HP Omen 40L

Yura10 · ‎12-02-2024

Dear Community Team,

I am experiencing a recurring issue with my HP OMEN 40L desktop, and I would appreciate your assistance in diagnosing and resolving the problem.

Issue Description

The computer frequently encounters a black screen, after which the fans start running at an unusually high speed.
When this happens, I have no choice but to manually power off the system.

Observations

The processor temperature seems abnormally high, ranging between 60°C and 70°C, even when the CPU utilization is around 10%.
All drivers, BIOS, and Windows updates have been installed, but the issue persists.

Steps Already Taken

Updated all drivers, including GPU and chipset drivers.
Updated the BIOS to the latest version available.
Installed all Windows updates.

Despite these efforts, the issue remains unresolved ( The issue occurs also when the computer is idle or resting, with no intensive tasks running).

Could you please guide me on how to proceed? If additional diagnostics are required, let me know the steps to follow.

Thank you in advance for your assistance.

Best regards,

NonSequitur777 · ‎01-26-2025

@Yura10,

Welcome to our HP Community forum!

Thank you for reaching out! It seems like your OMEN 40L desktop is encountering an issue where the system is experiencing high CPU temperatures and a black screen, accompanied by the fans running at high speed. Let’s try to diagnose and resolve this step-by-step:

Step 1: Check for Overheating or Dust Build-Up:

High CPU temperatures can often be a sign of inadequate cooling. Here's what you can do:

Turn off the system and unplug it from the power source.
Open the case and check if there is any dust build-up around the CPU cooler and fans. Dust can block airflow and cause overheating.
If necessary, use compressed ("canned') air to carefully remove the dust from the system.

If you're comfortable doing so, also check whether the thermal paste on your CPU needs reapplication (this is more advanced, so only do it if you’re experienced with PC maintenance). Use a quality thermal paste, such as Arctic MX-4.

Step 2: Check System’s Cooling Settings:

The issue might be related to the cooling settings in the BIOS or Windows.

Enter the BIOS/UEFI by pressing Esc, then F10 during boot.
Look for any cooling or fan control options and ensure they are set to automatic.
Make sure that the CPU fan is running at the correct speed and is not malfunctioning.

Step 3: Monitor Temperatures Using Software:

Use a program like HWMonitor or Core Temp to track CPU temperatures in real-time. These tools give detailed information about temperatures, fan speeds, and system load.

Check if temperatures remain high even at low CPU utilization (like 10%) or if they spike intermittently.
If the temperatures are still unusually high, it could indicate a malfunctioning cooler or thermal paste issue.

Step 4: Test with Power Supply Unit (PSU) Diagnostics:

If the PSU is not providing stable power, it can cause random black screens and high fan speeds.

Use the HP PC Hardware Diagnostics tool to run a PSU test.
If the PSU is the issue, it may need to be replaced.

To access diagnostics, press Esc during startup and then F2 to run the system diagnostics.

Step 5: Update or Rollback Drivers:

Even though you mentioned updating all drivers, there could still be a conflict with specific ones.

Rollback GPU drivers to a previous stable version if the issue started after a recent driver update.
If possible, try running the system with only essential drivers (disable any third-party software or background processes that could cause conflicts).

Step 6: Check Event Viewer for Errors:

The Event Viewer in Windows might provide more information about what’s causing the black screen.

Open Event Viewer (search for it in the Start menu).
Check under Windows Logs > System for any critical errors or warnings related to hardware or drivers that coincide with the black screen events.

Step 7: Check for Faulty Hardware:

If none of the above steps resolve the issue, it may be a hardware failure. Given the symptoms, it could be either the CPU cooler, motherboard, or PSU malfunctioning.

At this point, it would be a good idea to contact HP Support for further diagnostics, especially if your system is still under warranty.

Additional Notes for Users in the UK:

Since you are located in the UK, you can reach out to HP UK Support directly for any warranty-related issues or assistance with hardware replacement.

Let us know how it goes, and feel free to provide any additional details if the issue persists!

Kind Regards,

NonSequitur777