Read the official MSI Forum and weep! MSI downclocks gtx 570 TFII OC, due to VRM problems and too many RMA'ed cards. Official overclock is now 750 instead of 786.
And I just ordered one this week! Guess I'll be swapping that one for a gigabyte gtx570
OC windforce 3. I'm not paying for a standard overclock of 750 if I can get better elsewhere.
greetz