Question HW monitor wrong readings?

[thebarte12]

Hi. I benchmarked my pc using valley benchmark. I have windows power play on max performance. I saw that my core clocks sometimes drops to 800mhz in HWMonitor. In HWinfo64 everything looks good. Is this just HWmonitor bug? When I use prime95 to stress my PC i didn't see any drops to 800mhz in HWMonitor and HWinfo. I used OCCT to test my my pc and after 90 mins no errors.

My spec:
i5 8500
Gigabyte z370 HD3 OP
Kingston Hyperx Predator 3200mhz cl16
MSI RTX 2060 Gaming Z
Thermaltake Smart SE 630 (5 years old)

 

[WildCard999]

800mhz is the idle speed on the 8500, note that those readings are in the Min column.

 

[mdd1963]

Once all updates are done, with only a browser open, in Balanced mode power plan, the CPU will typically be closer to 800-1000, 1200 MHz until an actual task that applies a load occurs. As you open/close assorted WIndows /tabs, you will see brief bursts to 3.x GHz, clock speed changing several times per second, etc,...all normal.

 

[thebarte12]

It's dropping when I am in high performance power plan. Is it still normal?

 

[thebarte12]

Okey so it is caused propably by intel speedstep and c-state like in this thread.
https://forums.tomshardware.com/thr...-to-800mhz-for-a-second-then-goes-up.3081644/