I've tried everything to fix my Kernel Power event 41 error and really need help.

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gabevoe3

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Jan 31, 2018
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For 6 months I've had a problem where whenever I do any intensive processes my computer will reset and I'll look at the log and find the Kernel Power event 41 error. The causes of it are very broad and I've tried everything I can think of: I've RMAed both my motherboard and PSU, reinstalled windows several times, removed and re-downloaded all my drivers, disabled video drivers, checked for damaged memory, screamed at my machine, and am a step away from satanic rituals.

Right now my current theory is it's my GPU, although I've no idea how it could be. Whenever I run stress tests without it plugged in the problem does not occur, but when I do it will.

It should be noted that whenever they happen, I have to wait a period of time before I can boot my PC up again without it resetting once on the home menu, almost like something is cooling down (the temps on my GPU and CPU during these incidents have never been over 65C.).

Anyone know something I might not have tried?


SPECS

MB: MSI Z270 Gaming Pro Carbon

CPU: Intel i7700k

GPU: EVGA GTX 1080Ti SC Black Edition

PSU: EVGA Supernova Platinum 650W

RAM: CORSAIR Vengeance LPX 8GB

Case: CORSAIR - Carbide Series Clear 600C Inverse
 
Solution
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Well this can be tested out. Your psu does not have to sit inside the case when you're testing. Your case can be completely open.
Breadboarding does the same thing except you wouldn't plug in your gpu or peripherals in that case. In your case you will use the gpu:
http://www.tomshardware.com/faq/id-2176482/breadboarding-stripping-basics-troubleshooting.html
You can also look up youtube videos on how to run the system like this on just open bench/table.
Then you can run and push your system with psu sitting independently on the table sucking in room temp air, and see if you have the same issue.
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Sedivy

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Dec 17, 2016
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Two things come to mind. Overheating does not always mean just the processor on the gpu but it could be vrm and such. However since this card has decent cooling setup, I'll assume that's not the issue unless you've done something to install custom cooling on it and didn't address that area's cooling.
Otherwise my suspicion would be your psu wattage. I know technically on paper when you count it all together it should be able to handle that system. However, if you add in components, hard drives, SSDs, overclocking, other hardware through usb ports, fancy cooling, wattage reqs may overwhelm that psu (depending on how you have your rig set up). Have you tried it with a psu with a different wattage? Do not go out and buy one, that's not what I'm suggesting. If you know someone with an 850 or higher, give it a try.
When you say intensive processes have you done stress testing on individual components? With something like Prime95 for cpu and furmark for gpu and memtest for memory? Jsut so you're able to isolate it better. Though pulling out gpu seems to suggest it's indeed the gpu.
 
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gabevoe3

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Jan 31, 2018
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Sadly, I don't know anyone with a PSU at that wattage. I'm to believe though that 650 watts should be more than enough.

I tested my PC on prime 95 with the GPU out and fur with it in, in which case it turned out okay. Memtest also ran fine.

I've not got any intensive hardware and extra hardware, beyond the 5 fans I have running.

Is there anything I can do on my end to cause my GPU to work properly, like increase the power it receives, or do I have to send it in if it is the case at this point?
 
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Sedivy

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Dec 17, 2016
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Yeah on paper it should be enough. But all hardware tests alone are coming back ok which is strange really if there was a hardware failure. It's a remote possibility but you could try plugging it elsewhere in your house (on a different circuit), just in case it's bad wiring and high power draw is causing issues.

It could be a driver issue but you do mention you updated your graphics drivers. One thing to try it to completely uninstall them with something like DDU and install an earlier known to be stable version of the gpu driver. Sometimes latest drivers aren't greatest as they can have issues not yet tested out in public.

Still the fact it won't let you start for a while to me suggests a cooling problem and you say your temps are cool which is odd.

Can you try all this with a usb linux based temporary system (entirely contained on the usb, lasts only for the space of one boot, while usb is plugged in, without installing anything to your drives). Something like parted magic or ubuntu live usb. If you try taxing your system running from it, does it still crash? Idea here is to check drivers and see if it's the windows based ones which are causing the issues.
 
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gabevoe3

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Jan 31, 2018
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I'm getting that USB IOS set up right now.

There is definitely a problem with cooling somewhere, I just don't know what. (I just did a FurMark test, down clocking my GPU with 100% fan speed and it lasted longer than before although it did reset on the fourth test at 39°C.)

I should note that my PSU is a top mounted one, would heat from the GPU be enough to overheat it?

I do doubt it could be ram overheating since it dies fine when I ran prime 95.

 
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Sedivy

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Dec 17, 2016
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I....ok how are you watching temps because running furmark, your gpu should not be sitting at 39C at all. It should be in 60s, 70s minimum and often higher. Are you using something like HWMonitor?
While top mounted psu does run into an issue of rising heat and decreasing performance over time, if you rma'd it, it shouldn't be having issues yet...unless your case temps are off the chart? Again something HWMonitor will be able to read off of motherboard.
 
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gabevoe3

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Jan 31, 2018
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In the case of the lower temp it was because the fans were running at 100% and I'd given it a few minutes between the last test.

I've been looking around and it might actually still be the PSU. Many reviewers on new egg noted that the fans would not turn on and the PSU would overheat. So even if my unit isn't defective, it's overheating from just the way it was made. Perhaps the ideal place for it is a bottom mount do heat doesn't rise into it. I'm going to put another fan on it tomorrow and see if that helps.

It would really add up though, considering there needs to be a cool down period.

https://m.newegg.com/products/9SIA6ZP3S84785/reviews
 
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Sedivy

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Dec 17, 2016
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Well this can be tested out. Your psu does not have to sit inside the case when you're testing. Your case can be completely open.
Breadboarding does the same thing except you wouldn't plug in your gpu or peripherals in that case. In your case you will use the gpu:
http://www.tomshardware.com/faq/id-2176482/breadboarding-stripping-basics-troubleshooting.html
You can also look up youtube videos on how to run the system like this on just open bench/table.
Then you can run and push your system with psu sitting independently on the table sucking in room temp air, and see if you have the same issue.
 
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Solution
jr9

jr9

Estimable
Dec 6, 2017
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I'd start with another higher wattage power supply to trully eliminate PSU. If you don't have one then borrow one or pay a shop to do a diagnostic for you. If you don't do this first you stand to waste many hours troubleshooting. Possibilities:

- Bad or overloaded PSU
- Bad motherboard
- Bad video card
- Video card driver malfunction

Nothing else will cause sudden hard resets. If it was overheating it would throttle then shut down.
 
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squidvishus

Nov 6, 2018
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I'm actually having the same similar issue..shuts down after an hour or 2 without a BSOD or anything. Stressed it for 28 straight hours and it never shut down at all. When I put Windows 10 on it (happened with 7 and 8.1 prior), it did it again. I changed all the power options so there's no idle timeouts or hibernating. Have liquid cooling in it (which came with it), 1 SSD, 2 EIDE drives, 700W supply. Just don't understand why it was fine for 2 years then suddenly...crap. Seems like the supply but heck, it stayed on for 28 hrs with no OS. I'll have to try to remove the video card but never was an issue before.
 
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Chupacabra69

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Dec 9, 2014
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I always like to try to eliminate causes to nail down root cause.

Is it heat related? Download CPU-Z and GPU-Z to monitor temps (or insert software here) and see if you're overheating.

You probably did it but I didn't see it listed; reseat the memory and put em in different slots. Even just use 2 slots instead of all 4+.

If you're overclocking anything, turn off all overclock on the CPU and GPU. Re-run tests. Does it happen again?

If you think it is a problem with your PSU and you have a spare, temp replace it, see if the problem happens again.

Reseat video card and use another slot if you have one. Try a different video card in the slot if you have one. Most of us have some old hardware parts from machines long past we call on to help us find issues. They don't perform well any more, but we know they work.

Back up BIOS, then update it.

Try running the test in Safe Mode, if it'll run.

Download a .DMP file reader to read your BSOD dmp files. See what happened in the moments just prior to the actual shutdown event. May give you a clue. Can't remember which one I used at work.. maybe Blue Screen View? You can google and find one.


 
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squidvishus

Nov 6, 2018
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I posted earlier with the same problem and I think I found the issue.

I downloaded and installed Speedfan and Open Hardware Monitor to watch the temps. When I had the side panel of my system off, it never shut down suddenly. When I put the panel on, it shut down a few times after 30 minutes or so. I do have liquid cooling going to my processor and 2 fans in front, plus the power supply fan was working. Since it only happened with the case cover on, I figured it had to be temperature.

With the Speedfan and Open Hardware Monitor, I noticed the temp of the motherboard (or connections to) was overheating (showed about 85 C) as opposed to when it was off (around 65-70C). I figured I needed more airflow through the system. I have an 800W power supply so I didn't think that was the issue. To get more airflow, I merely removed the power supply and turned it upside down. The PS fan was pointing down through a vent at the bottom (and it wasn't covered by the floor...sits a few inches above) so I thought if the fan was facing up, it would send more cool air to the inside of the system.

Hasn't overheated since.


UPDATE: Still going strong. I swapped out the 800W PS for a 1200W and things are still going smoothly. The CPU average (8 core) is around 30-40C and close to 80C when gaming. I also installed that PS with the fan facing up inside the case so I'm hoping this will also keep things level. Made sure the system wasn't overclocking as well (at 4.4GHZ - AMD). Thanks for all your posts. They have been very helpful.
 
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