Question "Kernel-Power 41" restarting my PC under high load games ?

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Jul 24, 2022
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-PC has been restarting whilst playing games with heavy load in the last month after i have replaced motherboard and CPU.
-In event viewer it will say Kernal power 41
dddd.PNG


CPU - AMD Ryzen 5 5600X 6-Core Processor 3.70 GHz
GPU - NVIDIA GeForce RTX 3070 (Driver version 516.59)
PSU - Cooler Master 850v2 full modular
MB - B450 Tomahawk MAX II (MS-7C02)
Memory - 2x16 DDR4 Corsair 3200mhz

-Games it has happened in (Escape from Tarkov, Hell let loose, Apex Legends)
-The exact scenario is, that i am playing the said game and i can play around in the menu's and all that for hours. But as soon as i decide to load into a game i play with normal fps for roughly 5mins and then it'll just randomly restart my PC with no warning, just black screen and restarting. But sometimes i wont have an issue at all but the next day it will start happening again.
- i have tried playing Tarkov as soon as I reinstalled my parts and that's when i first started to notice the issues. i had read on Tarkov forums and people saying that its just in recent updates and stuff similar so i gave up on fixing the issue. until days ago i tried playing Hell Let Loose and it did exactly the same as when playing Tarkov.

-I have installed my new CPU, Motherboard and SSD at the same time.
-i thought it could be the SSD (970 EVOPlus) but i have moved games from across different drives and the error still occurs.


-I have read many other forums and they also have mentioned it being a PSU, i did replace mine and nothing had changed/error still occurs.
-I have also seen people saying it could be GPU related, so i used a known good GPU and issues still occur.
-I have changed out my new ram with old ram and the issue still occurs.
-Have also enabled XMP profiles 1 & 2 and errors still occur.
-My GPU drivers are all up to date
-Have performed several stress tests on GPU, CPU, PSU, did a memtest64 and it was all fine.
-Have performed this test "DISM /Online /Cleanup-image /RestoreHealth" in CMD and it came up with issues then followed up with " sfc /scannow" after that i did an "in-place repair" which downloaded an ISO and then i did a "repair install" (I have just basically followed this forum and i did have corrupted files and i updated windows but the issue still occurs - https://answers.microsoft.com/en-us...rruption/32c68c1b-d153-4338-83ec-17bcf130fe6d)
-I have Malware-bytes and performed multiple scans and nothing is detected.
-I've checked my 24pin plug to MB and its secure, ram is secure, GPU is secure, temps are fine.
-Have also done a CMOS repair or something where i short 2 pins on the MB for 10sec and that didn't fix anything
-Have disabled all programs from running on start up.


DXDIAG

dxdiag.PNG



My last option if nothing else is achieved is to run this script my friend sent me - https://old.reddit.com/r/TronScript/wiki/index
 
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The B450 Tomahawk max II can handle over 3200, with a Zen 3 chip. Also 2x16gb is perfectly fine. If it was 4x16gb then maybe I could see it being something the board was having trouble handling.

https://www.msi.com/Motherboard/B450-TOMAHAWK-MAX-II/Specification



OP: There is something else, that I just thought of. Is your bios up to date? It looks like MSI finally released an Agesa 1.2.0.7 update. If you are on 1.2.0.6, it could be the problem.

https://www.msi.com/Motherboard/B450-TOMAHAWK-MAX-II/support

Yes, that's very true. Jonnyguru has pointed out that MSi mobo's have issue with RTX cards, with symptoms very like a PSU issue. He mentioned a bios update fixes the issue. I'm pretty sure 1.2.0.6 included that, but not certain.
 
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shADy81

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OP haven't disclosed to us, what his previous PSU was. Could've been completely different make and model. IF it was the same CM unit, then i wouldn't be surprised of the poor quality of CM units.

In the same sense, Thermaltake PSUs are also best avoided. There are few good units Tt produces but bulk of them is sub-par. Same essentially goes to EVGA as well. While SuperNova series should be good, there are variants that are bad, e.g G5.

All-in-all, end consumer should not thread themselves through the PSU lineups to look what is good and what is not. Sadly, in PSU world, you can't buy an unit based on it's price alone. You actually have to dive deep into reviews and read if the PSU is any good. And even then, you may end up on a lemon, but for that, there is RMA and warranty.

Some Coolermaster models are dogs, yes, and some Thermaltake are. That doesnt mean its a QC issue but a flaw of the actual designs used in their poorer models.

This is all cross talk anyway and useless to OP. Point is, I'd be ruling out other things before just changing the PSU a second time.

Possibility its related to CPU power states? Cool and Quiet etc?

I don't think you watched the video through, otherwise you would have picked up on the transients and roughly how they are calculated.

for RTX3xxx the transients are typically 2.5x the TGP
for RTX2xxx the transients are typically 2.0 x the TGP
and even for GTX1xxx they also have spikes, but only to the order of 1.5 x.

So with that in mind a 3070 with a TGP of 220w would require approx 550w for the GPU alone, with another lets say 200w for the system (depending on CPU) and another 100w for clearance.

So with that said, a very good quality 850w would suffice just fine.

Of course you to have AIB partners with higher power options, so the spikes can increase when removing power restrictions. Another thing to factor into transient spikes.

A RTX3090 on the other hand, would need 875w for just the GPU alone, with an additional 300w for other components and some clearance.

The good news is that when RTX4xxx comes around (with 3 x TGP spikes), with reported TGP being massive, we will soon need to have a 1.2kw PSU just to get by!! :tearsofjoy:

What do you make of Techpowerups 20ms spike charts in that case? Are the spikes you mention even shorter?
 
Some Coolermaster models are dogs, yes, and some Thermaltake are. That doesnt mean its a QC issue but a flaw of the actual designs used in their poorer models.

This is all cross talk anyway and useless to OP. Point is, I'd be ruling out other things before just changing the PSU a second time.

Possibility its related to CPU power states? Cool and Quiet etc?



What do you make of Techpowerups 20ms spike charts in that case? Are the spikes you mention even shorter?

I'm not sure. I've not seen the charts. Can you link them? I'd be interested to know.
 
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shADy81

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I'm not sure. I've not seen the charts. Can you link them? I'd be interested to know.
https://www.techpowerup.com/review/evga-geforce-rtx-3080-ti-ftw3-ultra/34.html

The last chart at the bottom. Shows 531W max spike for this particular EVGA 3080Ti review card.

https://www.techpowerup.com/review/msi-geforce-rtx-3090-ti-suprim-x/38.html

Or this 3090Ti shows 567W for card only. Methodology states they have some form of inline power measurment on the PCI-E slot and cables.
 
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https://www.techpowerup.com/review/evga-geforce-rtx-3080-ti-ftw3-ultra/34.html

The last chart at the bottom. Shows 531W max spike for this particular EVGA 3080Ti review card.

https://www.techpowerup.com/review/msi-geforce-rtx-3090-ti-suprim-x/38.html

Or this 3090Ti shows 567W for card only. Methodology states they have some form of inline power measurment on the PCI-E slot and cables.
Cheers mate.

Hmm, yeah the power spikes seem a little lower in the chart, than I'd expect based on Gamer Nexus guide. But, in fairness to them, it's just ballpark numbers (Gamer Nexus). Similarly, as I mentioned the ratio, I'm just averaging/ballparking for illustration.
 

shADy81

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Cheers mate.

Hmm, yeah the power spikes seem a little lower in the chart, than I'd expect based on Gamer Nexus guide. But, in fairness to them, it's just ballpark numbers (Gamer Nexus). Similarly, as I mentioned the ratio, I'm just averaging/ballparking for illustration.

Just interested because I recommend in other places and hadnt heard of the figures you mentioned. I think with even Ryzen 5950X quality 850 watts gets you there even with up to 3080Ti, 1000w might just be tight for a 12900K with power limits removed and 3090.

Anyway OP should also update BIOS to latest right? Hadnt heard of that, might help if RAM is part of issue as well. Good call.
 
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Just interested because I recommend in other places and hadnt heard of the figures you mentioned. I think with even Ryzen 5950X quality 850 watts gets you there even with up to 3080Ti, 1000w might just be tight for a 12900K with power limits removed and 3090.

Anyway OP should also update BIOS to latest right? Hadnt heard of that, might help if RAM is part of issue as well. Good call.

Yes, defo update bios. Then if problems persist, can look at PSU replacement, or other issues.
 

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