I recently upgraded my 5 year old PC and put together a new build utilizing the new 1151 chipset and following components:
G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) Intel Z170 Platform Desktop Memory
Phanteks Enthoo Evolv Gray Aluminum / Steel mATX/ MicroATX Tower
GIGABYTE G1 Gaming GA-Z170MX-Gaming 5 LGA 1151 Intel Z170 HDMI SATA 6Gb/s USB 3.1 USB 3.0 Micro ATX Intel Motherboard
EVGA Geforce GTX 760 SC ACX (from previous build)
Windows 10 OS 64x
Ever since upgrade, I have noticed the sound to intermittently hum/distort/crack while playing music, streaming videos, and especially gaming. I don't mind the occassional pop, but with gaming, this "DPC Lag" is significantly affecting performance dropping my FPS at times from 120FPS to 15FPS in games such as Dota 2, as well as Witcher 3 ( I have not had enough time to test other games). I've attempted various solutions, including all the useless support Windows 10 moderators have to offer (Run SFC /scannow does not work, nor does disabling audio devices).
In addition, I have disabled all CPU power options and uninstalled Geforce drivers + network drivers only to get a slight decrease in lag as noted in the photos below which were taken after all solutions were attempted. I reinstalled Killer drivers as they were out of control with spikes, and that seemed to relieve some lag from those drivers. However, the directx and geforce drivers are way high and I can't figure out what I need to do. I've also been using the resolution timer application which also assists w/ reducing latency, but not to the point where all issues have been resolved (pictures below are with resolution timer on).
I have contacted Gigabyte and they are legitimately useless. The worst support I have received in recent age. Did nothing to help me, only told me that they were unable to recreate the issue so they can't assist me.
I am at wits end with this issue. I have spent over 30hours attempting to figure out how to solve this problem, and without success. I even reinstalled windows 10, and some issues.
I will provide any additional information as requested and I appreciate any assistance .
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 1:15:36 (h:mm:ss) on all processors.
Computer name: TANK
OS version: Windows 8 , 6.2, build: 9200 (x64)
Hardware: Z170MX-Gaming 5, Gigabyte Technology Co., Ltd.
CPU: GenuineIntel Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
Logical processors: 4
Processor groups: 1
RAM: 16333 MB total
Reported CPU speed: 3504 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 (Ás): 2071.380206
Average measured interrupt to process latency (Ás): 2.044577
Highest measured interrupt to DPC latency (Ás): 2068.457830
Average measured interrupt to DPC latency (Ás): 0.712883
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 (Ás): 5756.860160
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.231831
Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Total time spent in ISRs (%) 0.255609
ISR count (execution time <250 Ás): 4369532
ISR count (execution time 250-500 Ás): 0
ISR count (execution time 500-999 Ás): 11
ISR count (execution time 1000-1999 Ás): 15
ISR count (execution time 2000-3999 Ás): 11
ISR count (execution time >=4000 Ás): 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 (Ás): 5690.78710
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
Highest reported total DPC routine time (%): 0.155539
Driver with highest DPC total execution time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation
Total time spent in DPCs (%) 0.438679
DPC count (execution time <250 Ás): 29577852
DPC count (execution time 250-500 Ás): 0
DPC count (execution time 500-999 Ás): 281
DPC count (execution time 1000-1999 Ás): 8
DPC count (execution time 2000-3999 Ás): 3
DPC count (execution time >=4000 Ás): 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: dota2.exe
Total number of hard pagefaults 13599
Hard pagefault count of hardest hit process: 5107
Highest hard pagefault resolution time (Ás): 456240.192352
Total time spent in hard pagefaults (%): 0.047789
Number of processes hit: 49
PER CPU DATA
CPU 0 Interrupt cycle time (s): 193.275242
CPU 0 ISR highest execution time (Ás): 5756.860160
CPU 0 ISR total execution time (s): 45.869856
CPU 0 ISR count: 4170093
CPU 0 DPC highest execution time (Ás): 5690.78710
CPU 0 DPC total execution time (s): 72.861553
CPU 0 DPC count: 28315539
CPU 1 Interrupt cycle time (s): 50.146651
CPU 1 ISR highest execution time (Ás): 5578.797945
CPU 1 ISR total execution time (s): 0.506935
CPU 1 ISR count: 198192
CPU 1 DPC highest execution time (Ás): 206.097603
CPU 1 DPC total execution time (s): 3.854415
CPU 1 DPC count: 346960
CPU 2 Interrupt cycle time (s): 47.637826
CPU 2 ISR highest execution time (Ás): 29.580479
CPU 2 ISR total execution time (s): 0.003058
CPU 2 ISR count: 1252
CPU 2 DPC highest execution time (Ás): 225.424658
CPU 2 DPC total execution time (s): 1.221043
CPU 2 DPC count: 435234
CPU 3 Interrupt cycle time (s): 40.688796
CPU 3 ISR highest execution time (Ás): 7.054224
CPU 3 ISR total execution time (s): 0.000118
CPU 3 ISR count: 36
CPU 3 DPC highest execution time (Ás): 290.621005
CPU 3 DPC total execution time (s): 1.660696
CPU 3 DPC count: 480412