Hp Computer At Very Slow Constant Frequency

I have a HP 15-f039wm with a celeron n2840.

It has been running slow, so I reinstalled windows 10. This did not help. I ran a full 4 hour diagnostics that is built in to the computer, it came back clean. I looked at the processor and it is always at 23 percent no matter what and at 0.5 GHrtz steadily. I checked the power options, the max allows for 100 percent cpu usage.

 

You should read this article:

Microsoft Confirms Some Surface Pro 6, Surface Book 2s Are Running at Pentium II Speeds
https://www.extremetech.com/computi...ace-book-2-users-running-at-pentium-ii-speeds

"There are non-Surface users who have reported BD PROCHOT issues as well over the years, so this isn't a Microsoft-specific instruction or capability, though the issue does seem to be hitting Surface in particular right now."​

I've seen it on a Lenovo ThinkPad T480s. The CPU clock speed locked at 400 MHz no matter what processor-intensive software I threw at it. I didn't try the ThrottleStop workaround mentioned in the article. Since the laptop was still under warranty, I opened a support ticket with Lenovo, and they replaced the system board.

 

How did you reinstall 10?

 

Thank you all. I will have a friend who is a professional look at it also with your suggestions. Without seeing it, he is wondering if there was a problem with the power adaptor. He said that some Dell's can be bumped into a basic power mode when the adaptor goes bad and he wondered if there was a similar thing going on with this HP. Also, some websites suggested that it may have an overheating problem so we may crack it open.

Mr. Krinkle, we will consider that article.

Replicator, I installed Windows 10 from a CD.

plodr, my problem with your suggestions is that we don't want to spend money on a lemon and with my knowledge and experience and research including what else has been said here, It's not clear to me that these things will help. I have never seen a contemporary processor frozen at about 500 megahertz because the hard disc was slow or the memory was a little bit under powered. It remains, the hard disk rarely went to 100 percent usage, and while relatively intense processes were going very very slowly, hard disk usage was quite low really. I am very familiar with how slow a hard disk can be compared with contemporary speeds, but I have never seen it freeze the processor at a steady 500 Mghrtz. Also, I don't know that the memory was paging that much though it's usage is usually relatively high.

If you are absolutely certain that changing these two will loosen up the processor, then great, but I'd like to see some agreement on that point from others to help justify the cost and reduce my perceived risk in spending money at this point, but as things are now, it really seems to be that the processor in and of itself is the bottleneck for who knows why. This computer is running way way slower than what I've experienced from a lack of memory or having a hard disk as opposed to an ssd.

 

You friend is correct in as much as some Dell laptops do that ie slow down if they are underpowered. Not sure if HP ones do the same but get him to check the power supply first with a voltmeter

 

My friend figured it out. He looked at the adapter port and determined that it was damaged. Turns out that if it is unplugged and runs on battery, it shoots back up to to over 2.5 GHrtz.

He thinks the port might be changeable and is not soldered in.

Alternately, I'm wondering if throttlestop recommended in the article from Mr. Krinkle would be a safe and effective solution.

 

If the laptop's processor runs at full speed when on battery and low speed when on AC power, then ThrottleStop is not your solution. That laptop has a hardware issue with the power connector that needs to be fixed.

 

If your friend is any good at dismantling laptops and is any good with a soldering iron then repair or replacement of the power connector on the mobo is of course a viable option.

I would tend to agree with Mister Krinkle that ThrottleStop is not the answer since you would be asking a software program to override the hardware instructions.

In my opinion before dismantling the laptop I would try to replace / borrow a compatible power supply and see if that fixes the issue.

As I said before, the way some Dells work is that if the power supply will firstly recharges the battery and the left over power is used for the laptop itself. So if the power supply is either faulty or under powered in any way then the laptop will underclock in the way which you have experienced.