Originally Posted by amorello
I see but MVF was already my sort of last choice probably because it is the most expensive of the four I've listed, well to say the truth I was waiting some more fight between Asrock Z77 OC Formula vs MSI Z77 MPower, and the gigabyte UP5 is starting to grow on me
One thing about MPower, every single Mpower board have to pass a "OC certified test:Source
The difference was that this mainboard underwent an additional test after all the quality controls have been successfully passed. This wasn’t just a common power-on test, but an intense 24-hour stress test of an overclocked system in the famous Prime95 utility, which generates heavy complex loads. This stress-test doesn’t just target the operation, but also confirms the board’s overclocking potential and allows marking it as “OC Certified”.
OC Performance means that all OC Certified tests are run at a 4.6GHz CPU speed, this simulates the high-end overclock range of today's 3rd Generation Intel Core CPUs. Stable Power is tested by running Prime95 for 24-hours in low airflow conditions. This ensures that the PWM is capable of supplying stable power to the CPU under extreme conditions.
BTW you still haven't mentioned where do you live, if you live in North America I would avoid ASUS because their RMA department have been dreadful lately.
The bad thing about Mpower is that you will not be able to OC with offset voltage, meaning that your voltage won't throttle when your CPU usage goes down.
It is my #2 recommendation behind UP5TH out of the the 4 boards you listed.Edited by sherlock - 1/19/13 at 3:35pm