Random Shutdowns - Kernel Power

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Bullivent

Commendable
Aug 4, 2016
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1,510
For the past few days my PC has been randomly turning itself off and restarting with no warning, It has done it like twice while browsing the web but it does it mostly when gaming. Also a day or two before this started happening, I completely formatted the SSD and re-installed Windows 10.

The Critical error is Kernel Power - Event ID 41 and I have noticed there is an error that happens every time This happens which is Event Log - Event ID 6008

I have took some steps to try stop it but I cannot find the problem so I came here,

So far I have;

- Modified fan speeds and made sure there is nothing overheating
- Changed power settings from balanced to performance and changed it so it never sleeps or turns display off
- Disabled any duplicated sound drivers/Any drivers I don't use as I have read this is a common cause
-Ensured my Power supply has enough power for my system
-Ensured nothing is Overclocked ( I have never overclocked this PC )
-I have turned off the settings which tells the PC to automatically restart after random shutdowns in the hope I would get an Error code however I still get nothing and it just restarts.

My PC is around 8 Months old.

System Specs;

Motherboard: Asus Maxiumus VIII Hero
Processor: i7 6700K @ 4.0GHz Turbo 4.2 GHz
Cooler: Corsair Hydro H100i V2 GTX
RAM: Corsair Vengance LPX - 16GB - 3000MHz - DDR4
Graphics Card: Asus Strix GTX 970 4GB
SSD: Samsung 850 EVO 500GB
PSU: EVGA SuperNova G2 550W

Any help would be much appreciated, This problem is driving me nuts!


 
Solution
1LiquidPC
I would advise against using your system for the time being. Not sure the risk of actual damage from either a cooling or voltage problem you're having, but it sounds like your system is unusable at the moment anyways.
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Viking2121

Viking2121

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May 9, 2012
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I would rule out the PSU just yet, that 550 G2 is an amazing PSU.

Kernel power can be from anything, I get the same error with a bad overclock sometimes, mostly from unstable ram, or even bad cooling I've seen system throw out a kernel error BSOD.

Check you'er RAM, 3000mhz is a quit a bit for the 6700k since its native speed is suppose to be 2133mhz for DDR4. I suggest to lower you're ram speed 2800mhz or lower and do the same things you normally do that give you the error.
 
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J

Jords

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Mar 10, 2015
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After a few days of testing everything, put ram down to 2133MHz, everything was fine for a few days, I realised I didnt have GeForce experience downloaded which I use to record, so I downloaded and installed it and immediately my PC turned off.

I uninstalled it however my PC kept shutting down after this, so I formatted and re installed Windows 10 again, set everything up as I would but missed out GeForce experience, and two days now with gaming and no shutdowns.

Could it have been GeForce experience causing the shutdowns? I don't see how it could be as I've used it before with no problems whatsoever?
 
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Viking2121

Viking2121

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May 9, 2012
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Well a BSOD can corrupt windows, I've had bad ram cause a bad windows install but was stable for the most part, Windows would not load certain apps like control panel or task manager, but I could stress the system out. An unstable ram overclock or ram is more prone to corrupting things than really anything else.

I've had a few BSOD messing around with overclocks and I've corrupted my USB 3 drivers, video drivers before, I've also kept getting more BSODs despite my overclock being stable, I'd just say the BSODs that you've had messed up the video drivers.

If you want to make sure your system is stable, You can use Intel Burn Test to stress your CPU and RAM, You want to set the memory to Vary High or Maximum, But you will also want to watch your temps, keep CPU ideally below 80C although going somewhat over 80C wont hurt it, I just don't recommend setting at over 80C for extended times.

Intel Burn Test = http://www.majorgeeks.com/files/details/intelburntest.html
HWMonitor for viewing temps = http://www.cpuid.com/softwares/hwmonitor.html

57kgna5mfh1ejwkzg.jpg


 
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B

Bullivent

Commendable
Aug 4, 2016
20
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1,510
Ok so I ram Memtest for 16 hours, Got a total of 9 passes with 0 errors, So I ended the test and started with the Intel Burn Test.

I put the test on Very high and my temps hit 90 degrees which surely shouldn't be right? My settings on the cooler (Corsair H100i GTX V2 ) were set so fans were on performance and Pump on Quiet ( I have it like this as the pump noise bothers me sometimes ) After this I upped the pump to Performance mode and my temps stuck to around 77-80 Degrees, Is this normal for a Water cooler on performance settings with an i7 6700k with No overclocks?

Another thing that happens with this test is that every 15 seconds or so my PC completely freezes up for a few seconds and then its fine again for another 15 seconds, However there is no shutdown, But I am sure this isn't supposed to be happening is it?

The results are exactly the same on Maximum settings on Intel Burn Test as well.


 
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Viking2121

Viking2121

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May 9, 2012
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Thats not normal for a stock i7. It should be around 50 - 60c at most at stock clocks with that cpu. You do have Thermal paste between the CPU and pump block don't you? The Pump has full fan speed? I usually plug my pump directly to the PSU lead sot he pump always has full power rather then relying on my motherboards controls. If you did and everything checks out, I am willing to bet the pump is probably dead, it happens more times than I think it should.

How long have you had the h100? Im sure its still under warranty, you can contact Corsair for a replacement, they have real good customer service, my Air 540 case I've had for about 2 years the rear fan was making a grinding noise, It was just a stock 140mm gray and black fan, They replaced it with a 140mm LED fan, so they will out do themselves sometimes.
 
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B

Bullivent

Commendable
Aug 4, 2016
20
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1,510



I turned everything onto performance/max speeds , Idle temp is around 24 degrees, and on very high setting using Intel burn test, I still have the freezes and its now reaching around 75 degrees, Using Prime 95 set to Small FFT's its hitting around 80 degrees. It definitely has thermal paste on however its the pre applied thermal paste from the h100i, It's around 8 months old. Do you still think these temps are too high because if so I could take the cooler off and clean it of the old thermal paste, Apply new and see if that changes anything.

I was gaming all last night and had no shutdowns, And again no shutdowns this morning, So it is completely random when it does it.

I also got in touch with EVGA as I couldn't register my product as it wouldn't recognise the S/N and I also explained I was having problems and may need an RMA but I am still testing, They told me to explain the issues I'm having and after that they said they would happily RMA the PSU, However I want to make sure I know for sure whats causing these errors before I start doing anything like that.

 
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Viking2121

Viking2121

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May 9, 2012
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Well Considering I can keep my i7 5820k 6 core around 70c at 4.6ghz with 1.33v with a H100I GTX you should not have a problem at all. The stock thermal paste should be fine, its not really that bad compared to other stuff. to me is seems as if the pump isn't working right, or you're mother board is feeding the CPU to much power. Like I said, 80C is not normal for a stock 6700k with the h100 unless your room is uncomfortably hot then maybe.
 
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B

Bullivent

Commendable
Aug 4, 2016
20
0
1,510
Well taking on your advice, I have an advanced RMA on the cooler which is currently being shipped out to me, also I have done an advanced RMA on the power supply just in case.

The problem has got much worse now, it's happening more frequently on the desktop and when it does it now, it just constantly restarts before it even displays anything on the screen, sometimes it will get to the rog loading screen then cut off, also as I'm typing this on my phone, my PC was sat on the bios and just cut off and is now doing as described above.

I'm pretty sure it's the PSU now, and I'm starting to get quite worried that by doing it as often as it is, it's going to damage something else, is this possible?
 
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