New computer won't power up

[annieb_in_ga]

I took delivery of an HP OmniStudioX All-in-One PC on July 2. Started trying to set it up today. No instructions on how the 3 piece screen fits together so hope I did it correctly.  However the computer will not turn on.  I have checked all power connections repeatedly and see no problem there. When I try to get help from support the support screen of course doesn't recognize my new computer since it never turned on and connected to the internet. When I then supply the only serial number I can find (from my order info) I get a message that it is not a valid serial #. There is no serial number shown anywhere on the outside of the PC.  HOW CAN I GET HELP!  Then decided to just return it, but the lint that was shown to return or exchange the PC is broken.  

[Hawks_Eye]

Hi @annieb_in_ga 

Welcome to the HP Support Community! We're here to help you get back up and running.

That sounds incredibly frustrating—especially when you're excited to set up a brand-new PC and it just won’t cooperate. Let’s try to get you some traction so you’re not stuck in tech limbo.

Here are some steps you can try to resolve the issue:

Double-Check Connections:

• Ensure that all parts of the setup, especially the power cables and any connectors between the sections of the screen, are securely connected.
• Verify that the power source is functioning by trying a different outlet.

Power Button:

• Ensure that you are pressing the correct power button. All-in-One PCs sometimes have the power button located in less obvious places like the back or underside of the monitor.

Inspect the Power Adapter:

• Check the power adapter for any visible damage.
• If possible, test with another compatible power adapter.

Basic Troubleshooting:

• Disconnect all peripherals (such as external drives, printers, or additional monitors) from the PC to rule out any device conflicts.
• Press and hold the power button for about 15 seconds to drain any residual power, then try to turn it on again.

If these steps don’t resolve the issue, HP phone support team should be able to assist you further, perhaps providing repair services or a replacement if necessary.

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye

[annieb_in_ga]

Thanks for the suggestions. I did all of those things. I triple checked the power cords and plugged into  different plugs. I thought of trying a different power adapter but don't have one that will fit the port on the monitor.  

Ensureing  that all parts of the setup, especially the power cables and any connectors between the sections of the screen, are securely connected may be where the problem is.  There are no instructions on putting the 3 pieces of the computer (base, the rod that holds the monitor and the monitor) together.  While I am good with software my Hardware skills aren't as good. I tried everything else you mentioned. I finally was able to connect to a chat and got the number for tech support. I will be calling them but at this point I need to know how to disassemble the computer so that it can be packed up and returned. This is my 2nd HP all-in-one I have had problems with and do not wish to keep it. But I do appreciate your help.

[Hawks_Eye]

@annieb_in_ga 

Thanks for sharing all that—it’s clear you’ve been incredibly thorough and patient, and I can imagine how disappointing it must be to face this again with a second all-in-one. 😞 

If you have any more questions or need further assistance, please don't hesitate to ask. We're here to help! 

Thanks again for your confirmation, and we wish you an amazing day ahead! 😊

Regards, 

Hawks_Eye