Load beeping an alarms ringing when trying to start computer

[Brooke541]

Hello. I have been trying to start my HP pavilion all in one desktop computer. But what is happening is there’s a very loud alarm and beeping and the screen goes black. Nothing can stop us from beeping even pushing control alt delete, which is the only thing I know how to do ha ha so I just unplug it to get the beeping to stop. I have no idea why this is happening. Any ideas? Grateful for any help thanks so much.

[A_Gayathri]

Hi @Brooke541,

Welcome to The HP Support Community.  

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

I understand you are facing an issue with your HP Pavilion All-in-One is experiencing a hardware issue, and the loud beeping/alarm is a BIOS beep code, which indicates a problem detected during the Power-On Self Test (POST). The black screen suggests the system is unable to boot up correctly.

May I know

1. Since when are you facing this issue

2. Have you made any changes on your PC post that this issue raised 

3. May I know if you have observed any error code lights blinking Or Caps lock lights blinking
 

Here’s how you can troubleshoot this issue:
 

1. Check the Beep Pattern

The pattern and number of beeps can tell you what specific hardware issue your system is facing:

• Continuous beeping: Typically indicates memory or hardware failure.
• Short beeps followed by a pause: Could indicate a graphics card, RAM, or other component issue.

You can try to count the beeps and compare it with the HP BIOS beep codes. Let me know if you notice any specific pattern in the beeps.

2. Check for Loose or Damaged Hardware

• RAM: Faulty or loose RAM sticks can trigger these alarms. If you’re comfortable, open the back panel and reseat (remove and then reinstall) the RAM.
• Graphics Card/Components: Make sure other internal components are securely connected.

3. Disconnect External Devices

Unplug all external devices (e.g., USB devices, printers, external hard drives) and try restarting. Sometimes a faulty peripheral can cause issues.

4. Clear CMOS/BIOS Reset

Resetting the BIOS/CMOS can help if the issue is related to BIOS corruption. This can usually be done by removing the battery on the motherboard for a few minutes or by using a BIOS reset jumper. Check your user manual for the correct steps.

5. Test with Minimum Configuration

If possible, start the system with only essential components (e.g., one RAM stick, no external devices) to see if the problem persists. This helps to isolate the faulty hardware.
 

6. Power Supply Issues

A faulty power supply can cause alarms and prevent proper booting. Check if the power cable is secure and if the power supply is functioning correctly.
 

Refer to this document:  HP Pavilion All-in-One - 27-a240se User manual

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.