfortunately my problem isn't solved yet.
My PC still boots itself from time to time when I forget to turn of the hard switch on the powersplitter.
I've found so many posts of other user with the same problem on ASUS or AsRock boards...
Really wish yomeone could fix this tho.
 
Keep digging... 


Posted By: macShen
Date Posted: 16 Nov 2016 at 5:57pm
Fixed by disabling the F***IN Smart connect via BIOS
 
https://nitemice.com/2015/06/04/computer-inexplicably-turning-on-intel-to-blame/" rel="nofollow - https://nitemice.com/2015/06/04/computer-inexplicably-turning-on-intel-to-blame/
 


Posted By: Xaltar
Date Posted: 16 Nov 2016 at 6:29pm
Awesome, thanks for the link. I discovered the same issue on my Z97 Extreme 3 the other day, I walked in to my office and it was on, it hasn't even been plugged in for months but after cleaning out behind my desk I reconnected it. It was off when I went out and on when I came back. This has happened 3 times since. I will try what the link suggests myself and post back at some point later in the week.

-------------


Posted By: parsec
Date Posted: 16 Nov 2016 at 9:50pm
Originally posted by macShen macShen wrote:

Fixed by disabling the F***IN Smart connect via BIOS
 
https://nitemice.com/2015/06/04/computer-inexplicably-turning-on-intel-to-blame/" rel="nofollow - https://nitemice.com/2015/06/04/computer-inexplicably-turning-on-intel-to-blame/
 


That's not a bug, that's a feature! Wink  Well, actually it is a feature, but one I routinely disabled in the UEFI/BIOS of my Z87 and Z97 boards.

I suppose it might be somewhat handy to have, if you have a slow Internet connection for email for example, but that must be rather rare now. Never used it even once.

My question is, why that feature was enabled by default? I think we can figure that out ourselves... because someone wanted it that way.

I completely forgot about Intel's Smart Connect, since it is not included in my X99, H110, and Z170 systems. You were right about a ghost in the machine. Wink


-------------
http://valid.x86.fr/48rujh" rel="nofollow">


Posted By: macShen
Date Posted: 18 Nov 2016 at 4:55pm
" rel="nofollow - I agree, it's not a bug.
But in the description of it in BIOS it says that this feature can wake your PC from sleep or hibernate.
 
BUT it woke my PC from the fully shut down state, so this is indeed a bug to me.
 
Who want's his desktop PC to check social media crap automatically? this is maybe useful for notebooks and so on.
 
still had no further random boot ups by the time.
 
I'm happy this solved my and a few others problem.
 
Sorry for my English and have a potato :)
Nice Friday everyone



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