Hey Kid hope everything is fine Well the reason why u cant reach the theorical 384MB of sheared memory is because you are using XP
well Xp is the best choise for gaming... believe me. keep it. the sad part is that there is no MD for a x3100 running under XP, i planned to make one but Intel sued me for copyrights, and i cant release more md for now, others can, but if they want to face a 30.000 to 300.000 USD lawsuit go ahead, but in other place not in the 9xxSsf. try making a dual boot, im not pretty sure about the performance of a 965 with XP, but in the case of the 945 XP is much better, the reason why people uses WIN7 is becuase of the game compatibility... and performance increase in some specific games -- INTEL 9xx SOLDIERS SANS FRONTIERS
