[MiD_E34]

советую поставить прогу latencymon показывает где проблем. Вот мой лог:
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. Also one or more ISR routines that belong to a driver running in your system appear to be executing for too long. Also your system appears to be having trouble which may be attributed to SMIs, IPIs, CPU bugs or unexplainable stalls. 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 0:01:43 (h:mm:ss) on all processors.


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SYSTEM INFORMATION
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Computer name: MID-CARPC
OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x86)
Hardware: SAISHIAT, PEGATRON CORPORATION,
CPU: GenuineIntel Intel(R) Atom(TM) CPU D2700 @ 2.13GHz
Logical processors: 4
Processor groups: 1
RAM: 3057 MB total


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CPU SPEED
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Reported CPU speed: 2128,0 MHz
Measured CPU speed: 2650,0 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): 13755,152889
Average measured interrupt to process latency (µs): 6,145583

Highest measured interrupt to DPC latency (µs): 4588,579653
Average measured interrupt to DPC latency (µs): 1,407981


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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) 1213,548436


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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): 22949,804511
Driver with highest ISR routine execution time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

Highest reported total ISR routine time (%): 0,09720
Driver with highest ISR total time: ataport.SYS - ATAPI Driver Extension, Microsoft Corporation

Total time spent in ISRs (%) 0,108321

ISR count (execution time <250 µs): 19529
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 0
ISR count (execution time 1000-1999 µs): 2
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): 11440,766917
Driver with highest DPC routine execution time: ACPI.sys - ACPI äðàéâåð äëÿ NT, Microsoft Corporation

Highest reported total DPC routine time (%): 0,224030
Driver with highest DPC total execution time: rspLLL32.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.

Total time spent in DPCs (%) 0,431573

DPC count (execution time <250 µs): 570590
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 0
DPC count (execution time 1000-1999 µs): 2
DPC count (execution time 2000-3999 µs): 2
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.


Process with highest pagefault count: latmon.exe

Total number of hard pagefaults 3
Hard pagefault count of hardest hit process: 2
Highest hard pagefault resolution time (µs): 786,704417
Total time spent in hard pagefaults (%): 0,000449
Number of processes hit: 1


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PER CPU DATA
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CPU 0 Interrupt cycle time (s): 3,431011
CPU 0 ISR highest execution time (µs): 102,906015
CPU 0 ISR total execution time (s): 0,098740
CPU 0 ISR count: 4891
CPU 0 DPC highest execution time (µs): 6882,383459
CPU 0 DPC total execution time (s): 1,307231
CPU 0 DPC count: 533861
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CPU 1 Interrupt cycle time (s): 1,805448
CPU 1 ISR highest execution time (µs): 4054,804511
CPU 1 ISR total execution time (s): 0,108343
CPU 1 ISR count: 4978
CPU 1 DPC highest execution time (µs): 6870,454887
CPU 1 DPC total execution time (s): 0,132968
CPU 1 DPC count: 9816
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CPU 2 Interrupt cycle time (s): 1,173277
CPU 2 ISR highest execution time (µs): 22949,804511
CPU 2 ISR total execution time (s): 0,145569
CPU 2 ISR count: 4953
CPU 2 DPC highest execution time (µs): 4575,981203
CPU 2 DPC total execution time (s): 0,168910
CPU 2 DPC count: 11695
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CPU 3 Interrupt cycle time (s): 1,113174
CPU 3 ISR highest execution time (µs): 210,424812
CPU 3 ISR total execution time (s): 0,096031
CPU 3 ISR count: 4713
CPU 3 DPC highest execution time (µs): 11440,766917
CPU 3 DPC total execution time (s): 0,178535
CPU 3 DPC count: 15247
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