OCCT 5.5.3 (64-bit)
OCCT (stands for "OverClock Checking Tool) is a CPU stability testing program.
Its features :
3 different test types
CPU = no RAM tested, alot of heat generated on the CPU, errors are usually CPU-centered
RAM = Maximum error detection, tests the whole chain CPU-Chipset-Memory
Mix = CPU and RAM alternated
3 tests modes
Auto = 1h long Mix test
Custom (Infinite) = Infinite loop of the test type of your choice
Custom (fixed) = A test of the type of your choice, and of a duration of your choice
Integrated monitoring and System information thanks to CPU-Z and HWmonitor engine
External Monitoring Program support through plugins (Everest, Speedfan, and many more)
Graph output showing temperatures and voltages of your computer.