Asus Z77 V-Pro/Thunderbolt Cracking Sound from Onboard audio

I ran latencymon and this is what it gives me.

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 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 0:34:21 (h:mm:ss) on all processors.


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SYSTEM INFORMATION
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Computer name: GRANT-PC
OS version: Windows 7 , 6.1, build: 7600 (x64)
Hardware: ASUSTeK COMPUTER INC., P8Z77-V PRO/THUNDERBOLT
CPU: GenuineIntel Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz
Logical processors: 8
Processor groups: 1
RAM: 16066 MB total


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CPU SPEED
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Reported CPU speed: 3510.0 MHz
Measured CPU speed: 2285.0 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.


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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): 6391.031728
Average measured interrupt to process latency (µs): 2.373989

Highest measured interrupt to DPC latency (µs): 392.347331
Average measured interrupt to DPC latency (µs): 0.762023


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MEASURED SMI, IPI AND CPU STALLS
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The SMI, IPI and CPU stalls value represents the highest measured interval that a CPU did not respond while having its maskable interrupts disabled.

Highest measured SMI or CPU stall (µs) 17.794191


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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): 118.493447
Driver with highest ISR routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

Highest reported total ISR routine time (%): 0.052621
Driver with highest ISR total time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

Total time spent in ISRs (%) 0.060558

ISR count (execution time <250 µs): 3673426
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


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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): 273.146154
Driver with highest DPC routine execution time: iusb3xhc.sys - Intel(R) USB 3.0 eXtensible Host Controller Driver, Intel Corporation

Highest reported total DPC routine time (%): 0.029539
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 (%) 0.112208

DPC count (execution time <250 µs): 12608597
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 1
DPC count (execution time 1000-1999 µs): 0
DPC count (execution time 2000-3999 µs): 0
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: firefox.exe

Total number of hard pagefaults 12132
Hard pagefault count of hardest hit process: 3431
Highest hard pagefault resolution time (µs): 500227.941880
Total time spent in hard pagefaults (%): 0.724344
Number of processes hit: 18


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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 77.371584
CPU 0 ISR highest execution time (µs): 118.493447
CPU 0 ISR total execution time (s): 9.987503
CPU 0 ISR count: 3673426
CPU 0 DPC highest execution time (µs): 273.146154
CPU 0 DPC total execution time (s): 17.599580
CPU 0 DPC count: 12352019
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CPU 1 Interrupt cycle time (s): 42.265151
CPU 1 ISR highest execution time (µs): 0.0
CPU 1 ISR total execution time (s): 0.0
CPU 1 ISR count: 0
CPU 1 DPC highest execution time (µs): 127.516524
CPU 1 DPC total execution time (s): 0.026250
CPU 1 DPC count: 4927
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CPU 2 Interrupt cycle time (s): 17.203641
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): 108.775783
CPU 2 DPC total execution time (s): 0.268163
CPU 2 DPC count: 87269
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CPU 3 Interrupt cycle time (s): 38.930035
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): 159.973504
CPU 3 DPC total execution time (s): 0.031688
CPU 3 DPC count: 3496
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CPU 4 Interrupt cycle time (s): 33.864029
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): 144.482051
CPU 4 DPC total execution time (s): 0.028858
CPU 4 DPC count: 3957
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CPU 5 Interrupt cycle time (s): 32.822441
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): 140.360399
CPU 5 DPC total execution time (s): 0.198482
CPU 5 DPC count: 45582
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CPU 6 Interrupt cycle time (s): 26.762620
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): 200.119088
CPU 6 DPC total execution time (s): 0.285536
CPU 6 DPC count: 78792
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CPU 7 Interrupt cycle time (s): 33.304391
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): 135.340171
CPU 7 DPC total execution time (s): 0.067278
CPU 7 DPC count: 32556
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Before Intel Rapid Storage Technology would be recorded by latencymon as the most problematic, so i decided not to install it this time around so now it seems that ataport is the problematic one.

http://s23.postimg.org/44u89ygqj/Untitled.png