I want to unlock my zotac gtx 465 graphics card. It has 10 memory and unlocking is possibble. I downloaded gtx470 bios from in here. http://www.mvktech.net/component/option,com_remository/Itemid,26/func,fileinfo/id,3227/ I updated its bios successfully. But Still My operating system knows my graphics card as gtx465. I am using Windows 8. What is the reason of this ?