X370 Gaming K4 High DPC Latency in Win10
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=4663
Printed Date: 10 May 2025 at 2:54am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X370 Gaming K4 High DPC Latency in Win10
Posted By: HC8644
Subject: X370 Gaming K4 High DPC Latency in Win10
Date Posted: 21 Mar 2017 at 8:44pm
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" rel="nofollow - Hi Recently built a new Ryzen system using the X370 Gaming K4 board and R1700 Installed a fresh Win10 and the stuttering / cracking sound when playing music is really annoying me I checked using Latency Mon and here's the report: _________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ 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. 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 0:00:21 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: BRIAN-PC OS version: Windows 10 , 10.0, build: 14393 (x64) Hardware: ASRock, X370 Gaming K4 CPU: AuthenticAMD AMD Ryzen 7 1700 Eight-Core Processor Logical processors: 16 Processor groups: 1 RAM: 16336 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 3394 MHz Measured CPU speed: 1 MHz (approx.) 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. WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature. _________________________________________________________________________________________________________ MEASURED INTERRUPT TO USER PROCESS LATENCIES _________________________________________________________________________________________________________ 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): 11279.366512 Average measured interrupt to process latency (µs): 38.871049 Highest measured interrupt to DPC latency (µs): 11273.779209 Average measured interrupt to DPC latency (µs): 31.304214 _________________________________________________________________________________________________________ REPORTED ISRs _________________________________________________________________________________________________________ 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): 8.835592 Driver with highest ISR routine execution time: Wdf01000.sys - ?¸å?模å?é©…å?程å??¶æ??·è??Žæ®µ, Microsoft Corporation Highest reported total ISR routine time (%): 0.000458 Driver with highest ISR total time: Wdf01000.sys - ?¸å?模å?é©…å?程å??¶æ??·è??Žæ®µ, Microsoft Corporation Total time spent in ISRs (%) 0.000458 ISR count (execution time <250 µs): 2191 ISR count (execution time 250-500 µs): 0 ISR count (execution time 500-999 µs): 0 ISR count (execution time 1000-1999 µs): 0 ISR count (execution time 2000-3999 µs): 0 ISR count (execution time >=4000 µs): 0 _________________________________________________________________________________________________________ REPORTED DPCs _________________________________________________________________________________________________________ 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): 11286.797879 Driver with highest DPC routine execution time: storahci.sys - MS AHCI Storport Miniport Driver, Microsoft Corporation Highest reported total DPC routine time (%): 0.251553 Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp. Total time spent in DPCs (%) 0.428459 DPC count (execution time <250 µs): 75786 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 4 DPC count (execution time 1000-1999 µs): 0 DPC count (execution time 2000-3999 µs): 2 DPC count (execution time >=4000 µs): 0 _________________________________________________________________________________________________________ REPORTED HARD PAGEFAULTS _________________________________________________________________________________________________________ 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: backgroundtaskhost.exe Total number of hard pagefaults 1223 Hard pagefault count of hardest hit process: 298 Highest hard pagefault resolution time (µs): 1012059.156747 Total time spent in ha
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Replies:
Posted By: pyre
Date Posted: 22 Apr 2017 at 3:38am
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" rel="nofollow - I have the same problem with cracking on X370 K4 board I have that cracking sound when using 8004 driver on both rear and front output (I tried different devices) However, when I switched to version 7848 and enabled front/rear to be 2 different streams, the front panel is without cracking. The rear one is cracking the same way as before. Observation: It seems it does not happen in games, but it happened in browser, teamspeak, media player classic. Any help would be appreciated. Does this relate to RAM? I have G SKILL 3600 MHz running at 2933 Mhz and Ryzen R7 1700. It behaves the same also on 2133 Mhz. |
Posted By: clubfoot
Date Posted: 22 Apr 2017 at 4:03am
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That was my first thought too,...ram. However, without adjusting your system as per the recommendations from LM above and performing a memtest (TeachPowerUp has a nice windows version) it would be difficult to pin point, unless more users are experiencing the same issue. Click on the process tab and sort to look for clues. ------------- https://valid.x86.fr/1tkblf" rel="nofollow"> 
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Posted By: pyre
Date Posted: 22 Apr 2017 at 5:08am
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I have checked memory by aida stress test before and now. I have also run LatencyMon with 0 hard pagefaults. The cracking is still there and is reproducible. Any ideas for tests are welcome. _________________________________________________________________________________________________________ CONCLUSION _________________________________________________________________________________________________________ Your system appears to be suitable for handling real-time audio and other tasks without dropouts. LatencyMon has been analyzing your system for 0:04:09 (h:mm:ss) on all processors. _________________________________________________________________________________________________________ SYSTEM INFORMATION _________________________________________________________________________________________________________ Computer name: DESKTOP-T0CJ3QG OS version: Windows 10 , 10.0, build: 15063 (x64) Hardware: ASRock, X370 Gaming K4 CPU: AuthenticAMD AMD Ryzen 7 1700 Eight-Core Processor Logical processors: 16 Processor groups: 1 RAM: 16336 MB total _________________________________________________________________________________________________________ CPU SPEED _________________________________________________________________________________________________________ Reported CPU speed: 2994 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. _________________________________________________________________________________________________________ MEASURED INTERRUPT TO USER PROCESS LATENCIES _________________________________________________________________________________________________________ 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): 548.184869 Average measured interrupt to process latency (µs): 5.185976 Highest measured interrupt to DPC latency (µs): 542.029330 Average measured interrupt to DPC latency (µs): 2.045506 _________________________________________________________________________________________________________ REPORTED ISRs _________________________________________________________________________________________________________ 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): 363.106212 Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation Highest reported total ISR routine time (%): 0.065870 Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation Total time spent in ISRs (%) 0.069044 ISR count (execution time <250 µs): 111554 ISR count (execution time 250-500 µs): 0 ISR count (execution time 500-999 µs): 6 ISR count (execution time 1000-1999 µs): 0 ISR count (execution time 2000-3999 µs): 0 ISR count (execution time >=4000 µs): 0 _________________________________________________________________________________________________________ REPORTED DPCs _________________________________________________________________________________________________________ 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): 373.587174 Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 378.92 , NVIDIA Corporation Highest reported total DPC routine time (%): 0.043644 Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 378.92 , NVIDIA Corporation Total time spent in DPCs (%) 0.110901 DPC count (execution time <250 µs): 1089120 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 69 DPC count (execution time 1000-1999 µs): 0 DPC count (execution time 2000-3999 µs): 0 DPC count (execution time >=4000 µs): 0 _________________________________________________________________________________________________________ REPORTED HARD PAGEFAULTS _________________________________________________________________________________________________________ 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. Process with highest pagefault count: none Total number of hard pagefaults 0 Hard pagefault count of hardest hit process: 0 Highest hard pagefault resolution time (µs): 0.0 Total time spent in hard pagefaults (%): 0.0 Number of processes hit: &nb |
Posted By: clubfoot
Date Posted: 22 Apr 2017 at 7:25am
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" rel="nofollow - Are you using usb audio? ------------- https://valid.x86.fr/1tkblf" rel="nofollow">
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Posted By: pyre
Date Posted: 22 Apr 2017 at 7:33am
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nope, but i have 2 monitors and each of those have speakers. One via hdmi the other via DP. But I will try also unplugging usb devices. That might help to identify the problem if its usb related.
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Posted By: pyre
Date Posted: 23 Apr 2017 at 6:01am
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using 0 usb (unplugged all) devices did not fix the problem. Also, I tried Ubuntu Linux 17.04 and the sound was ok. I wrote to technical support AsRock...I want to confirm it not a SW problem before I send the board to RMA. We'll see. |
Posted By: Waseh
Date Posted: 23 Apr 2017 at 9:18am
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So i just installed my system and i get the same problem with sound crackling (from my limited testing it seems to only be the front panel) However uninstalling the realtek drivers and just using the default drivers windows installs fixes the problem. Clearly seems like a driver problem. |
Posted By: TooQik
Date Posted: 23 Apr 2017 at 9:22am
If the problem disappeared when you installed Ubuntu then the issue is definitely software related. Waseh beat me to it.  |
pyre wrote:Posted By: pyre
Date Posted: 23 Apr 2017 at 1:02pm
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" rel="nofollow - yes, it seems so. But..why noone else has the same problem? Why it appears only to me and only on latest windows driver. Older windows driver partially work but it says that enhancments must have been turned off. (it works correctly only if front and rear outputs are separated and enhancments off)
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Posted By: pyre
Date Posted: 23 Apr 2017 at 2:13pm
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" rel="nofollow - Sooooooo. After some serious time spent on this, I have installed the driver included in windows 10 64bit (version 10.0.15063.0) and this one works It disables the Realtek panel in the taskbar...but who cares. I would say that the asrock site holds maybe older / win 8.1 driver? Maybe that is why it is not working? I am not sure. I did not test it fully yet, but it seems it is fixed now. I will update this thread if I have any news |
Posted By: TooQik
Date Posted: 23 Apr 2017 at 2:21pm
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Glad to hear it's working for you now. Drivers can be frustrating at times. |