can't find the boot device (hard disk 3F0)

[S1211]

When I turn on my desktop computer, I get the message that it can't find the boot device (hard disk 3F0). In the System diagnostics, when I press F2 and do quick hard drive check and

When the diagnostic finishes, the following error appears:  

Testing Drive:1

SMART Check: PASSED

Short DST: FAILED

Failure ID: UOF6WX-9AVCMW-XD7W2K-6OQHO3

Product ID: 3FU78AV

Hard disk 1

What does it mean?

Thank you in advance.

[Max3Aj]

@S1211, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
The error message you're seeing "Hard Disk 3F0 – Boot Device Not Found" along with the Failure ID: UOF6WX-9AVCMW-XD7W2K-6OQHO3 and Short DST: FAILED result, indicates that your hard drive has likely failed or is failing.

Here's what each part means:

• SMART Check: PASSED: The drive's built-in monitoring system didn't detect imminent failure.
• Short DST (Drive Self Test): FAILED: This test checks the physical integrity of the drive. A failure here usually means the drive is damaged or corrupted.
• Failure ID: This is a unique code generated by HP diagnostics. It can be used by HP Support to identify the specific issue with your hardware.
• Hard Disk 3F0: This BIOS error means the system cannot detect a bootable hard drive — either because the drive is not connected properly, has failed, or the boot configuration is incorrect

What You Can Do:

Basic Troubleshooting

Check BIOS Settings:

• Restart your PC and press F10 repeatedly to enter BIOS.
• Ensure the hard drive is listed under boot devices.
• If not, the drive may be disconnected or dead.

Reset BIOS to Defaults:

• In BIOS, press F9 to load default settings.
• Press F10 to save and exit.

Reseat the Hard Drive (if you're comfortable opening the case):

• Power off the PC and unplug it.
• Open the case and disconnect/reconnect the hard drive cables.
• Restart and check if the drive is detected.

HP PCs - Hard disk 3F0 boot device not found error | HP® Support
 

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Select "Yes" on the bottom left to say “Thanks” for helping! 

Max3Aj

HP Support