There's a missing metal piece, please tell me this doesn't mean I have to return it..
Maybe this will help.
http://pcsupport.about.com/od/insidethepc/a/atx-pinout-24-pin-12v-psu.htm
I just had a quick look at mine. It is also missing that pin.
Nothing to worry about.
Plug 'n' Play man.
Thanks tons for actually checking dude! I was assuming it was fine, but ya' know something like that you can never be too careful. Didn't wanna fry my new gpu!
You mean fry your motherboard?
Anyways not a problem dude. And you're right you can never be too careful.
If in doubt, check it out I say.
That missing pin is for the -5v used by older computers, but now modern motherboards have no use for the pin hence the omission.