Hey i oc'ed a GF2 for a friend of mine and as i did so, the frame rate he was getting actually went down. i've heard u need to stay in certain accepted ratios. can someone please tell me the settings to up the core speed and the mem speed at?
Are you using powerstrip? Some beta versions of PS in conjuctions with certain BIOS has the problem of the gauge being reversed, where moving it up would actually underclock the card.
Try enabling coolbits or use NVMax to overclock with the built in overclocker.
There are no specific ratios, basically overclock the memory as much as you can. OCing the core makes almost no difference on a GF2 and running that higher just creates more heat.