I hate PCs (and hardware in general)

[drwex]

Fail #2: the second video card doesn't have the same power connector as my PC, and as the old video card.

I'm going to take it as a given that there's no way to adapt the one to the other. I'm also sure that if I was sufficiently practiced in the proper arcana I could've known this before ordering the card.

But now I'm stuck trying to figure out how I can possibly guess what kind of power plug it has before I order yet a THIRD card.