Question Games stutters, is my PSU failing?

Apr 5, 2021
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Failing PSU? Game stutters pretty much fixed after turning off CPU overclock - but worked fine with OC before ?

I've been trying to diagnose an issue with my games micro-stuttering. The issue initially started out of no where with no issues previously. I noticed the lamp on desk would flicker when the stutters would get worse. I thought it might have been house power. Tested it out at another house, still got the micro-stutters. I got a BSOD that said BattleEye was the culprit upon opening Tarkov (game). PC restarted fine. Then the next morning I had to switch the PSU power button off and then on to start the computer up again. The other day I set my BIOS to default settings, and re enabled XMP (effectively un-doing CPU overclock), and micro stutters are pretty much gone, but still have been experiencing some random FPS drops. Could it be my PSU? I am also starting to get some audio clicks and crackling.

Edit; Reverting overclock ended up not being a fix.


3080
i7-7700k
EVGA P2 750W
32GB
ASUS - ROG STRIX Z490

Thank you in advance!


Latency mon results:
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CONCLUSION

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Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. At least one detected problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.

LatencyMon has been analyzing your system for 0:46:13 (h🇲🇲ss) on all processors.

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SYSTEM INFORMATION

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Computer name: DESKTOP-UMHTA6C

OS version: Windows 10, 10.0, version 2009, build: 19042 (x64)

Hardware: System Product Name, ASUS

CPU: GenuineIntel Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz

Logical processors: 16

Processor groups: 1

RAM: 32669 MB total

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CPU SPEED

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Reported CPU speed: 3792 MHz

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.

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MEASURED INTERRUPT TO USER PROCESS LATENCIES

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The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.

Highest measured interrupt to process latency (µs): 882.90

Average measured interrupt to process latency (µs): 3.229831

Highest measured interrupt to DPC latency (µs): 881.50

Average measured interrupt to DPC latency (µs): 1.294563

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REPORTED ISRs

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Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.

Highest ISR routine execution time (µs): 314.778481

Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.000531

Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Total time spent in ISRs (%) 0.001038

ISR count (execution time <250 µs): 357219

ISR count (execution time 250-500 µs): 0

ISR count (execution time 500-1000 µs): 1

ISR count (execution time 1000-2000 µs): 0

ISR count (execution time 2000-4000 µs): 0

ISR count (execution time >=4000 µs): 0

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REPORTED DPCs

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DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.

Highest DPC routine execution time (µs): 2232.060654

Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 465.89 , NVIDIA Corporation

Highest reported total DPC routine time (%): 0.005182

Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in DPCs (%) 0.013637

DPC count (execution time <250 µs): 1190346

DPC count (execution time 250-500 µs): 0

DPC count (execution time 500-10000 µs): 201

DPC count (execution time 1000-2000 µs): 3

DPC count (execution time 2000-4000 µs): 11

DPC count (execution time >=4000 µs): 0

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REPORTED HARD PAGEFAULTS

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Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted and blocked from execution.

NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.

Process with highest pagefault count: msmpeng.exe

Total number of hard pagefaults 28090

Hard pagefault count of hardest hit process: 21427

Number of processes hit: 47

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PER CPU DATA

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CPU 0 Interrupt cycle time (s): 35.736077

CPU 0 ISR highest execution time (µs): 227.837025

CPU 0 ISR total execution time (s): 0.419123

CPU 0 ISR count: 282971

CPU 0 DPC highest execution time (µs): 2232.060654

CPU 0 DPC total execution time (s): 4.969470

CPU 0 DPC count: 945996

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CPU 1 Interrupt cycle time (s): 17.797567

CPU 1 ISR highest execution time (µs): 19.736814

CPU 1 ISR total execution time (s): 0.003675

CPU 1 ISR count: 4298

CPU 1 DPC highest execution time (µs): 362.325422

CPU 1 DPC total execution time (s): 0.086327

CPU 1 DPC count: 9565

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CPU 2 Interrupt cycle time (s): 23.686860

CPU 2 ISR highest execution time (µs): 1.844937

CPU 2 ISR total execution time (s): 0.000016

CPU 2 ISR count: 21

CPU 2 DPC highest execution time (µs): 529.367089

CPU 2 DPC total execution time (s): 0.196691

CPU 2 DPC count: 38182

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CPU 3 Interrupt cycle time (s): 20.839608

CPU 3 ISR highest execution time (µs): 0.0

CPU 3 ISR total execution time (s): 0.0

CPU 3 ISR count: 0

CPU 3 DPC highest execution time (µs): 400.402954

CPU 3 DPC total execution time (s): 0.094902

CPU 3 DPC count: 21922

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CPU 4 Interrupt cycle time (s): 21.595819

CPU 4 ISR highest execution time (µs): 0.0

CPU 4 ISR total execution time (s): 0.0

CPU 4 ISR count: 0

CPU 4 DPC highest execution time (µs): 578.861814

CPU 4 DPC total execution time (s): 0.347290

CPU 4 DPC count: 67243

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CPU 5 Interrupt cycle time (s): 16.339986

CPU 5 ISR highest execution time (µs): 0.0

CPU 5 ISR total execution time (s): 0.0

CPU 5 ISR count: 0

CPU 5 DPC highest execution time (µs): 392.283755

CPU 5 DPC total execution time (s): 0.007736

CPU 5 DPC count: 1334

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CPU 6 Interrupt cycle time (s): 17.486384

CPU 6 ISR highest execution time (µs): 0.0

CPU 6 ISR total execution time (s): 0.0

CPU 6 ISR count: 0

CPU 6 DPC highest execution time (µs): 550.405591

CPU 6 DPC total execution time (s): 0.084738

CPU 6 DPC count: 17297

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CPU 7 Interrupt cycle time (s): 17.199496

CPU 7 ISR highest execution time (µs): 0.0

CPU 7 ISR total execution time (s): 0.0

CPU 7 ISR count: 0

CPU 7 DPC highest execution time (µs): 383.904536

CPU 7 DPC total execution time (s): 0.050681

CPU 7 DPC count: 22305

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CPU 8 Interrupt cycle time (s): 13.021595

CPU 8 ISR highest execution time (µs): 0.0

CPU 8 ISR total execution time (s): 0.0

CPU 8 ISR count: 0

CPU 8 DPC highest execution time (µs): 475.004219

CPU 8 DPC total execution time (s): 0.052816

CPU 8 DPC count: 17636

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CPU 9 Interrupt cycle time (s): 12.172562

CPU 9 ISR highest execution time (µs): 0.0

CPU 9 ISR total execution time (s): 0.0

CPU 9 ISR count: 0

CPU 9 DPC highest execution time (µs): 286.199367

CPU 9 DPC total execution time (s): 0.007596

CPU 9 DPC count: 1847

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CPU 10 Interrupt cycle time (s): 12.223517

CPU 10 ISR highest execution time (µs): 0.0

CPU 10 ISR total execution time (s): 0.0

CPU 10 ISR count: 0

CPU 10 DPC highest execution time (µs): 165.089135

CPU 10 DPC total execution time (s): 0.038535

CPU 10 DPC count: 14038

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CPU 11 Interrupt cycle time (s): 11.722003

CPU 11 ISR highest execution time (µs): 0.0

CPU 11 ISR total execution time (s): 0.0

CPU 11 ISR count: 0

CPU 11 DPC highest execution time (µs): 71.990506

CPU 11 DPC total execution time (s): 0.005647

CPU 11 DPC count: 1721

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CPU 12 Interrupt cycle time (s): 14.384764

CPU 12 ISR highest execution time (µs): 314.778481

CPU 12 ISR total execution time (s): 0.003014

CPU 12 ISR count: 4158

CPU 12 DPC highest execution time (µs): 152.227321

CPU 12 DPC total execution time (s): 0.033190

CPU 12 DPC count: 13452

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CPU 13 Interrupt cycle time (s): 16.861720

CPU 13 ISR highest execution time (µs): 188.137658

CPU 13 ISR total execution time (s): 0.034702

CPU 13 ISR count: 65772

CPU 13 DPC highest execution time (µs): 371.780591

CPU 13 DPC total execution time (s): 0.028796

CPU 13 DPC count: 4896

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CPU 14 Interrupt cycle time (s): 15.569779

CPU 14 ISR highest execution time (µs): 0.0

CPU 14 ISR total execution time (s): 0.0

CPU 14 ISR count: 0

CPU 14 DPC highest execution time (µs): 384.422468

CPU 14 DPC total execution time (s): 0.036075

CPU 14 DPC count: 11305

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CPU 15 Interrupt cycle time (s): 14.171902

CPU 15 ISR highest execution time (µs): 0.0

CPU 15 ISR total execution time (s): 0.0

CPU 15 ISR count: 0

CPU 15 DPC highest execution time (µs): 358.146624

CPU 15 DPC total execution time (s): 0.010169

CPU 15 DPC count: 1822
 
Last edited:

Lutfij

Titan
Moderator
Then the next morning I had to switch the PSU power button off and then on to start the computer up again.
That usually is an indication of either the PSU degrading or ending up being faulty or that the power/wiring in your house lacks proper grounding. It's most definitely power related. Also, how old is the PSU in your platform?

What BIOS version are you working with on your motherboard? Version for your OS? You should ideally be on version 20H2 for Windows 10. One very big oddity, how on Earth do you have a 7th gen i7 K suffix processor paired with a Z490 chipset motherboard?
 
Apr 5, 2021
7
1
15
0
Then the next morning I had to switch the PSU power button off and then on to start the computer up again.
That usually is an indication of either the PSU degrading or ending up being faulty or that the power/wiring in your house lacks proper grounding. It's most definitely power related. Also, how old is the PSU in your platform?

What BIOS version are you working with on your motherboard? Version for your OS? You should ideally be on version 20H2 for Windows 10. One very big oddity, how on Earth do you have a 7th gen i7 K suffix processor paired with a Z490 chipset motherboard?

My bad, I meant to type 10700k! I had thought it might have been the power in the house but I was still having stuttering issues at my parents as well. PSU is only a few months old. Is it possible that a faulty PSU would cause my lamp to also fluctuate?

BIOS: American Megatrends 1/13/2021
SMBIOS: 3.2
Embedded Controller version: 255.255
Mode: UEFI
Baseboard version: Rev 1.xx

And I am on 20H2.
 
Last edited:
Apr 5, 2021
7
1
15
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So I reinstalled Nvidia drivers with DDU and I experienced the most stutterless/stable fps I've seen since before the issue arose and I totally thought I figured out the issue since I thought I had forgotten to do that beforehand, and everything was good for like 2-3 hours, then the stuttering came back. Latencymon tests are coming clean, and they weren't before running DDU. I swear games were running even better than before the issues came about. I am so let down. This just confuses me even more. Any ideas?
 
Last edited:
Apr 5, 2021
7
1
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I'm going to update BIOS, do a fresh install of Windows...if still happening, try a new PSU..if still not working get an electrician...

Should I update BIOS before or after Windows install or does the order not matter?
 
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