lately my laptop clockspeed is stuck at 0.40 ghz that turned me lagging so bad , i dont know why but it only happen sometimes , like when im booting up my pc it 3ghz-2ghz until about 10 minutes and it turned to be 0.40 ghz again, heres all the picture of my pc specification, All i have tried is , setting the power option , my bios is up to date
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How do you know it's really at 400Mhz, is the reporting tool accurate? How's the heat sink & fans & airflow & temperature? Is the cpu overheating & slowing down? Battery good, does it happen only when plugged in or unplugged? – Xen2050 Apr 13 '19 at 08:30
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@Xen2050 im checking from task manager and cpu-z the fan speed is normal ,temp between 49-50 celcius but not higher than that , i got this problem when plugged , never unplugged because im never leave house right now – Cahya Darma Wijaya Apr 13 '19 at 08:39
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1Possible duplicate of [Processor speed limited at 0.4 GHz](https://superuser.com/questions/1420298/processor-speed-limited-at-0-4-ghz) – phuclv Apr 13 '19 at 09:06
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@phuclv have seen it, none of it have same on mine – Cahya Darma Wijaya Apr 13 '19 at 09:34