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‎01-03-2025 11:05 AM

HP Recommended

what does it mean when my hp all-in-one m/n 27-a030 makes 3 long beeps followed by 4 short beeps several times and the. it says that pc will shutdown due to unsupported adapter installed

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1 REPLY 1

‎01-03-2025 12:13 PM

HP Recommended

Did you install a different power supply other than the one that came with your PC?

 

The troubleshooting link indicates it is a power issue of some kind:

 

HP Desktop PCs - Computer beeps or a light blinks during startup | HP® Support

 

Below is the link to the parts list for your PC:

 

HP PartSurfer

 

There are 7 different 120W power adapter part numbers listed.

 

You may be able to narrow down which one HP supplied with your PC if you enter the PC's serial number in the search window at the link below:

 

HP PartSurfer

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