Just overclocked your CPU or added new hardware, and want to know if the PC stays stable under full load? The free StressMyPC puts heavy load on the processor, graphics chip or hard drive. Separate controls start the CPU, GPU, and drive tests, and multiple tests can run together.
Which parts of the PC can StressMyPC test?
The three stress controls target different components: Paint-Stress loads the graphics processor, Aggressive CPU-Stress puts work on the processor, and HD-Stress loads the hard drive. This lets you apply a load to one component or combine tests to put broader pressure on the system.
A system that runs normally during light tasks may behave differently under a sustained processor or graphics load. StressMyPC provides the load; observe the PC’s behavior while the test is running.
How do you start a stress test?
Choose the control for the component you want to exercise. The CPU, graphics, and hard-drive tests have their own buttons at the top of the program window, so you can start with a single component and add another test if needed.
- Use Paint-Stress to apply load to the GPU.
- Use Aggressive CPU-Stress to load the processor.
- Use HD-Stress to put the hard drive under load.
When should you run StressMyPC?
A stress run can check system stability after a CPU overclock or hardware change, or help investigate behavior that appears only under heavier workloads. On a laptop, loading the hardware can also provide a way to test battery endurance under demanding use.
Keep in mind that heavy loads can expose instability: the developer warns that unstable or overclocked systems may crash during testing. Stop the test if the machine becomes unstable.
Does StressMyPC need to be installed?
StressMyPC is portable and can run without installation.
Pros
- Separate CPU, graphics, and hard-drive stress controls
- Supports running multiple hardware tests at once
- Portable utility that does not require installation
System requirements: Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 · 32-bit and 64-bit
Can StressMyPC test the CPU and GPU?
Yes. Aggressive CPU-Stress loads the processor, while Paint-Stress applies load to the graphics hardware.
Can I stress-test the hard drive?
Yes. Start HD-Stress to load the hard drive.
Can I run more than one test at a time?
Yes. StressMyPC supports running multiple component tests together.