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‎02-19-2021 09:01 AM

HP Recommended
Product: All in one touchscreen
Operating System: Microsoft Windows 10 (64-bit)

When I turn on my computer, after using as a 2nd monitor, I get 3 long and 4 short beeps.  This only happens sometimes.  I've tried switching out the power cord and nothing works.  Also I get an error regarding some type of unknown adapter and then the computer shuts down.

1 REPLY 1

‎02-19-2021 10:01 AM

HP Recommended

https://www.youtube.com/watch?v=5MNl-_uNOWM&t=13s

 

This may help.

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