My all in one computer will not turn on

[John2493]

My all in one pc will not turn on. There is power going to the pc but it will not turn. I push the power button but nothing.

[Sneha_01]

Hi @John2493,

Welcome to HP Support Community.

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

If your all-in-one PC is not turning on despite showing that power is reaching the unit, there could be several potential causes. Here are detailed troubleshooting steps you can follow to diagnose and hopefully resolve the issue:

1. Check the Power Source and Connections

• Ensure the power cord is securely connected to both the wall outlet and the PC.
• Try plugging the power cord into a different outlet to rule out issues with the original outlet.
• Check for any visible damage to the power cord. If you have a spare power cord, try using that to see if the issue persists.
• Make sure the power button is not stuck or jammed. Press it firmly but gently.

2. Perform a Hard Reset

• Unplug the power cord from the PC.
• Press and hold the power button for 15-30 seconds to discharge any residual power.
• Plug the power cord back in and try turning on the PC.

3. Inspect for External Issues:

• Disconnect all external devices (keyboard, mouse, USB drives, etc.) from the PC.
• Try turning the PC on with only the power cable connected.

4. Check for Internal Issues

• If you’re comfortable opening the PC (and it’s out of warranty), check the internal power connections.
• Ensure that all internal cables and components are securely connected.
• If the PC has an accessible PSU, ensure that it is securely connected and not faulty. If you have a multimeter or PSU tester, you can use it to test the PSU.
• Look for any loose connections inside the PC. Reseat RAM modules and other internal components.

5. Check for Signs of Life

• Check if any lights on the PC (like power or status LEDs) are illuminated or blinking. This can provide clues about the issue.
• Listen for any sounds, such as fans spinning or hard drive noises. Lack of sound might indicate a power issue or a hardware failure.

6. Test with Minimal Configuration

• Remove all non-essential hardware, leaving only the motherboard, CPU, one stick of RAM, and power supply connected. Try turning the PC on.
• If you have more than one RAM module, test each one individually in different slots to rule out faulty RAM or a bad slot.

I hope this helps.

Take care and have a good day.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

Rachel571

HP Support