[closed] unexpected kernel mode trap | Legion Series | Page 1

neon rock Oct 9, 2022, 11:34 PM

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Model: Legion7i 2022
Describe the issue: Crashed to blue screen restart 3 times with the error "unexpected kernel mode trap"

What have you tried already?: Removed undervolting from throttle stop however happened changed ratio on E cores.
Done windows memory diagnostic as a quick google result displayed it could be ram issue and suggested to run the test.

When did it start producing the issue: Last changes made, updating bios to 31ww to enable overclock, ddu + new nvidia drivers, adjustment of undervolting using Throttlestop, disabled windows 11 pro updates through registry.
Error happened a good 3-4 hours after changes.

I had a work assessment running on Firefox with webcam open, I had to go out so closed the laptop lid without putting it to sleep or shutting down, as soon as I opened lid, the error popped up

Did you install new drivers or software?: Yes new gpu drivers, bios update as stated above and software would be pycharm and anaconda(python)

Can you provide images/videos to show us the issue: n/a but it was just blue screen with that error and restart.

neon rock Oct 10, 2022, 11:58 AM

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~~day 2 of same issue: Games having micro stutter in the beginning~~ - ruled out, i launched game right after heavy benchmark in xtu, probably the reason for initial stutter.

formal solar Oct 10, 2022, 5:17 PM

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can you tell us what kind of tweaks you are currently runnning?

neon rock Oct 10, 2022, 6:56 PM

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speed shift epp- 32

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cpu core: -90mv
cpu p cache: -50mv
cpu e cache: -50mv
system agent: -50mv

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nothing apart from this.

formal solar Oct 10, 2022, 6:59 PM

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your bios version?

neon rock Oct 10, 2022, 7:26 PM

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BIOS Version/Date LENOVO K1CN31WW, 08/07/2022

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I updated it same day when I encountered the error, but the time of error and bios update was 4-5 hours apart

formal solar Oct 11, 2022, 10:24 AM

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do you still get the bsod?

neon rock Oct 11, 2022, 10:28 AM

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neon rock cpu core: -90mv cpu p cache: -50mv cpu e cache: -50mv system agent: -50mv

Got it yesterday once but its been running since then.
You reckon to undervolt more from there? ik all chips have different values

formal solar Oct 11, 2022, 10:30 AM

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neon rock Got it yesterday once but its been running since then. You reckon to undervolt m...

i would have actually suggested to remove all the undervolt and run to see if it keeps happening tbh

neon rock Oct 11, 2022, 10:32 AM

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its running stable on -90, i did 2 hours of stress testing and 3hours game, was running fine

formal solar Oct 11, 2022, 10:34 AM

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doesn't mean it is stable tbh
certain loads can trigger instability

neon rock Oct 11, 2022, 10:40 AM

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formal solar doesn't mean it is stable tbh certain loads can trigger instability

all bsods that happened were in game thats why I am trying to stress test games
anything else you can think of that I should stress test it into?

neon rock Oct 11, 2022, 7:34 PM

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@formal solar sorry to tag you but how can I completely remove throttlestop tweaks?

formal solar Oct 11, 2022, 7:35 PM

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delete throttlestop.ini

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then reboot

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if still persist

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just force restart

neon rock Oct 11, 2022, 7:35 PM

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the last file?

formal solar Oct 11, 2022, 7:36 PM

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yeppers

neon rock Oct 11, 2022, 7:37 PM

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there was running lines on my screen in rotr game, hopefully its drivers and not the screen

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hehe

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do you recommend a fresh install of drivers again? i did it two days back btw

formal solar Oct 11, 2022, 7:52 PM

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observe

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it is not ideal to try multiple things at once
as it would make trying to figure out the cause harder

neon rock Oct 11, 2022, 7:53 PM

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laptop just auto restarted by itself
screen went black for 2-3 seconds then restarted

formal solar Oct 11, 2022, 7:53 PM

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PES_Think

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check with hwinfo if ttstop uv have been removed

tribal ledge Oct 11, 2022, 7:54 PM

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?

neon rock Oct 11, 2022, 7:54 PM

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formal solar check with hwinfo if ttstop uv have been removed

sorry where can i check it in hwinfo? i have it open

formal solar Oct 11, 2022, 7:54 PM

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voltage offset

neon rock Oct 11, 2022, 7:54 PM

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tribal ledge ?

yo i tagged you my mistake earlier lol

tribal ledge Oct 11, 2022, 7:54 PM

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Lol oh ok

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New bios update rollout or what?

neon rock Oct 11, 2022, 7:55 PM

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says 0.000v on offsets, guess it been removed?

formal solar Oct 11, 2022, 8:07 PM

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yes

#[closed] unexpected kernel mode trap