Omen 45L powers on but no signal to monitor keyboard mouse

[Gregg-Terrell]

My pc turns on/lights up and fans run but no signal to the monitors keyboard or mouse.

Product number 3K1G6AV

[Raj_05]

Hi @Gregg-Terrell,

Welcome to HP Support Community.  

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

When your HP Omen 45L powers on but you're not getting any signal to your monitor and your keyboard and mouse aren't working, there could be several potential causes for this issue. You'll need to troubleshoot step by step to identify the root cause and hopefully resolve the problem. Here's a list of steps to follow.

Check Power Supply:

• Ensure that your computer is receiving power. Verify that the power cables are securely connected to both the power outlet and the computer's power supply.

Monitor Connection:

• Confirm that your monitor is connected properly to your computer. Check both ends of the video cable (e.g., HDMI, DisplayPort, VGA) to make sure they are securely plugged in.

Monitor Source/Input:

• Make sure your monitor is set to the correct input source. Use the monitor's on-screen menu to select the input source corresponding to the cable you're using.

Keyboard and Mouse Connection:

• Ensure that your keyboard and mouse are connected to the correct USB ports on your computer. Try connecting them to different USB ports to rule out any potential issues with specific ports.

Check for Loose Components:

• Open the computer case and check for any loose connections or components, including RAM, graphics card, and power cables. Reseat them if necessary.

GPU (Graphics Card) Issues:

• If you have a dedicated graphics card, ensure that it is properly seated in its PCIe slot. If you have an integrated GPU, make sure the display cable is connected to the appropriate port on your motherboard.

RAM Issues:

• If possible, try reseating or replacing the RAM sticks. Faulty RAM can sometimes cause a lack of video output.

BIOS/UEFI Settings:

• Access the BIOS/UEFI settings by pressing the appropriate key during startup (usually Del, F2, or F12). Check the display settings to ensure that the correct video output source (integrated or dedicated GPU) is selected.

Reset BIOS/UEFI:

• If you're comfortable with it, you can try resetting the BIOS/UEFI settings to their defaults. This can sometimes resolve compatibility issues.

Graphics Card Driver Update:

• If you can access the BIOS/UEFI settings, ensure that your graphics card is recognized. If not, you may need to update or reinstall your graphics card drivers.

Test with Minimal Hardware:

• Disconnect all unnecessary peripherals and expansion cards. Try booting with just the essentials (CPU, one stick of RAM, GPU) to eliminate potential hardware conflicts.

Check for Beep Codes or Error LEDs:

• Some motherboards provide error codes through beep sequences or LED indicators. Refer to your motherboard's manual to interpret these codes.

Power Supply Check:

• A failing power supply can lead to inconsistent power delivery. If possible, try testing with a different power supply to rule out this possibility.

Monitor and Cable Test:

• Try connecting your computer to a different monitor and using a different video cable to see if the issue persists. This can help determine if the problem lies with the monitor or cable.

External Factors:

• Ensure that there are no external factors causing interference, such as power surges or electrical issues.

Hardware Testing:

• If you have spare components (e.g., another GPU, RAM sticks), try swapping them to see if the issue is resolved.

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