[SOLVED] Audio and video stutters in games and in Youtube ?

Jan 19, 2022
I am experiencing audio and video stutters in games and in Youtube. They are very very rare but still happen from time. The stutters are very brief in nature under a second.

What I've tried and made sure is: I am running the latest BIOS, drivers, firmware updates for the drives, windows updates. Windows was cleaned installed.
I have also tried uninstalling the video drivers with DDU and installing it a new.The issue occurs with the old nvidia 497.29 and the new 511.23.The issue also occurs with two different video cards. (Both are nvidia) I do not know however if this is a video driver issue. At this point I have no idea what might be the issue (faulty hardware, drivers, windows, other).

The system in question consist of 5600x, asus b550 tuf gaming plus, mx500+kc2500 ssd, 32gb Ram,1070 FE/3070, corsair rm750x, Windows 10 pro. Everything is at stock and no OC anywhere after installing windows, other then choosing the xmp2.0 profile in bios.

I also have the info from running a LatencyMon but I do not know how to read it to isolate the problem (the only thing familiar in it was the nvidia driver which i tried already to re-install on 2 different cards). Can anyone please guide me to what might be causing the issue?

Latency mon details follow:

View: https://imgur.com/a/Sursdwe

Your system seems to be having difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. One or more DPC routines that belong to a driver running in your system appear to be executing for too long. 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 1:27:21 (h🇲🇲ss) on all processors.

Computer name: DESKTOP-7NTSCGA
OS version: Windows 10, 10.0, version 2009, build: 19042 (x64)
Hardware: System Product Name, ASUS
BIOS: 2423
CPU: AuthenticAMD AMD Ryzen 5 5600X 6-Core Processor
Logical processors: 12
Processor groups: 1
Processor group size: 12
RAM: 32683 MB total

Reported CPU speed (WMI): 3701 MHz
Reported CPU speed (registry): 370 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.

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): 540.10
Average measured interrupt to process latency (µs): 4.311904

Highest measured interrupt to DPC latency (µs): 537.80
Average measured interrupt to DPC latency (µs): 1.754631

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): 64.020
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.002941
Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Total time spent in ISRs (%) 0.003153

ISR count (execution time <250 µs): 667504
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-1000 µs): 0
ISR count (execution time 1000-2000 µs): 0
ISR count (execution time 2000-4000 µs): 0
ISR count (execution time >=4000 µs): 0

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): 1017.930
Driver with highest DPC routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total DPC routine time (%): 0.050185
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 511.23 , NVIDIA Corporation

Total time spent in DPCs (%) 0.121181

DPC count (execution time <250 µs): 12500545
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-10000 µs): 34
DPC count (execution time 1000-2000 µs): 1
DPC count (execution time 2000-4000 µs): 0
DPC count (execution time >=4000 µs): 0

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: witcher3.exe

Total number of hard pagefaults 9245
Hard pagefault count of hardest hit process: 4758
Number of processes hit: 40

CPU 0 Interrupt cycle time (s): 247.003222
CPU 0 ISR highest execution time (µs): 64.020
CPU 0 ISR total execution time (s): 1.703677
CPU 0 ISR count: 417002
CPU 0 DPC highest execution time (µs): 1017.930
CPU 0 DPC total execution time (s): 73.454145
CPU 0 DPC count: 11863478
CPU 1 Interrupt cycle time (s): 12.106218
CPU 1 ISR highest execution time (µs): 12.240
CPU 1 ISR total execution time (s): 0.226473
CPU 1 ISR count: 122119
CPU 1 DPC highest execution time (µs): 94.810
CPU 1 DPC total execution time (s): 1.210879
CPU 1 DPC count: 117574
CPU 2 Interrupt cycle time (s): 8.155116
CPU 2 ISR highest execution time (µs): 9.020
CPU 2 ISR total execution time (s): 0.003842
CPU 2 ISR count: 839
CPU 2 DPC highest execution time (µs): 161.10
CPU 2 DPC total execution time (s): 0.127954
CPU 2 DPC count: 156493
CPU 3 Interrupt cycle time (s): 4.793196
CPU 3 ISR highest execution time (µs): 2.720
CPU 3 ISR total execution time (s): 0.000067
CPU 3 ISR count: 46
CPU 3 DPC highest execution time (µs): 41.260
CPU 3 DPC total execution time (s): 0.004529
CPU 3 DPC count: 1349
CPU 4 Interrupt cycle time (s): 11.297544
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): 160.50
CPU 4 DPC total execution time (s): 0.316311
CPU 4 DPC count: 82897
CPU 5 Interrupt cycle time (s): 11.021245
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): 160.490
CPU 5 DPC total execution time (s): 0.206642
CPU 5 DPC count: 55664
CPU 6 Interrupt cycle time (s): 7.156597
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): 139.040
CPU 6 DPC total execution time (s): 0.071246
CPU 6 DPC count: 37590
CPU 7 Interrupt cycle time (s): 3.764807
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): 41.520
CPU 7 DPC total execution time (s): 0.001726
CPU 7 DPC count: 646
CPU 8 Interrupt cycle time (s): 6.481539
CPU 8 ISR highest execution time (µs): 9.850
CPU 8 ISR total execution time (s): 0.023615
CPU 8 ISR count: 73150
CPU 8 DPC highest execution time (µs): 47.450
CPU 8 DPC total execution time (s): 0.069234
CPU 8 DPC count: 16334
CPU 9 Interrupt cycle time (s): 5.387266
CPU 9 ISR highest execution time (µs): 3.60
CPU 9 ISR total execution time (s): 0.001059
CPU 9 ISR count: 2267
CPU 9 DPC highest execution time (µs): 52.60
CPU 9 DPC total execution time (s): 0.016792
CPU 9 DPC count: 4039
CPU 10 Interrupt cycle time (s): 12.112530
CPU 10 ISR highest execution time (µs): 6.860
CPU 10 ISR total execution time (s): 0.012395
CPU 10 ISR count: 26078
CPU 10 DPC highest execution time (µs): 183.50
CPU 10 DPC total execution time (s): 0.391675
CPU 10 DPC count: 85590
CPU 11 Interrupt cycle time (s): 12.578666
CPU 11 ISR highest execution time (µs): 17.360
CPU 11 ISR total execution time (s): 0.012192
CPU 11 ISR count: 26003
CPU 11 DPC highest execution time (µs): 190.270
CPU 11 DPC total execution time (s): 0.346240
CPU 11 DPC count: 78926
Last edited:
Jan 19, 2022
So like I suspected it was not a video driver.

Solution came after I googled all the errors I was getting in Event viewer just after starting the PC, and stumbled onto this:
Amd ftpm causing random stuttering with some workarounds inside.

And the official thread on amd forums with no resolution:

The only solution for me is currently stay on W10 and disable tpm2.0 (fTPM).
Good luck

p.s. maybe moderators can move this thread to the CPU forums since that is what is causing the problem, or to Motherboard forums, since this will need BIOS update and fix from the manufacturers,
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