OpenHardwareMonitor.exe

Open Hardware Monitor

CPU Usage

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Publisher

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OpenHardwareMonitor.exe is the GUI and runner for Open Hardware Monitor. It reads sensor data from CPU, GPU, motherboard, and disks, showing temperatures, voltages, and fan speeds in real time. It uses minimal CPU and memory in normal use and can be closed or disabled from startup if desired.

Download Source

Always download from openhardwaremonitor.org to minimize risk of tampering or bundled unwanted software.

Hash Consistency

Compare the SHA256 hash of the downloaded OpenHardwareMonitor.exe with the hash published on the official site to detect tampering.

Signature Verification

Open Hardware Monitor's executable should be signed by the official publisher. Verify under Digital Signatures to confirm the signer and validity.

Security Recommendations

If you suspect tampering, run a full system malware scan and validate the executable's signature before running.

What is OpenHardwareMonitor.exe?

OpenHardwareMonitor.exe is the main executable of the Open Hardware Monitor project. It initializes sensor discovery, communicates with hardware sensors via supported interfaces, and renders the live readings in a compact, user-friendly interface. It is designed to be lightweight and portable.

OpenHardwareMonitor.exe enumerates hardware sensors through vendor interfaces and libraries, then polls and aggregates data from CPU, GPU, motherboard, and storage devices. It presents these values in real time and supports exporting or logging in a simple UI.

Is it Safe?

Is it a Virus?

Why is it Running?

Reasons it's running:

Thermal and cooling awareness: Keeps an up-to-date view of CPU/GPU temperatures and fan speeds to help prevent overheating and thermal throttling during heavy workloads.
Power and stability monitoring: Monitors core voltages and rail sensors to help detect abnormal power delivery that could affect system stability.
Real-time sensor feedback: Regular polling delivers near real-time readings during gaming, rendering, or stress testing, aiding diagnostics.
Broad hardware coverage: Supports a wide range of CPUs, GPUs, chipsets, and sensors, making it a versatile reference tool for many systems.
Low resource footprint: Designed to be lightweight, typically using a small amount of CPU time and memory, suitable for continuous monitoring.

Can I Disable or Remove It?

Common Problems

Common Causes & Solutions

: Ensure you are using the latest version of Open Hardware Monitor, run as Administrator if needed, and confirm that your hardware sensors are supported. Try restarting the app after a clean boot.
: Check for the latest release and update. Reduce refresh rate in the settings, or run the portable version with minimal background tasks. If the problem persists, re-install the latest build.
: Update GPU drivers, ensure the chosen OHM build supports your GPU family, and enable GPU sensor discovery in settings. Some GPUs require newer OHM versions for full support.
: Delete the OHM configuration in AppData (C:\Users\<User>\AppData\Local\Open Hardware Monitor) and re-launch. Reinstall the latest version if needed and run as admin once to initialize sensors.
: Verify the executable hash, ensure the correct hardware in the system, and update to a newer OHM release. Compare values against other trusted tools to verify accuracy.
: Check for a stuck update loop, disable any conflicting background utilities, and ensure OHM is not forced into compatibility mode. Restart OHM after saving settings.

Frequently Asked Questions

Is Open Hardware Monitor safe to run on Windows?

Yes. Open Hardware Monitor is an open-source utility widely used to read sensor data from supported hardware. Download it from the official site and verify the signature and hash before installing.

How do I install Open Hardware Monitor?

Download the package from openhardwaremonitor.org, extract to a folder, and run OpenHardwareMonitor.exe. To run portably, you can launch the executable directly without an installer.

Does Open Hardware Monitor show GPU temperatures and fans?

Yes, when supported by your GPU and drivers. OHM detects CPU, GPU, motherboard, and some storage sensors, displaying temperatures, voltages, and fan speeds.

How do I disable Open Hardware Monitor from starting automatically?

Open Task Manager, go to the Startup tab, locate Open Hardware Monitor, and disable it. You can also remove any startup shortcuts or uninstall the software entirely.

Why does Open Hardware Monitor keep running after I close it?

If it was configured to run at startup or set to stay in background, it may continue. Disable startup entries or close the GUI to stop the polling thread.

What hardware sensors are supported by Open Hardware Monitor?

OHM supports a broad range of CPUs, GPUs, and motherboards from many vendors, including common brands like Intel, AMD, NVIDIA, and various chipsets, with sensor types for temperature, voltage, current, and fan speeds.

Related Processes

Main GUI and sensor polling component of Open Hardware Monitor

Shared library used by the GUI to access and parse sensor data

Another hardware monitoring tool often used as a reference or alternative