Dunjon what vid card do you have? with geforce2 cards "MX particularily" because of the memory bandwidth your better off to O/C the memory than the core, I have a Hercules geforce2 Ti stock is 250/400 and I found the core works best O/C to 260 or 270 but the ddr memory can go as high as 500 and run stable , although I run it at 470 as not to stress it too much. Score on 3dmark 2001se at 270/480 was 5501 which is pretty damn good for this card , havent run 3dmark at memory 500 yet🙂