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Rhonmer
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Black , blank screen is all I have when turning on the power supply of my desktop computer.

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Hp pavillon all-in-one
Microsoft Windows 8 (64-bit)
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Jeet_singh
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Hi @Rhonmer,

 

Thank you for showing your interest in HP Support Forums. It is a great place to find the help you need, from other users, HP experts, and other support personnel. 

As I understand the computer is powering on, however, doesn't have a display on the screen anymore,

Don't worry as I have a few steps to help you get through this concern,

 

Please attempt the below steps:

 

Performing a hard reset to resolve a blank screen issue

Completely resetting the computer can resolve many issues that cause a blank screen. Follow these steps to perform a hard reset:

  1. Turn off the computer.

  2. Disconnect all peripheral devices and remove all USB devices and media cards.

  3. Disconnect the AC power adapter.

  4. Press and hold the power button for at least 15 seconds.

  5. Reconnect the AC power adapter.

  6. Turn on the computer.

    If the blank screen issue is resolved, you are done.

    If the screen is still blank, continue with the next step to listen for computer beeps and look at the lights.

Attempt a Bios Recovery

 

If the above steps work and the display turns on: Perform a hardware test to be on a safer side.

 

If the steps didn't work, use the below links for further assistance: Computer Starts but Monitor/Screen Remains Blank : Click here

 

HP and Compaq All-in-One and HP TouchSmart Desktop PCs - Screen is Blank after Starting the Computer: Click here

 

Feel free to post your query for any other assistance as well,

It's been a pleasure interacting with your and I hope you have a good day ahead.

If you wish to show appreciation for my efforts,mark my post as Accepted Solution.

And click on the Purple Thumbs up icon at the bottom of my comment.

Regards,

 

Jeet_Singh
I am an HP Employee

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