Group, I am having problems identifying reference PCB vs non reference PCB cards. I am looking into buying a gtx 670 video card and intend on w/c it in the future. in the meantime I will be buying a backplate for it so it can look more appealing. As I have found out no documentation is put out on if card is a reference pcb design and there are limited products for non-reference w/c blocks and backplates. evga appears to be the vender I am favoring. FTW vs stock? but don't know what reference full length pcb vs stock reference pcb means in regards to dimension wise please assist this nubie? documentation on product is sought after rather than someone just telling me it is so. I have been burned on trusting and too impatience to call every vendor. I was also told as far as evga products go if the pci power pins are at the 2/3 down the card it is a reference card. true or what?