tinkered with the chip all week and had no luck, decided to sell the chip + board to family member.
got new 920, now clocks to 4ghz with only 1.2vcore load
and with temps of 73 max.
One tip which will probably get me in trouble: dont buy OEM as my chip had marks on the surface which at the time did not concern me. Have a suspicious feeling it had been tested by OCUK in their bundles and deemed a poor chip.