I recently purchased an X3 and after being disappointed in the fact that it's a CADAC and thus not unlockable to an X4, I decided to overclock it. I managed to get it up to 3307MHz, but I've hit a wall. I can't get it stable, even with voltage increases, past this speed. In fact, I've actually had to dial the voltage down to 1.4V from 1.425V stock to produce stability at this speed. I've tried lowering the HT/NB, RAM speeds, and upping voltages, but nothing seems to work.

Am I missing something here?

Idle temps: 21C
Load temps: 31C

Specs:

AMD Athlon II X3 425@3307MHz
Gigabyte 790XTA-UD4
4GB Geil DDR3 1333
OCZ 700W PSU 12V*4@18A
Zotac Geforce 9800GT@650,1625,1000
Corsair H50 Liquid Cooling