My laptop CPU speed reduces drastically when plugged in?

[Sammy22]

My laptop has a speed of 2.50Ghz but as soon as i plug the charger in (even when there's no power),it drops to 0.50ghz and below making the laptop very slow...When I remove the battery and restart it without plugging it,it goes back to its normal speed.I feel the charging port is damaged but I dont know why and how it affects the CPU speed and the system still charges well

NB: I've tweaked the power settings severaly yet no good result

[Jeet_singh]

@Sammy22,

Welcome to the HP Forums 🙂 I would like to take a moment and thank you for using this forum, it is a great place to find answers. For you to have the best experience on the HP forum, you could also visit our HP Forums Guide for First Time Here? Learn How to Post and More. I see from your post that you are having issues with the laptop performance drops when power plugged in. Don't worry we'll work together to help you find a solution.

To provide you with an accurate solution, I'll need a few more details:

Could you provide me with the exact model of the PC? Use this link to find it:  https://support.hp.com/in-en/document/c03754824  (Ensure you do not share any of your personal information such as serial, phone number, email ID, etc...).

Have you recently made any software or hardware changes on the PC before the issue started?

Have you tried a different outlet? Are you connecting directly to an outlet and not in a power bar?

Did you try to update the Bios  and device drivers?

In the meantime, let's try these steps here: 

Perform a Hard reset on the notebook: 

Let's start off by ensuring the Windows is updated: 

1) In the search box, type and open Windows Updates. 

2) Check for updates. 

3) If the updates are available, click on install and restart the computer.

Next thing, I would suggest here is to update the Bios, Chipset and Graphics card drivers on your PC from our HP support website, using this link.

Also, download and install HP support assistant on your PC. It should automatically download and install the latest updates and drivers for your PC.

Refer this link to know how to use HP support assistant.

Here is a link to  HP Notebook PCs - Testing and Using the AC Power Adapter that will rule that possibility out.

Next  I would try restoring the default power scheme.

• Right click on the Windows button (lower left corner)

• Choose command prompt admin

• Type powercfg -restoredefaultschemes and press enter.

HP Notebook PCs - Managing Power Options (Windows 10)

Alternatively, I would suggest you can go through this link: HP PCs - Increasing System Performance and Maintaining Your Computer (Windows 10) that may also help.

Please let me know if this resolves the issue, or if you require further assistance!

Eagerly waiting for your response!

that said, If the information I've provided was helpful, 

give us some reinforcement by clicking the solution and kudos buttons, 

that'll help us and others see that we've got the answers!

Good Luck.

[Sammy22]

THanks for the reply Jeet. As regards the product name..the name is HP 15-1039wm About the questions u also asked,I did not make any software or hardware changes other than the fact that i installed a series of heavy graphic design softwares like photoshop and illustrator. About the changing of outlet,I used a friends charger as it is almost same as mine and might have forced it in,however,I noticed the charging port(inlet) became disfigured after i used that charger but I didnt think that would have any effect on the CPU speed but rather the charging cos the system still charges efficiently. That was right before the issue started I've never updated the BIOS or device drivers.Will carry out your suggestions in the meantime and give you a feedback..Thanks once again

[Riddle_Decipher]

@Sammy22

I'm the Riddle_Decipher & I'm writing on behalf of my colleague @Jeet_singh, as the tech is out for the day, that said, I have reviewed your concern and the entire conversation, did some research and here's what I recommend:

Please take your time and get back to us with the results,

We will be eagerly awaiting your response and would be glad to help.

Feel free to post your query for any other assistance as well,

It's been a pleasure interacting with you and I hope you have a great day, ahead.

Have a great day!

[Sammy22]

Hi...Having done all that was asked of me by jeet singh above...Nothing changed as regards my system speed's fluctuation...please I need a lasting solution

[KrazyToad]

@Sammy22

It looks like you were interacting with @Jeet_singh, but he is out for the day. I'm KrazyToad & I'm at your service. 

I understand that the issue persists after performing all the suggested troubleshooting steps

I have sent you a private message with the next course of action

Please check your private message icon on the upper right corner of your HP Forums profile.

Next to your profile Name, you should see a little blue envelope

Thank you 😊