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My laptop (HP Pavilion Gaming Laptop 15-ec1xxx) has been slowing down to 0.39 GHz when plugged in.

I've had it for about 3-4 years now. It's a refurbished model that was used a display laptop for a (now closed) tech shop. It's worked great for that long while! XCOM 2, Mechabellum, Arkham City, etc, etc, all have run completely fine on it without issue. However, about a few months ago, as the title suggests, it slows down to a painfully slow 0.39 GHz whenever it is plugged in.

I did my own research and most sources pointed towards a bent charging pin being the problem. So, I went over to my local PC repair shop and had my charging port replaced, alongside buying a new charger just to be sure. But as of typing this, I still have this issued.

I dug a bit more and found out that there's something called SpeedStep that cause this, so I go digging about in BIOS. Right before I realize that SpeedStep is for Intel CPUs. I have an AMD Ryzen 5 4000 series for my PC, so it can't be that.

I'm a bit stumped with how to fix this issue. Definitely need some help.

Guy 01
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2 Answers2

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There are a couple of things that could be causing this.

First try updating all your drivers and windows.

Second try checking if you have set a power plan that limits cpu usage. Go to Control Panel>Hardware and Sound>Power Options>Edit Plan Settings and then navigate to Change advanced power settings. Find processor power management and make sure the minimum and maximum when plugged in is 100%.

Next you could try checking the thermals and seeing if there is any abnormal temperatures.

You could also try to solution listed in this post:

Stuck at 0.39 Ghz: Lenovo Ideapad 5 with Intel i5-1135G7 processor

You could also try some of the solutions listed here:

Infamous 0.39 GHz in Windows 10 issue has no fixes?

Andreas
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How is the battery? Generate a battery report.

"But why would I need a good battery if it's plugged into the AC mains?" you ask. Because the power supply alone cannot alwys handle the full load at peak usage, and the battery buffers that supply. Further, if one cell is shorted, the battery can be be reducing power.

If the battery is down to much less than half it's designed storage, replace that (a DIY project, if you wish).

DrMoishe Pippik
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