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Windows 7: BSOD event log displays critical kernel error 41

07 Dec 2013   #1
bquig

Windows 7 ultimate x64
 
 
BSOD random. Event log displays critical kernel error 41

Hey all,
I've been having random BSOD on my custom built PC for a couple years. The event log displays Kernel 41 error. The computer may hang for several seconds and when I click a dialog box in chrome it may restart. Alternatively if I leave my PC and get a snack it will be trying to boot but stuck on loading ASUS express gate on start-up, or just have the blinking cursor, sometimes it may recover and just display the "windows has recovered from an unexpected shutdown". Every time I check the event log it's usually reported as said Kernel 41 error which I acknowledge is a power failure. Since I disabled the sleep mode it doesn't happen as much, but then again still randomly. As you can tell, I have been tracking this bug for some time. Any help would be amazing. Thanks so much!!!

As a side note I recently re-installed my operating system from clean install, and barely made it through (it took several attempts to successfully install) and after booting (before and after all driver updates from manufacturer Asus, Nvidia, etc.) it was still crashing randomly. I have installed all of the updates from the manufacturer's website, and update regularly.

I just had another BSOD while I stepped away for a couple minutes, so I ran the BSOD utility again (second zip file). Thanks again.


My System SpecsSystem Spec
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07 Dec 2013   #2
carwiz

Windows 7 Pro-x64
 
 

The Kernel 41 errors are difficult to pin down because they're issued after the fact. Here's an excerpt from an MS Support article that describes the event.

Quote:
The kernel power event ID 41 error occurs when the computer is shut down, or it restarts unexpectedly. When a computer that is running Windows starts, a check is performed to determine whether the computer was shut down cleanly. If the computer was not shut down cleanly, a Kernel Power Event 41 message is generated.

An event 41 is used to report that something unexpected happened that prevented Windows from shutting down correctly. There may be insufficient information to explicitly define what happened. To determine what may have happened and to identify a potential resolution, it is important to know what the computer was doing at the time just before the event occurred.

If event 41 is logged because power to the computer was interrupted, consider obtaining an uninterruptible power supply (UPS) such as a battery backup power supply. An underpowered or failing power supply may cause this behavior. For example, if you added RAM or additional devices or hard disks when this problem began, the power supply may cause the problem.
One item I did see that was occurring often was Windows Desktop Manager failing with code (0x40010004). This is normally associated with memory errors and/or an Aero configuration problem.

Check the voltage on your power supply. If you don't have access to a tester or monitoring software, you can use HWiNFO64 and run the Sensor monitor.

Try the Memtest86 for at least 7 passes. This will verify your memory modules.

Follow the instructions for Aero Troubleshooter. This will check your Aero settings for compatibility problems and attempt to fix them.
My System SpecsSystem Spec
07 Dec 2013   #3
bquig

Windows 7 ultimate x64
 
 

thanks for the reply carwiz,

I installed HWiNFO64 and I'm currently logging all the sensors. It's also a strange issue because I can't reproduce it. So I'll just keep monitoring.

I also tried the Aero Troubleshooter and it could not find any issues.

Lastly, I will try MemTest86 tonight. I have tried it in the past with no issues but maybe I didn't do enough passes. I will try the suggested 7 passes.
My System SpecsSystem Spec
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07 Dec 2013   #4
carwiz

Windows 7 Pro-x64
 
 

Post a snip of the voltages. It will show current, minimum and maximum values. The limit is +/- 5% for each voltage rail. (3, 5, 12v)
My System SpecsSystem Spec
07 Dec 2013   #5
bquig

Windows 7 ultimate x64
 
 
HWinfo sensor report

Here are two sensor reports from the last hour. There are too many sensors to put in one snip.
My System SpecsSystem Spec
07 Dec 2013   #6
bquig

Windows 7 ultimate x64
 
 

I noticed in the event log from SF that NvStreamSvc.exe was reporting several pages worth of errors. From what i gather it is related to the gtx 460 video card for streaming games. I disabled it using services, and set it to manual. I have also since uninstalled Itunes since the bonjour service was reporting a similar amount of errors. We'll see how the system responds. Thanks again--Quig
My System SpecsSystem Spec
07 Dec 2013   #7
carwiz

Windows 7 Pro-x64
 
 

I was primarily concerned with the voltages but the rest is interesting. The voltages look pretty darn good. Is you PC plugged into an Uninterruptable Power Supply (UPS)? Run the memory test over night.
My System SpecsSystem Spec
07 Dec 2013   #8
bquig

Windows 7 ultimate x64
 
 

ya, It was a considerably more information than I was expecting also. Especially since I took everything apart to clean out the chassis a few months ago when I did a clean OS install, and also installed the Hitachi HDD instead of utilizing the hotSwap. I wasnt even aware that there were so many temp readings available. Pretty good app, I'd say.
My System SpecsSystem Spec
07 Dec 2013   #9
bquig

Windows 7 ultimate x64
 
 

No, no UPS.
My System SpecsSystem Spec
07 Dec 2013   #10
bquig

Windows 7 ultimate x64
 
 

sure enough, as soon as I stepped away from my computer for 10 mins, it crashed
My System SpecsSystem Spec
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 BSOD event log displays critical kernel error 41




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