i7-7700k OC Help Needed, Any advice would be appreciated.

necronikka

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Mar 14, 2014
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Hey there,

I have had a kernel-41 issue for a while with my built rig from a year ago.

At first I assumed hardware or some sort and have been troubleshooting the completely wrong way for months, but sources led me to believe instability is causing the issue with the dynamic overclocking.

The kernel 41's are very intermittent, could be 3 times in a day, could be days, could be a full month before my PC randomly restarts itself, whether it's IDLE or not, mostly noticed it occurs more when IDLE though.

I posted about it a while ago and someone had a similar issue, and they told me what fixed it for them.

I reference this post for this.

http://www.tomshardware.com/answers/id-3642480/windows-kernel-power-critical-event-6008.html

It seems he turned off EIST and it fixed his issue. (his English wasn't great and he isnt' sure what he did to fix it) but his other options I tried, never thought about overclocking instability until I got an answer like this. It seems I've been going about my issue the entire wrong way, as of now, I am using the auto over clock feature OC GENIE 4, which turns off C states and turbo and eist and keeps a constant 4.8 clock (temps never go above 70 on the cpu). I am doing this as testing purposes and just did so yesterday.

I've done hours of research on Cstates, etc. So I do know what they do. But my board does not let me choose which cstates to enable, only a "package" from c0 to c9 or leave it to auto, this is where I am entirely confused.

Other research is on this on what to do is difficult as well, I need the c states as I do not need a constant overclock like this, it is a waste of power and I run my pc 24/7, so this is an issue. Research tell me "disable c states and keep c1e enabled" but if I disable c-states I cannot enable c1e as that seems to be part of it. Other research says keep c3 and c6 enabled (I'm assuming that's old info since I can go up to c9), but I can only choose a package.

I never overclocked before because I never had the need to, but dynamic overclocking I am loving. But it's causing instability. Also, c1e was disabled by default on my board upon checking while EIST was enabled, not sure if that could have been the issue?

My build is

32gb of corsair vengeance ddr 4 2666mhz ram
mobo msi z270 sli plus
cpu - i7 - 7700k
gpu - gigabyte GTX 1080 gaming edition (which apparently clocks itself via gpu boost dymanicaly as well).

TLDR, I 'm trying to figure out how to keep my dynamic clocking on my cpu so it's no longer unstable. Does anyone have any ideas?
 

ehmkec

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Aug 31, 2017
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I have a 7700k and a MSI mobo (x270 Titanium) and I am so sorry to hear your problems. The only tweaks I have made to my mobo are to the fans. Everything else is default. You should be able to run this way also - with no power breaks.

Get a computer monitor - I suggest HWinfo64 - and run it through a session to see if any thermals are tripping before the 41. If it is not a thermal trip then it has to be a defective power component or a short.

Do you have on-board gpu? If so use it for the next steps.

I suggest you:

1: reset cmos
2: Remove cpu, blow everything with a can of air, and carefully re-seat it. Blow behnd the mobo to insure a metal piece did not get behind it.
3: Remove power cables to everything and re-seat them. (both ends of cables)

(I know - you are thinking - 'I have done all those things.')

Get back to me with your results or general feelings about my suggestions. I believe you have a bad component and I will help you find it rather than tweak it to cover it up.

Thanks

 

necronikka

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Mar 14, 2014
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I have not reset the cmos, or reseat the cpu (I've read that fixed this mystery issue in some cases as well), but I ran the onboard cpu graphics for a while with no issues. So at this point I'm using the OC genie to test if it restarts and it has not yet and it's been a full day.

It could be hardware related, I even have an RMA ready for the GPU the lasts 30 days as of today. I have reseated power cables though.


Being strickly honest my heatsink is a real pain, so I have avoided reseating the cpu for that reason because my case is so complicated I have to get it out from the back of the board through part of the case and it a major hassle to put back in. (lazy I know, just didn't want to do extraneous work when it could be something simple)

In regards to the software you mentioned, is that a stress test of some sort that would tell me if there's a trip? I am at work so I cannot do so at the moment.

Also, on your board, was c1e enabled or disabled by default? Ours are similar but I am curious if this should be turned on to begin with.
 

necronikka

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Mar 14, 2014
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I ran that software it seemed to look all fine... but OC genie has been running full throttle with no issues. Even more reason to suspect a setting in the bios, specificually c1e. If not my next steps would be to disable EIST since that's not too high of an OC at 4.4 from a 4.2. If not fails disable it altogether. More or less the last piece of any software related things I have not isolated from but it's leading to be the issue based on not having rebooted yet without any dynamic OC.
 

necronikka

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Mar 14, 2014
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I have never manually done an OC except for RAM, and I don't want my PC to maintain a ridiculous clock IDLe, so if that's the case and I can't do dynamic I am at a loss since I don't wanna fry my $2000 rig. :| lol, I've also heard from a fellow IT guy I work with that he has a similar issue where his motherboard just didn't like his RAM, it would hit a buffer at random times and restart, so he had to underclock it, and if THAT'S an issue, I have no idea what timings I'd cause i'd clock it to 2400.
 

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