Hi guys, I have been having this problem for the past 2 weeks or so. I have tried numerous re-formats, going back to Windows 8.1, disabling/enabling lots of devices, all to no avail. Basically I can't even use the computer anymore. Audio is a nightmare. I am suspecting a faulty motherboard or HDD (I don't have SSD). Check my Latency Monitor reports here:
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CONCLUSION
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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 0:42:34 (h:mm:ss) on all processors.
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SYSTEM INFORMATION
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Computer name: DESKTOP-QJ8RC7A
OS version: Windows 10 , 10.0, build: 10586 (x64)
Hardware: Z270-Gaming K3, Gigabyte Technology Co., Ltd.
CPU: GenuineIntel Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Logical processors: 8
Processor groups: 1
RAM: 16338 MB total
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CPU SPEED
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Reported CPU speed: 360 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): 30934.444714
Average measured interrupt to process latency (µs): 13.921299
Highest measured interrupt to DPC latency (µs): 30931.315827
Average measured interrupt to DPC latency (µs): 11.731923
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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): 306.9150
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.091659
Driver with highest ISR total time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Total time spent in ISRs (%) 0.142328
ISR count (execution time <250 µs): 5378763
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 3
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 µs): 0
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): 30950.207222
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
Highest reported total DPC routine time (%): 0.183313
Driver with highest DPC total execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
Total time spent in DPCs (%) 0.498760
DPC count (execution time <250 µs): 14471514
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 19158
DPC count (execution time 1000-1999 µs): 16669
DPC count (execution time 2000-3999 µs): 3051
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: leagueclient.exe
Total number of hard pagefaults 59867
Hard pagefault count of hardest hit process: 15536
Highest hard pagefault resolution time (µs): 2812413.218056
Total time spent in hard pagefaults (%): 1.387964
Number of processes hit: 50
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 133.546239
CPU 0 ISR highest execution time (µs): 306.9150
CPU 0 ISR total execution time (s): 27.644239
CPU 0 ISR count: 4951347
CPU 0 DPC highest execution time (µs): 30950.207222
CPU 0 DPC total execution time (s): 61.800250
CPU 0 DPC count: 12177774
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CPU 1 Interrupt cycle time (s): 59.182380
CPU 1 ISR highest execution time (µs): 277.917222
CPU 1 ISR total execution time (s): 1.403445
CPU 1 ISR count: 412526
CPU 1 DPC highest execution time (µs): 8620.241667
CPU 1 DPC total execution time (s): 4.361643
CPU 1 DPC count: 231822
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CPU 2 Interrupt cycle time (s): 52.929653
CPU 2 ISR highest execution time (µs): 104.336111
CPU 2 ISR total execution time (s): 0.036145
CPU 2 ISR count: 14117
CPU 2 DPC highest execution time (µs): 19045.958333
CPU 2 DPC total execution time (s): 13.166805
CPU 2 DPC count: 856459
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CPU 3 Interrupt cycle time (s): 55.382707
CPU 3 ISR highest execution time (µs): 57.398889
CPU 3 ISR total execution time (s): 0.002135
CPU 3 ISR count: 776
CPU 3 DPC highest execution time (µs): 6979.962778
CPU 3 DPC total execution time (s): 2.998376
CPU 3 DPC count: 156953
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CPU 4 Interrupt cycle time (s): 41.355701
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): 7044.327222
CPU 4 DPC total execution time (s): 5.082520
CPU 4 DPC count: 356829
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CPU 5 Interrupt cycle time (s): 53.042344
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): 8404.998889
CPU 5 DPC total execution time (s): 4.850593
CPU 5 DPC count: 223919
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CPU 6 Interrupt cycle time (s): 42.084654
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): 5955.110556
CPU 6 DPC total execution time (s): 5.356787
CPU 6 DPC count: 342412
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CPU 7 Interrupt cycle time (s): 53.249740
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): 5750.742778
CPU 7 DPC total execution time (s): 4.308953
CPU 7 DPC count: 165305
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CONCLUSION
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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 0:42:34 (h:mm:ss) on all processors.
_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-QJ8RC7A
OS version: Windows 10 , 10.0, build: 10586 (x64)
Hardware: Z270-Gaming K3, Gigabyte Technology Co., Ltd.
CPU: GenuineIntel Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
Logical processors: 8
Processor groups: 1
RAM: 16338 MB total
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CPU SPEED
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Reported CPU speed: 360 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): 30934.444714
Average measured interrupt to process latency (µs): 13.921299
Highest measured interrupt to DPC latency (µs): 30931.315827
Average measured interrupt to DPC latency (µs): 11.731923
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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): 306.9150
Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation
Highest reported total ISR routine time (%): 0.091659
Driver with highest ISR total time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation
Total time spent in ISRs (%) 0.142328
ISR count (execution time <250 µs): 5378763
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 3
ISR count (execution time 1000-1999 µs): 0
ISR count (execution time 2000-3999 µs): 0
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): 30950.207222
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
Highest reported total DPC routine time (%): 0.183313
Driver with highest DPC total execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation
Total time spent in DPCs (%) 0.498760
DPC count (execution time <250 µs): 14471514
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 19158
DPC count (execution time 1000-1999 µs): 16669
DPC count (execution time 2000-3999 µs): 3051
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: leagueclient.exe
Total number of hard pagefaults 59867
Hard pagefault count of hardest hit process: 15536
Highest hard pagefault resolution time (µs): 2812413.218056
Total time spent in hard pagefaults (%): 1.387964
Number of processes hit: 50
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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 133.546239
CPU 0 ISR highest execution time (µs): 306.9150
CPU 0 ISR total execution time (s): 27.644239
CPU 0 ISR count: 4951347
CPU 0 DPC highest execution time (µs): 30950.207222
CPU 0 DPC total execution time (s): 61.800250
CPU 0 DPC count: 12177774
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CPU 1 Interrupt cycle time (s): 59.182380
CPU 1 ISR highest execution time (µs): 277.917222
CPU 1 ISR total execution time (s): 1.403445
CPU 1 ISR count: 412526
CPU 1 DPC highest execution time (µs): 8620.241667
CPU 1 DPC total execution time (s): 4.361643
CPU 1 DPC count: 231822
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CPU 2 Interrupt cycle time (s): 52.929653
CPU 2 ISR highest execution time (µs): 104.336111
CPU 2 ISR total execution time (s): 0.036145
CPU 2 ISR count: 14117
CPU 2 DPC highest execution time (µs): 19045.958333
CPU 2 DPC total execution time (s): 13.166805
CPU 2 DPC count: 856459
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CPU 3 Interrupt cycle time (s): 55.382707
CPU 3 ISR highest execution time (µs): 57.398889
CPU 3 ISR total execution time (s): 0.002135
CPU 3 ISR count: 776
CPU 3 DPC highest execution time (µs): 6979.962778
CPU 3 DPC total execution time (s): 2.998376
CPU 3 DPC count: 156953
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CPU 4 Interrupt cycle time (s): 41.355701
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): 7044.327222
CPU 4 DPC total execution time (s): 5.082520
CPU 4 DPC count: 356829
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CPU 5 Interrupt cycle time (s): 53.042344
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): 8404.998889
CPU 5 DPC total execution time (s): 4.850593
CPU 5 DPC count: 223919
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CPU 6 Interrupt cycle time (s): 42.084654
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): 5955.110556
CPU 6 DPC total execution time (s): 5.356787
CPU 6 DPC count: 342412
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CPU 7 Interrupt cycle time (s): 53.249740
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): 5750.742778
CPU 7 DPC total execution time (s): 4.308953
CPU 7 DPC count: 165305
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