ProBook 450 with high CPU usage

[ju1c3]

I agree that its awful of HP but Lenovo is having these same issues too form the research I have done. I have 25 of these working properly now but as always your mileage may vary. 

[ArtemSnezhny]

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@ju1c3wrote:

Right click the device in device manager under sound, video and game controllers and uninstall the conexant ISST audio device. Check the delete driver box. Keep doing that until it has no more drivers. Then point it to that folder where the driver was located. I know that worked. I am guessing that since you ran the full install in the past its causing the issue because it did for me. I needed to clean out the drivers first before pointing it at the folder since I had tried the installer. Another laptop that had a older driver to start worked when just pointing the device at the driver folder.  

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I did it. As you said I uninstalled the Conexant ISST audio device with it's driver from 'Sound, video and game controllers' section. But after reboot it was installed automatically again. So, I turnied off the Wi-Fi and do it again. Next, the Intel High Definition Audio device appeared in the other devices. Right click on this device and the driver installation from my folder was successful. After reboot Windows shows that no audio controls installed. I again opened the device manager and saw 'unknow device' in the device manager. So, I installed the driver from same folder (C:\SWSetup\SP84712) and now audio devices works.

Need more time for investigating did it solve the problem or not.

[oxapentane]

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@ju1c3wrote:

I agree that its awful of HP but Lenovo is having these same issues too form the research I have done. I have 25 of these working properly now but as always your mileage may vary. 

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Everything has some issues, this is not a problem. Problem with HP - after they sold their stuff to you they don't bother to care. We are in already 5 months old, 12 page long support forum thread and there were no even some "We noted the issue and working on it" from HP. And to be honest, I already gave up on trying to get something across to support over the phone. That's why I switched back to dell - they at least trying to pretend to do something.

[ju1c3]

Good luck buddy. I hope that it works for you. Would be nice to see if this works outside our environmnet. 

[Chocholous]

I´m confirming that it's not the HW issue. HP support recommended me to change board, but there's still same issue even in new board. I'm afraid that suppport only tries to discourage customer...
I tried to reinstall Windows. It seemed that issue wasn't here after installation. After joining to Windows domain problem appeared again - but it can be only coincidence because it's almost impossible to prevent automatically install drivers. It's almost clear that problem is in some driver, but where - sound, network, I/O? There must be some common factor for the issue. Sometimes seemed that the issue didn't appeared when the computer was totally disconnected from the network when resuming from sleep. I wouldn't exclude even network / wi-fi driver. Are you using docking station?
I'd like to see drivers versions in "healthy" ProBook (somebody wrote there that some pieces are OK).

[ju1c3]

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@Chocholouswrote:

I´m confirming that it's not the HW issue. HP support recommended me to change board, but there's still same issue even in new board. I'm afraid that suppport only tries to discourage customer...
I tried to reinstall Windows. It seemed that issue wasn't here after installation. After joining to Windows domain problem appeared again - but it can be only coincidence because it's almost impossible to prevent automatically install drivers. It's almost clear that problem is in some driver, but where - sound, network, I/O? There must be some common factor for the issue. Sometimes seemed that the issue didn't appeared when the computer was totally disconnected from the network when resuming from sleep. I wouldn't exclude even network / wi-fi driver. Are you using docking station?
I'd like to see drivers versions in "healthy" ProBook (somebody wrote there that some pieces are OK).

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Mines fine. My driver versions are below

Conexant ISST : 9.0.180.10 (note you have to manually install the driver don't use the HP installer)

Intel Smart Sound Audio Controller: 9.21.0.3229

Intel Smart Sound OED: 9.21.0.3229

We have to remember that the chipset SmartSound is a huge part of this. Updating that driver for the chipset actually has fixed audio driver issues for us with Windows 10 on the G3 laptops. Maybe we should look there too as the ISST in Conexant ISST is the Intel Smart Sound Technology. Thats in Device manager under System.

[ArtemSnezhny]

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@ju1c3wrote:

Good luck buddy. I hope that it works for you. Would be nice to see if this works outside our environmnet. 

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So... The manual installation of the Conexant  driver didn't solve the problem 😞 

High CPU usage still arise after sleep/gibernation.

[ju1c3]

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@ArtemSnezhnywrote:

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@ju1c3wrote:

Good luck buddy. I hope that it works for you. Would be nice to see if this works outside our environmnet. 

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So... The manual installation of the Conexant  driver didn't solve the problem 😞 

High CPU usage still arise after sleep/gibernation.

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Sorry man. :mansad:

[TDkozlyk]

What you need is an app that displays what processes is using up your CPU time - I recommend the FREE version of Advanced System Care utility - I have been using for 1+ years now & it is very good - does alot in FREE mode as well.

It shows your CPU usage, Memory usage & system temps as well

Thx

[fhgut]

Manual installation of Conexant drivers, unfortunately, did not solve the problem for me either.

Here is my temporary HACK that keeps System process below 1 % of CPU usage (tl;dr: it wil constantly rescan for HW changes for you).

1. Create folder `C:\tools`
2. Get `Devcon.exe` (utility from Microsoft to work with Device Manager). Instructions are here: https://superuser.com/a/1099688/61181.
3. Put `Devcon.exe` to `C:\tools`
4. Create file `C:\tools\hp-is-selling-broken-computers.ps1` with this content: https://pastebin.com/VwkDKaxf.
5. Right click on your Desktop -> Create new shortcut. Location: `C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\tools\hp-is-selling-broken-computers.ps1`.
6. Right click on created shortcut -> Shortcut -> Advanced -> Run as administrator ✔.
7. Run the script via shortcut.
8. Watch how your computer is doing stupid work just because HP cannot make sound drivers in the year 2018.

How this works: The script runs an infinite loop that scans for hardware changes. I added some arbitrary sleeps just to avoid high CPU usage by the script itself. You can minimize the console windows and ignore it. It will be automatically resumed when you resume your laptop from sleep mode.