MSI has launched their users a new graphics card overclocking application. MSI is based on the RivaTuner afterburner, which is one of the best and most widely used graphics card overclocking software. Only limited work card, MSI, but the execution is at least free of charge. The program allows users to overclock the GPU shader and memory card and Lightning series can also adjust the voltage. In addition, you can also control temperature and fan speed and voltage and frequency.I want to know that how to unlock MSI Afterburner.