-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Gaming
- Gaming Desktops
- Computer won't turn on

Create an account on the HP Community to personalize your profile and ask a question
08-02-2024 08:36 PM
My Omen 40L won't turn on after 6 months. It had locked up and would not accept any inputs. I held the power button until it turned off. Now it won't turn on again. My guess is a power supply failure. Is there a fix that I'm missing before I submit a warranty claim?
08-06-2024 06:38 AM
Hi @aggieroadmiles,
Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
It sounds like a power supply issue could indeed be the culprit. Here are some steps to diagnose and potentially resolve the problem.
Basic Checks
Power Source:
- Ensure the power outlet is functional by plugging in another device.
- Try a different power cable to rule out a faulty cable.
Reset:
- Disconnect the power cable from the PC.
- Press and hold the power button for about 15-30 seconds to drain any residual power.
- Reconnect the power cable and try to power on the PC again.
Power Supply Unit (PSU) Check
PSU Switch:
- Make sure the switch on the back of the PSU is in the 'On' position.
PSU Test:
- If you have access to a multimeter, you can test the PSU output. Alternatively, you can use a PSU tester if you have one.
- Check the internal cables connecting the PSU to the motherboard to ensure they are securely connected.
Internal Component Check
Reseat Components:
- Open the case and carefully reseat the RAM, GPU, and any other components to ensure they are securely connected.
- Check all power connections to the motherboard and components.
Visual Inspection:
- Look for any obvious signs of damage or burnt components on the motherboard, PSU, and other parts.
Bypass and Test
- Breadboarding:
- Disconnect all peripherals and non-essential components (like additional hard drives, USB devices, etc.).
- Try to power on the PC with just the essential components connected (CPU, one stick of RAM, and the GPU if there's no onboard graphics).
Advanced Steps
- Replace the PSU:
- If possible, try using a known working PSU to see if the PC powers on. This will confirm if the PSU is the issue.
- Ensure the replacement PSU meets the power requirements for your Omen 40L.
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. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
Alden4
HP Support
HP Support Community Moderator