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Oxmo81 · ‎01-18-2016

I have crackling sound like on old LP record when playing games. And only when playing games. And this give me latency issues.
I have tryed disable wi-fi and bluethoot in bios, disable one by one Devises/driver/program in Device Manager, older drivers and the newest deivers for nVidia, Lan, wi-fi, and sound.
On the sound driver side I have tryed windows only driver, Realtek only, and Asus Sonic Studio, and all this with old and new dirvers. And now I plead for your help.

LatencyMon Raporting:

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. Also one or more ISR 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 0:04:32 (h:mm:ss) on all processors.

SYSTEM INFORMATION

Computer name: DESKTOP-RU41EDN
OS version: Windows 10 Pro, 1511, build: 10586.63 (x64)
Hardware: ASUSTeK COMPUTER INC., MAXIMUS VIII HERO ALPHA
CPU: GenuineIntel Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Logical processors: 8
Processor groups: 1
RAM: 32622 MB total

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CPU SPEED
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Reported CPU speed: 4008 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.

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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): 6024,932110
Average measured interrupt to process latency (µs): 2,342571

Highest measured interrupt to DPC latency (µs): 6016,756475
Average measured interrupt to DPC latency (µs): 0,927158

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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): 9035,499002
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%): 0,078016
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0,091159

ISR count (execution time <250 µs): 323170
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 1
ISR count (execution time 2000-3999 µs): 47
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): 7407,095309
Driver with highest DPC routine execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 361.43 , NVIDIA Corporation

Highest reported total DPC routine time (%): 0,027550
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver, Version 361.43 , NVIDIA Corporation

Total time spent in DPCs (%) 0,083396

DPC count (execution time <250 µs): 1209317
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 38
DPC count (execution time 1000-1999 µs): 13
DPC count (execution time 2000-3999 µs): 22
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: skypehost.exe

Total number of hard pagefaults 7937
Hard pagefault count of hardest hit process: 1345
Highest hard pagefault resolution time (µs): 1380487,685379
Total time spent in hard pagefaults (%): 2,597388
Number of processes hit: 38

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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 6,721678
CPU 0 ISR highest execution time (µs): 9035,499002
CPU 0 ISR total execution time (s): 1,985882
CPU 0 ISR count: 323229
CPU 0 DPC highest execution time (µs): 7407,095309
CPU 0 DPC total execution time (s): 1,556980
CPU 0 DPC count: 1095706
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CPU 1 Interrupt cycle time (s): 3,377121
CPU 1 ISR highest execution time (µs): 1,889471
CPU 1 ISR total execution time (s): 0,000016
CPU 1 ISR count: 15
CPU 1 DPC highest execution time (µs): 44,026198
CPU 1 DPC total execution time (s): 0,011336
CPU 1 DPC count: 5629
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CPU 2 Interrupt cycle time (s): 1,748413
CPU 2 ISR highest execution time (µs): 0,0
CPU 2 ISR total execution time (s): 0,0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (µs): 4728,215319
CPU 2 DPC total execution time (s): 0,055439
CPU 2 DPC count: 29917
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CPU 3 Interrupt cycle time (s): 2,147715
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): 29,545659
CPU 3 DPC total execution time (s): 0,013525
CPU 3 DPC count: 7154
_________
CPU 4 Interrupt cycle time (s): 2,545116
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): 47,861776
CPU 4 DPC total execution time (s): 0,058412
CPU 4 DPC count: 26814
______
CPU 5 Interrupt cycle time (s): 2,851927
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): 61,156687
CPU 5 DPC total execution time (s): 0,016453
CPU 5 DPC count: 7121
______
CPU 6 Interrupt cycle time (s): 2,028329
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): 48,127994
CPU 6 DPC total execution time (s): 0,072285
CPU 6 DPC count: 27193
_______
CPU 7 Interrupt cycle time (s): 2,362127
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): 51,446357
CPU 7 DPC total execution time (s): 0,032361
CPU 7 DPC count: 9865

Oxmo81 · ‎01-18-2016

js2015 · ‎01-19-2016

Oxmo81 wrote:

Hi, have you installed the "DRAMCACHE" SW ? try to disable if any help ~

Oxmo81 · ‎01-20-2016

Asus support clames it is my powersuply because it is not Intel Haswell C6/C7 compliant. I have this PSU http://www.fractal-design.com/home/product/power-supplies/newton/newton-r3-1000w

Can this be true?

ondersma80 · ‎01-20-2016

It could be true that it is caused by the PSU but I don't think it is because of C6/C7 in this case. I couldn't find Haswell (and Skylake) compatibility data on Fractal's website but I believe this unit uses DC-DC conversion on the minor rails so should be fine. Aside from the C6/C7 reason it could still be the PSU causing it though. I suggest getting together with other users that experience audio issues and gather common components to find a common denominator. One such thread is here: https://rog.asus.com/forum/showthread.php?82320-This-audio-issue-has-to-go-Please-see-for-audio-file...

Oxmo81 · ‎01-25-2016

Did get this reply after a few e-mails to Asus support:

Hi

I know that there is some confidential chipset wide issue in the z170 series that i cannot discuss in further detail, i just got the infor today via some channels but the info comes directly from intel. I don't have a release schedule for a fix but if it is indeed a chipset wide issue i think they will rollout updates quite soon. However i cannot promise that the fix will be able to adress the issues you are having.

One more thing, if you happen to have an old add in LAN card you might give that a go and disable all the built in lan adapters in the bios.

I do not have a add in LAN card, so this I can not test. But it got a little better after disable LAN and only use WI-FI.
I guess we have to wait for a fix from Intel or maybe Asus can do some thing with a new Bios. I'd did hope that the Bios 1402 did help, but unfortunately it did not fix my motherboard audio problems.

Oxmo81 · ‎03-14-2016

Solved. It was the graphick card.

Hero Alpha crackling sound in games