OCCT 16.1.11.99 (x64) Free – Hardware Stability Check, PSU Testing

What is OCCT?

OCCT (OverClock Checking Tool) This is a program used to test the stability of computer hardware, particularly the central processing unit (CPU), graphics processing unit (GPU), memory (RAM), and power supply (Power Supply – PSU). This program is designed to help users verify that these devices operate correctly under heavy workloads (stress test), which is particularly useful for those who customize systems or overclock to enhance performance.

OCCT features an easy-to-use interface and comes with real-time graph displays, such as temperature, voltage, fan speed, and system power consumption. Additionally, the program supports detailed test result recording, allowing users to analyze historical data. The key feature of OCCT is its ability to perform customizable tests, such as selecting the type of workload, test duration, and temperature limits that will automatically halt the test.

With comprehensive features and regular updates OCCT is a popular tool among computer builders, overclockers, and those looking to diagnose hardware issues such as system restarts, abnormal high temperatures, or system instability. It is considered one of the most effective programs for diagnosing and ensuring high-level computer safety.

Qualifications:

OCCT consists of 6 different tests: OCCT and Linpack for your CPU, Memory for testing your system's RAM, 3D and VRAM for your graphics card, and Power to focus on your power supply. You can also monitor your PC while using external apps to generate reports using specific monitoring tests!

The program will monitor your computer's readings and display real-time graphs showing temperature, voltage, fan speed, frequency, component usage, and power consumption during your tests. We are using excellent tools from HwInfo!

Built-in protection for your computer
We can increase the maximum temperature limit. If the component reaches this critical temperature during testing, it will automatically shut down immediately.

Report
Testing: At the end of the test, you will be able to save a full graphical report of what occurred during the test for diagnostic purposes.

What's New

File Information

  • Operating System: Windows 11 / Windows 10 / 8.1 / 7 (x64)
  • Developer: www.ocbase.com
  • License: Freeware
  • Language: English
  • Size: 288 MB
  • File type: *.exe
  • Password: mawto
  • Installation Method: Available
  • Updated on: 11/6/2026
  • Required Reading: How to Download