Where do I plug this power LED cable in?

[snilloc]

I'm building my computer and for the life of me can't figure out where
the power LED cable is supposed to go in. On my motherboard, there is a
3-pin slot for a power LED cable, but that doesn't seem to be what I
have. It was fine plugging in the HDD, Power Switch, and Reset Switch
ones.

Here's the case:

http://tinyurl.com/2qjxyw

The cord I'm talking about is the one in the middle, towards the
bottom, that looks like all of the cords coming from the power supply
(a few centimeters below the newegg watermark).

Here's the motherboard:

http://tinyurl.com/2u3nj3

The LED slots are in the very bottom left corner (to the left of the
SATA connectors).

This is my first build so I feel like I'm just missing something that
is right in front of me, but it's hard to follow instructions if you
can't find what you're supposed to do. I hope this was clear enough.

 

[snilloc]

Wow, I can't believe I didn't realize what I was supposed to do. Just
plug in the freakin' power supply. All done .

 

[DaveW]

Strangely enough, the case's Power LED cable plugs into the 3 pin LED pins
on the motherboard where you noted them.