Audio crackling after +- 2 hours of using computer

tomvalla

New member
Joined
Apr 21, 2018
Posts
4
Hello,
I am totally helpless about audio crackling in my PC about 1 week ago. Ive tried so many options, but nothing helped. I am writing here and hoping you will help me.
Crackling comes about 2-4 hours after turning on the computer (or restarting).


  • System Manufacturer? built myself
  • Laptop or Desktop? desktop
  • Exact model number (if laptop, check label on bottom)
  • OS ? (Windows 10, 8.1, 8, 7, Vista) Windows
  • x86 (32bit) or x64 (64bit)? x64
  • Service pack? newest update
  • What was original installed OS on system? Windows 10 64-bit
  • Is the OS an OEM version (came pre-installed on system) or full retail version (YOU purchased it from retailer)? full retail
  • Age of system? (hardware) from may 2017
  • Age of OS installation? from may 2017 too
  • Have you re-installed the OS? no
  • CPU i7 7700K
  • RAM (brand, EXACT model, what slots are you using?) Kingston 16GB KIT DDR4 2666MHz CL15 HyperX Fury Black Series using 2 slots
  • Video Card ASUS ROG STRIX GAMING GeForce GTX 1080 Advanced Edition DirectCU III 8GB
  • MotherBoard - (if NOT a laptop) ASUS PRIME Z270-A
  • Power Supply - brand & wattage (if laptop, skip this one) EVGA SuperNOVA 750 G2 80 Plus Gold
  • Is driver verifier enabled or disabled? disabled
  • What security software are you using? (Firewall, antivirus, antimalware, antispyware, and so forth) ESES Internet security
  • Are you using proxy, vpn, ipfilters or similar software? No
  • Are you using Disk Image tools? (like daemon tools, alcohol 52% or 120%, virtual CloneDrive, roxio software) No
  • Are you currently under/overclocking? Are there overclocking software installed on your system? No, No

Speccy:
http://speccy.piriform.com/results/VPHAW8DEOGxOIyI3HUZmrhF

ZIP: https://1drv.ms/u/s!AvTTAZUiq83VhQdDNwezZOZpPhnS
 
Install a tool called LatencyMon and check your DPC latencies. With this tool you'll also be able to see what driver (if you have dpc latency) is cauing it.
Maybe that would give you a clue on what to do.
 
Yes, I forgot, sorry. I have monitoring about 3 hours and you can see stats + images:

_________________________________________________________________________________________________________
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. 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 2:59:46 (h:mm:ss) on all processors.




_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: HELLER
OS version: Windows 10 , 10.0, build: 16299 (x64)
Hardware: ASUSTeK COMPUTER INC., PRIME Z270-A
CPU: GenuineIntel Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Logical processors: 8
Processor groups: 1
RAM: 16322 MB total




_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 420 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): 36733,313617
Average measured interrupt to process latency (µs): 2,903022


Highest measured interrupt to DPC latency (µs): 36729,900284
Average measured interrupt to DPC latency (µs): 1,40840




_________________________________________________________________________________________________________
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): 367,931190
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation


Highest reported total ISR routine time (%): 0,074406
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation


Total time spent in ISRs (%) 0,130471


ISR count (execution time <250 µs): 5323536
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 2449
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): 36944,165714
Driver with highest DPC routine execution time: NDIS.SYS - Network Driver Interface Specification (NDIS), Microsoft Corporation


Highest reported total DPC routine time (%): 0,190938
Driver with highest DPC total execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation


Total time spent in DPCs (%) 0,336634


DPC count (execution time <250 µs): 46021696
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 256331
DPC count (execution time 1000-1999 µs): 18
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: 0




_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 435,316758
CPU 0 ISR highest execution time (µs): 367,931190
CPU 0 ISR total execution time (s): 97,970934
CPU 0 ISR count: 4461515
CPU 0 DPC highest execution time (µs): 35320,331429
CPU 0 DPC total execution time (s): 266,761368
CPU 0 DPC count: 40754309
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 63,283119
CPU 1 ISR highest execution time (µs): 338,170952
CPU 1 ISR total execution time (s): 12,427025
CPU 1 ISR count: 553120
CPU 1 DPC highest execution time (µs): 871,7950
CPU 1 DPC total execution time (s): 12,248427
CPU 1 DPC count: 1415972
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 48,509402
CPU 2 ISR highest execution time (µs): 221,236429
CPU 2 ISR total execution time (s): 1,939719
CPU 2 ISR count: 274328
CPU 2 DPC highest execution time (µs): 36944,165714
CPU 2 DPC total execution time (s): 4,214933
CPU 2 DPC count: 1716931
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 39,593462
CPU 3 ISR highest execution time (µs): 123,032857
CPU 3 ISR total execution time (s): 0,244839
CPU 3 ISR count: 37022
CPU 3 DPC highest execution time (µs): 141,930476
CPU 3 DPC total execution time (s): 0,957099
CPU 3 DPC count: 333491
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 42,535632
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): 172,728571
CPU 4 DPC total execution time (s): 1,967138
CPU 4 DPC count: 672658
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 44,234854
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): 141,674286
CPU 5 DPC total execution time (s): 1,051212
CPU 5 DPC count: 362358
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 41,099975
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): 143,166190
CPU 6 DPC total execution time (s): 2,247447
CPU 6 DPC count: 725632
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 40,105557
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): 145,485238
CPU 7 DPC total execution time (s): 1,032399
CPU 7 DPC count: 296702
_________________________________________________________________________________________________________


IMAGES:
Imgur: The magic of the Internet
Imgur: The magic of the Internet
Imgur: The magic of the Internet
 
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.

Download and install CPU-Z, monitor the window while performing a benchmark. Monitor the clocks and voltages.
 
Hello again !
maybe i solved the problem.


Main problem was driver ndis.sys in my PC. I had older version then my brothers PC, who has similar PC as me. I put my computer into the factory settings and voila ! It looks ok after 8 hours testing and monitoring.
 

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