Hello. I recently discovered that my cpu (G860) usage jumps to 100% occasionally. Using a task manager system monitor (W7) I could see both cores going to 100%, causing spikes or hiccups, even when lightgaming (GPU usage 5% for instance). I also get spikes when watching youtube 1080p or when a game is loading. I thought it could be HDD related. Cpu temperatures are more than fine with 39 C idle and 65 C load. HDD health is good. I have heard a coil whine for the PSU when under load (Fsp Fortron Hexa 500w 80+). I have done stress tests and benchmarks before and there seems to be nothing wrong with my hardware. So why is my cpu so stressful? Thanks in advance.
Sidenote: after reading Lag Spikes with my i7 4770k thread, I get a feeling that my HDD can cause those spikes. It is a 160 gb hdd after all, though working normal. About 20 gb is free on both partitions (win 7 and other stuff). I remember that PCMark 07 took ages to start the tests (couple on minutes at least). Probably cpu had a high usage during the loading time.
Sidenote: after reading Lag Spikes with my i7 4770k thread, I get a feeling that my HDD can cause those spikes. It is a 160 gb hdd after all, though working normal. About 20 gb is free on both partitions (win 7 and other stuff). I remember that PCMark 07 took ages to start the tests (couple on minutes at least). Probably cpu had a high usage during the loading time.
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