help Multiple BSODS in 2 weeks

[Avumor]

So, in the past 2 weeks I have gotten 3 BSODS. I have done absolutely nothing at all to this PC and it had been running fine. I do not know why this happened. The first BSOD just showed that NVMDDKLL.sys or somehting like that failed. Then it showed the message driver power state failure and then today out of the blue after troubleshooting and reinstalling drivers it BSOD'D again with the message page fault in non paged area. I know what all these mean but I  wanted to know why they happened so close to each other. My laptop, a Lenovo Ideapad L340 gaming was capped at 2.4 GHZ(its base frequency) which was different from the reviews I saw about the laptop. I use Throttlestop to undervolt it and overclocked it 3.2 GHZ(WHICH IS A LOT) but it stayed in the 70s to 80s in degrees which is perfectly fine for a laptop I believe. That is all I have done and it was working fine months ago when I had the same settings applied. What can I do? Should I reinstall Windows? My laptop is still in its warranty period. I might question the Lenovo people. For some more info on the over clocking Ive posted something about it on reddit. I hope this can help you.

 

https://www.reddit.com/r/pchelp/comments/nodmbm/overclocking_help/

[Avumor]

My lockscreen also keeps changing from default to the one I set

[unclewebb]

@Avumor What are your voltage settings? The voltage requirement to run stable can change over time and it can change as summer comes and the room temperature goes up.

 

Your CPU is locked so you cannot overclock it. Intel CPUs support Turbo Boost. Using this feature is not overclocking.

 

When you change the speed the CPU is running at, the undervolt that was great at one speed might not be enough when running at the default speed. 

 

No need to reinstall Windows. Set your voltages more conservatively until the BSODs go away. What sort of stability testing have you done? Make sure the TS Bench test runs without any errors being reported. Try a few different test sizes and use a different number of threads and try using the random option too. Any errors in this test need to be avoided.

 

 

Post lots of pics of your ThrottleStop settings if you need help.

[Avumor]

Yes you are correct it wasnt an overclock rather I switched off the disable turbo setting. The temps were way too high so i brought it down to 3.2 GHZ. I think you were correct as I undervolted before I increased the cap. But after I increased the cap it was working fine too then I did it like 4-5 months ago and encountered some BSOD'S. Well, after this I made this post I switched the disable turbo boost setting on and brought the voltages to normal and went to sleep. Ill see if it happens for a week and then ill switch off the disable turbo boost setting. Thanks a lot for your help.

[Avumor]

 

 

The undervolts were at -125mv which I believe is average and were working fine and the Turbo rate limits were at 3.2GHZ. I put the undervolts on the core, cache and GPU according to videos.

[Avumor]

If u want to look at the dump files here is the google drive link to the zip file:

https://drive.google.com/file/d/1fJKLElxbn8Y1ACyR-x6jmc3liAj3zCZ4/view?usp=sharing

  

[Avumor]

@unclewebb I believe I need to mention you

[unclewebb]

3 hours ago, Avumor said:

The temps were way too high

What is your definition of too high? Intel designs their CPUs so that they can run reliably up to 100°C. That is why Intel has been setting the thermal throttling temperature to 100°C for the last 12+ years since the first Core i was introduced. Your screenshot shows that Lenovo has low balled the thermal throttling temperature down to 94°C instead of the full 100°C that Intel specifies is OK for your CPU. There is no possibility that it will ever run too hot. Thermal throttling will kick in prematurely to prevent that from ever happening.  

 

Try upgrading to ThrottleStop 9.3 or 9.3.1. With Lenovo laptops, I would check the Lock PROCHOT Offset in the Options window. Not only does Lenovo set PROCHOT Offset too conservatively but some of their laptops also have a feature where the thermal throttling temperature can change while you use your laptop. It is best to lock this setting to prevent this from happening. 

 

The default voltage curve is for reliable operation with turbo boost enabled. Most 9300H are stable with an undervolt of -125 mV but it is never a good idea to copy and paste some voltage settings that you found on the internet. All CPUs are unique. When you change the voltage, you have to run a variety of stress tests to prove that your settings are 100% stable. It is not a bad idea to retest your computer on a regular basis. The voltage requirement can change over time.

 

Most people using -125 mV are running the CPU at its full rated speed. They are not disabling turbo boost. A voltage setting that is stable at 4000 MHz might not be stable at 2400 MHz. When undervolting, if you ever see a BSOD, your CPU is telling you that it needs more voltage. Keep increasing the voltage until all of the BSODs go away. Better yet, run your CPU at its rated speed. No need to baby it. 

 

Your screenshot shows that your CPU is using microcode version 0xDE. One user recently told me that his laptop was having some issues after installing this update. The voltage your CPU needed to be stable 6 months ago might be completely different now after this update has been installed. I am not sure if this was from a recent BIOS update you did or just a Windows Update.

 

I use Sledgehammer so I have some control over what updates are being installed. I hate being a guinea pig for Microsoft and Intel. 

 

https://www.majorgeeks.com/files/details/wumt_wrapper_script.html

 

I would recommend not undervolting the Intel GPU. When playing games, you are probably using a Nvidia GPU. Undervolting the Intel GPU can cause instability without making any significant difference to power consumption. It is not really being used when gaming. 

[Avumor]

I believe that my temps were reaching at 91 degrees when I let it run at its rated frequency. I've read that the chassis might also kill the laptop cause of the heat but I am not to sure. I didn't feel comfortable running it at such temps as in a review it was running at 85 degrees at 3.8GHZ. Will it be good in the long run? If its normal then I migth start undervolting it slowly. Thank you for all your information.

[Avumor]

And are those temperature ok to run for 2-3 hours under heavy load?

[unclewebb]

4 hours ago, Avumor said:

temps were reaching at 91 degrees

This is a normal operating temperature according to Intel. The engineers that build gaming laptops are well aware that people will use these laptops to play games for extended periods of time. They also know that Intel CPUs can run reliably at high temperatures. If a company is building laptops for gaming, I am pretty sure that their designs are allowed to run all day while a game benchmark is looping. The engineers probably play a few games too just to make sure everything is working OK.  

 

4 hours ago, Avumor said:

Will it be good in the long run?

No one knows the answer to that question. If hot running laptops were constantly failing then manufacturers would redesign their laptops so they did not run so hot. All gaming oriented laptops run HOT so I have to assume that this is not a major problem.

[Avumor]

Thank you for your help. Up until now I havent BSOD'D and just in case i also have used ddu to uninstall my graphics driver and have reinstalled it.