gpu not deect

So I got my self in a weird situation. I just purchased a used GTX 570 (it works fine, tested it on seller's system) and found out I actually don't have the cable to connect it to my monitor. I've already ordered one, but it will take about a week or so to arrive and I need a more immediate...

I am a very low budget gamer and i am facing a problem that my new gpu is not detecting by bios as my keyboard numlock key doesn't work and i have tested that same gpu and psu on other pc and it worked fine. but not working with my new gpu. (tried updating bios from 2011 to 2014) 1.should I...