ok, i just started to overclock my vid card. its an nvidia geforce fx5500 pci card. no, not pci-e, just pci. please, dont laugh. anyhow, the stock core frequency is 270mhz, and ive got it to 290 right now. the stock memory clock frequency is 400mhz, and i have it to 420. its running stable no problems. a few questions: how much more might i be able to do without frying the card and, is my card gonna last long now that its overclocked? how long might it last?. please reply asap. thank you very much!