the msi 785 board does have unlock core but what about phenom ii x2 550 if i get lucky i cud possibly unlock the rest two cores and make it a quad core........??
about 75% of the 445s unlock a 4th core. about 50% of 555s unlock a 3rd core. Of that 50%, only about a quarter unlock a 4th. (so about a 1-in-8 chance of unlocking a 4th core..)
Its possible, but your odds are a lot better of getting a 4th core with the X3 than the X2.