Both of my Windows 10 PCs have started suddenly started losing power and instantly shutting down with the same error.

cheru2016

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Jul 12, 2015
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Hi guys,

in a nutshell, my problem is that both my desktop PC, and my laptop, have started intermittently losing power out of nowhere, and just shutting themselves down as though someone had been holding in the power button.

Interestingly, this started happening in September for BOTH computers.
Power Kernal 41 63 is a generic error msg that's thrown up when the PC suddenly loses power or is turned off without shutting down. Since September, I have a massive list of about 50 of these instances in the W10 event viewer for both computers. I don't believe it's the PSU as both have extremely expensive and high quality PSUs that were bought and installed less than a year ago. Also, one is used at home, and the other used at work or university, which rules out that it may have been a power surge or something that happened at the same time to the entire house. The laptop is never used or charged at home.

I've been searching the net for other people that have had similar issues, and there are plenty. Some people suggest it's a driver issue from upgrading W10 to W10 anniversary and not doing a clean install, though there's not a single thread ANYWHERE with a definitive answer as to what the problem actually is, and of course, Microsoft, not knowing their arse from their elbow, also have nothing of use to contribute to the discussion.

I believe that in the case of my desktop at least, the issue definitely does have to do with the anniversary update, as the first instance of this error was on the 27th of September. The 27th of September was also the release of Forza Horizon 3, which required the anniversary update to run. I went from vanilla W10 to W10 anniversary on that very day, and since then the power downs have been frequent. This is a little too much of a coincidence, and other people as I mentioned above, have stated that similar things started happening when they upgraded to anniversary.

As to when my laptop was updated to the anniversary edition, I honestly don't know, as the laptop is set to update automatically. It did however update before my desktop did.

Honestly though, I have no idea what's going, and as a YouTuber, I have a crap ton of stuff on my OS SSDs that I'd rather not have to erase and reinstall from scratch. The amount of time that's going to take, I simply don't have right now.

In case anyone's wondering what PSUs I'm using, I can't recall off the top of my head for the laptop, but the desktop has a Coolermaster Vanguard Platinum 1200W.

Any help or advice you can shine on the situation would be very much appreciated.

Thanks dudes!
 
random restarts linked to event 41 means windows doesn't know why its happening. If you have no other errors its not windows.

try updating bios and drivers, BIOS is about only bit of software that could cause it. If it were drivers windows would create bugchecks, not power loss.
 


It's not even a random restart. The pc just turns off instantly and that's it. It's happening on two separate machines however, and it started occurring around the same time on both. Both in September of this year. Never an incidence of it happening once before this time on either.

The bios on both machines have been updated to the latest revisions.

 
Discovery:
Kernal power failures are a pain as there's no quick way to figure out what the cause is. I've had everything from led fans shorting out to bits of coper wire touching the MB causing this. My feedback refers to new builds. It might not be directly relevent but suprised me and might point you in a different direction....
Last year eight systems were built for clients wishing inexpensive gaming PCs. AMD eight core proc on 990X M/B ,M.2 drives and R9 380 XFX componants were chosen. Two came back with intermittent Kernal Power failures earlier this year.
Nothing could be found... Until...
I accidentally plugged the monitor into the XFX red socket instead of the white. After a few hours gaming Elite Horizons, sure enough the system re-booted with Kernal power fail.
This is not a simple problem. It looks like heat but isn't. I've no idea why this happens but the fault can be reproduced every time and resolved by changing the socket. This is clearly something to do with the video card. It might be a bad batch, but more likely it's something else.
Solution: plug into the white socket = No failures.
What about dual screen setup? I don't know. These cards aren't purchased any longer and I've not seen this fault with new builds.
Hope this helps someone.
 
Necroing an old thread that I posted about 7 months ago, but the power loss I was experienced temporarily subsided until a few months ago, and now there have been 122 instances of lost power in the past 3 months. I'm still using the same PSU as before, but the problem seemed to have disappeared since November last year until April of this year when it began all over again.

Temps are in check, so it's not a heat related issue. I also turned off anti-surge protection in my bios, but that hasn't helped either. I've heard it may be CPU, Ram, Mobo or PSU. How is someone with no time meant to diagnose something like this without just buying an entirely new computer ..
 


Sorry for the late reply.

I have an ASUS Maximus Hero VII motherboard, i7 4790k (stock), Gigabyte Aorus 1080 Ti, 16gb of G.Skill Ram (tested and fine) and a couple of SSDs.

Picked up a Z270X Gigabyte Aorus 7 mobo yesterday, as well as an i7 7700k and some DDR4 ram as the old mobo is DDR3. I haven't opened the packaging yet, but I wanted to have it on standby in case my PC continues to crap itself. YouTube's a second job for me and the number of videos I've lost mid-recording is becoming very costly both in time and money. I need to get this sorted asap but I'm losing patience and replacing the entire guts of the case may be the simplest solution.