CPU Speed stuck at 0.78 GHz, How do I increase it to its base speed of 2.30 GHz?

Question

My 1yr old laptop, HP Pavilion 15 has it's CPU, Intel i5-8300H stuck at 0.78 GHz whenever it's plugged and charging, and the moment I remove the charger plug or switch it off, it increases suddenly and keep fluctuating freely, with good utilisation percentage more than 1-2GHz or more as I experience Thermal Throttling.

I tried sneaking into the BIOS to see if I can do anything, but found nothing. I also downloaded Intel Extreme Tuning Utility (XTU) but couldn't control it.

My question is how do I increase the speed to say atleast 2 GHz (fixed, not fluctuating) when it's charging, irrespective of getting thermal throttle, and also maybe even control the fan speed if it does get hot?

Solution

This is a known bug with Windows 10 20H2.

You will either need to rollback your latest update, figure out a way to install KB4580364, or wait for Microsoft to give you a fix using the regular update mechanism.

Here is a page confirming the problem: https://windowsreport.com/windows-10-slow-cpu-frequency/

Here is the Microsoft page that shows ways to get the patch: https://support.microsoft.com/en-us/help/4580364/windows-10-update-kb4580364

PLEASE NOTE that this fix is still BETA (preview) software. You need to ask yourself if you want to install another guess at a fix or roll back.

Comments

[Mokubai]

Left-click the battery icon while charging and see if you can change to "High Performance" or check your power plan and make sure that it is not set to limit CPU while charging.

[Ramhound]

Please provide adequate information about your Power Plan settings

[GeassDragon]

@Ramhound I tried all the available Power Plans and also some customized, but they didn't worked or had any effect whatsoever. The CPU frequency is locked with respect to the charging status. I am unable to find a way to toggle this setting anywhere.

[Señor CMasMas]

I too had a similar problem on my HP.. my power supply was no longer providing the voltage my laptop needed so it would not throttle up. I bought a new power supply. I doubt this is your problem but something to consider.

[LPChip]

Minimum processor state does not have to be 100%. Default value is 0%. Only the max should be 100%.

[Leopard20]

Yes, but they said they want the CPU clock to be at max value.

[Ramhound]

@LPChip - While I disagree about the helpfulness of the software in question. It's clear based on the numerous questions about similar/exact behavior while running 20H2 this is a more widespread problem than a single device that isn't configured properly. I suspect there is a cause for the behavior, it just has to be identified, might have to resort to Windows reddit.

[GeassDragon]

@Leopard20 thanks for the input but I have already checked this and it is exactly at those same settings which you replied here, or maybe I changed them this way before.

[LPChip]

@Ramhound I agree with the rest, just not that one should uninstall HP Support Assistant because it is OEM bloatware.

[GeassDragon]

Thanks for the reply, since I don't have any spare system PC, I'll wait for the official fix till then. I still haven't updated to the 2004 update yet, cause I read it's risky too.

[Ramhound]

@GeassDragon - It’s not dangerous. More users are on 2004 than any other version of Windows 10