System Tools → AIDA64 Extreme / Engineer Edition 5.75.3963 Beta
AIDA64 offers you a tool for this task, called System Stability Test. It uses the AIDA64 Benchmark Module, which is heavily optimized for all 32-bit and 64-bit x86 processors. Thanks to this it can put an excessive load on the system, driving all parts of the CPU to the maximum, yielding in very high levels of power usage and heat dissipation. With the System Stability Test you can diagnose the stability and reliability of your PC.