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Is there any reason why HWiNFO only shows the C0 C-State when both enhanced C-States and Package C-States are set to auto in the Bios? When enhanced C-States is set to enabled (from auto) up to C10 HWiNFO only shows the C3 and C7 C-States. Can HWiNFO detect C-States lower than C7?
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This depends on particular CPU model and ability to monitor C-State residency. HWiNFO reports status of all states it can.
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Sorry should have mentioned CPU. I can't find anything official on what C-States the 8700K support but the Asus Maximus X Hero have options to enable up to C10. I'm not sure whether the CPU being used makes those options available in the Bios or whether that is the C-States the Bios supports. Do you have any experience with that CPU?
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C10 residency counter should be present on that CPU and HWiNFO should be reading it.
But if it doesn't show any data (i.e. residency=0), it's not shown by HWiNFO. It will be shown only once it starts to provide a non-zero value.
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03-16-2018, 10:28 AM
(This post was last modified: 03-16-2018, 10:28 AM by Kol12.)
So that would mean the CPU is not entering a C-State lower than C7?
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Yes, if those counters are working properly. If you attach the HWiNFO Debug File I can check the details and if HWiNFO is reading them all.
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HWiNFO reads C8-C10 counters, but they are always 0 in your debug file, which means the CPU has not entered those states (or counters are not working properly).
No software is able to monitor such fast state changes, even logging at such a fast rate is not possible, not to mention showing the results. HWiNFO displays the values sampled per refresh interval.