Hier der bericht von LatencyMon
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 ISR routines belonging to a driver running in your system appear to be executing for too long. You might have to disable your battery device to get better results. LatencyMon has been analyzing your system for 0:07:43 (h:mm:ss)
System Information
Computer name: xxxx-PC OS version: Windows 7 , 6.1, build: 7600 CPU: GenuineIntel Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz Logical processors: 4 RAM: 6350020608 total VM: 2147352576, free: 1942548480
CPU SPEED
Reported CPU speed: 2294 MHz Measured CPU speed: 904 MHz
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.
MEASURED KERNEL TIMER LATENCIES
Highest measured kernel timer latency (µs): 4348.8077
MEASURED SMIs AND CPU STALLS
Highest measured SMI routine or CPU stall (µs) 53.5457
REPORTED DPCs
Highest DPC routine execution time (µs): 803.6442 Driver with highest DPC routine execution time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Highest reported total DPC routine time (%): 13.5768 Driver with highest DPC total execution time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Total time spent in DPCs (%) 18.8104
DPC count (execution time <250 µs): 17700955 DPC count (execution time 250-500 µs): 0 DPC count (execution time 500-999 µs): 29 DPC count (execution time 1000-1999 µs): 0 DPC count (execution time 2000-3999 µs): 0 DPC count (execution time >=4000 µs): 0 _____________________________________________________________________ REPORTED ISRs
Highest ISR routine execution time (µs): 328641.5200 Driver with highest ISR routine execution time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Highest reported total ISR routine time (%): 13.3500 Driver with highest ISR total time: ACPI.sys - ACPI-Treiber für NT, Microsoft Corporation
Total time spent in ISRs (%) 4.5487
ISR count (execution time <250 µs): 6072436 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
REPORTED HARD PAGEFAULTS
Process with highest pagefault count: none
Total number of hard pagefaults 5691
Hard pagefault count of hardest hit process: 1808
Highest hard pagefault resolution time (µs): 651431.2380
Total time spent in hard pagefaults (%):
TODO: Number of processes hit: 0
PER CPU DATA
CPU 0 ISR count: 6072437
CPU 0 ISR highest execution time: 328641.5200
CPU 0 ISR total execution time: 84248594.7907
CPU 0 DPC count: 16037865
CPU 0 DPC highest execution time:
--> die übrigen 3 cpus verursachen keinerlei probleme