MSI, the most popular overclocking brand is excited to introduce an all-new standard for overclocking stability. MSI's OC Certified standard is the new baseline for overclocking mainboards. the new MSI Z77 MPOWER, which is OC Certified, is submitted to a Military Class stress-test for overclocking. Where other motherboard manufacturers only test for a limited duration, MSI Z77 MPOWER is submitted to a 24 hour OC stress-test. Only mainboards surviving 24 hours of Prime95 while heavily overclocked. The conditions of the OC Certified test are rigorous high temperature, no airflow testing.