How much juice do you give the core to run it at 1525?? That's pretty high...
925mV on core. HWInfo64 reports 894-906mV fluctuating.
Ok that's not too bad actually. Will have a go at it and check power draw. I suspect it's not going to be worth it (I'm getting 1350h/s at 1428@905 core & 1140 mem.
Power draw seems to be 15-20w higher (from wall). Also I can't keep it sustained for a long time.