Loud Beeps sounds like morse code

[algot1901]

Does this Morse code sound and repeat twice? I then get a DOS screen, but hard to see, and it flashes for a moment. All I have done is to shut down the computer using the power button and unplugged the chord from the wall and set the computer on the floor and this morning when I hooked up the computer the beeping started HELP

[Max3Aj]

@algot1901, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 

The loud beeping you're hearing from your HP desktop, especially if it sounds like Morse code and occurs during startup is most likely a BIOS beep code. These beeps are a way for the motherboard to communicate hardware issues when the system can't boot properly. Here's how we can troubleshoot this:

Step 1: Identify the Beep Pattern

HP BIOS beep codes vary by model and BIOS version,

Can you describe the pattern? For example:

• How many beeps?
• Are they short or long?
• Do they repeat in a cycle?

Step 2: What You Described

• You shut down using the power button (forced shutdown).
• You unplugged the power cord.
• After reconnecting, the PC beeps and briefly shows a DOS-like screen.

This suggests a hardware initialization failure, possibly due to:

• Loose RAM or GPU from moving the PC.
• CMOS battery issue (especially if the PC is older).
• Corrupted BIOS settings from an improper shutdown.

Step 3: Try These Fixes

Power Reset:

• Unplug the power cord.
• Hold the power button for 15 seconds.
• Plug it back in and try to boot.

Check Internal Components:

• Open the case (if you're comfortable).
• Reseat the RAM sticks and GPU (remove and reinsert).
• Check all power cables inside.

Clear CMOS:

• Unplug the PC.
• Remove the CMOS battery (a coin-sized battery on the motherboard) for 5 minutes.
• Reinsert it and try booting again.

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