Okay, limitations I have found with 920 and M3A79-T Deluxe..

* Multiplier is locked (no suprise).
* NB multiplier is locket (no suprise again).
* Can't set higher VCORE then 1.500 in BIOS, this is with both 0602 and 0701 (this is a suprise).
* Can't change VCORE at all with AOD, the controller simply doesn't exist.
* ACC, while not working anyway, isn't visible in any BIOS version.