So I have been playing with my overclock and voltages and have been trying to do 8 hr Realbench testing. Usually when voltage is too low Realbench causes a bluescreen between 1 and 2 hours and the computer reboots. During my last 2 stability tests, at between 2 and 3 hours the screen shows Luxmark still running, yet the Log Output is frozen on Handbrake encoding and the Realbench main window is unresponsive. Is this a software issue or just a simple sign that my overclock is not stable yet? I never get the message "instabity detected" as other have mentioned, just some frozen tests. The rest of the computer continues to work and I can even force exit Realbench from the task manager.