I have GTX 670 FTW Signature 2 card and the most I can overclock it is by 50Mhz. I've tried everything (maxing voltage, maxing power target etc.), but that is the most I can get out of the card. I've seen people offsetting GPU clock by 150Mhz easily. The whole reason I paid extra for signature 2 edition was because it was supposed to have better cooling and better overclocks. So, my question is, will updating to new BIOS help regarding this matter? Thanks.