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PCIe controller x16 - 1901 error (code 19) in device manager

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Microsoft Windows 10 (64-bit)

So i've got my laptop from about four days now and before yesterday i turned it off, the next day i tried running a game and it was too slow and that wa so wierd because i have an RTX2070, so i tried updating my drivers but it was no good because it always showed me an error that there is no nvidia gpu to update. i started digging in the device manager then i found my gpu in the hidden devices with an error saying that it is not connected to the laptop, and also  my PCIe controller x16 had a yellow mark on it wath an error code 19 that means the device may be damaged or something, but i have no idea how it could be damaged i didn't drop my laptop it didn't get very hot everything  was so good. I really don't know what happened, can someone help me please.

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Welcome to the HP support community.


Restart your computer if you haven't done so already. There is always the remote possibility that the Code 19 error you're seeing was caused by some kind of fluke or temporary problem. If so, a simple reboot might fix the Code 19.


Did you install a device or make a change in Device Manager just before you noticed the Code 19? If so, it's very possible that the change you made caused the Code 19 error. Undo the change if possible, restart your PC, and then check again for the Code 19 error.

Depending on the changes you made, some solutions might include:

  • Removing or reconfiguring the newly installed device
  • Reversing the registry changes you made
  • Rolling back the driver to the version prior to your update

Delete the UpperFilters and LowerFilters registry values. A common cause of Code 19 errors is the corruption of two registry values in the DVD/CD-ROM Drive Class registry key.


Reinstall the drivers for the device. Uninstalling and then reinstalling the drivers for the device that's experiencing the Code 19 error is a likely solution to this problem.​


Update the drivers for the device. Installing the latest manufacturer supplied drivers for a device with the Code 19 error could fix the problem. If updating the drivers solves the Code 19 error, it probably means that there was some kind of issue with the drivers that Windows was storing that you reinstalled in the previous step.


I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.


I am an HP Employee

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