well i don't have advice for that card, but normally if you push it just a couple mhz at a time, it'll become unstable and you'll know to back down, because it might get damage if you keep going higher after it is unstable. Run intense video programs or games test stability.(or 3dmarks, might as well get bench at same time right?)
Anyone else noticed this ,I can run 3d mark at 233/533 @150 fsb ,and I can run any game I have at higher clocks with no problem ,but if I go higher then that and try to bench ,3d mark always locks ,I think 3dmark2k1 is a very good stress test.
well, every card is different, your card may/may not be pushed futher than ours. you just have to keep pushing it, keep running graphic stress test, and watch your temp carefully. if you system starts to freeze or become unstable, then you know whats your card limit is with the cooling you have. from that you can upgrade your cooling gear, and push more. this is how we all do it.