Want to add another HDD

Hi, I'm wanting to add another HDD to my system, but I'm not 100% sure it supports it, its an HP computer and this is what the website says about the SATA connectors:

When I open the PC up I see that both the black and white are already connected to the single harddrive, so does it only support one? I can't seem to get a straight answer out of HP Support, they keep telling me about other computers I can upgrade too >.>

This is a link to the information about the PC...I've already upgraded a few things on it like PSU/Graphics/Sound/Ram

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01237548&lc=en&cc=us&dlc=en&product=3577836#

Thanks,

 

There should be two connectors to each SATA drive.
One supplies the power, one supplies the DATA so you are probably confusing these.

The power cables should come from a bundle that come from the power supply, which is a metal clad box in the back corner of the pc.

The data cables come directly form the motherboard. Usually both SATA connectors are side by side so look at the motherboard and see if you can locate the second one.

Can you post a digital picture?

 

Here is the stock photo of the MB... http://h10025.www1.hp.com/ewfrf-JAVA/Doc/images/c01237554.jpg

I don't have a camera to post it connected, but theres the power from the PSU going to it, but then theres 2 other cords that connects to the motherboard, kind of hard to explain. I'll acutally try to borrow a friends camera and see if i can get one posted

 

This link should help, their pics are quite good.

http://www.peachpit.com/articles/article.aspx?p=98835

Here is a part of your board.