Ok so i plugged in a new GRAPHICS card to my computer. I did my research and the graphics card was compatible as told by a computer expert. Now I plugged it in and it went in fine but what I want to know is if the 6 pin cord that came with it is required. My computer's power supply doesn't have a 6 pin connector coming out of it to plug into the graphics card(not that i could FIND anyway). What I want to know is whether or not i even need the cord and if i do need it then how do i install it?

Here is my computer with the specs:
http://h10010.www1.hp.com/wwpc/ca/en/ho/WF06b/12454-12454-3329740-64546-64546-5080764-5110020.html?dnr=1

and this is the graphics card i installed:
http://www.amazon.com/Sapphire-DL-DVI-I-SL-DVI-D-PCI-Express-100354OC-2L/dp/B00A2J4ROE/ref=sr_1_1?s=electronics&ie=UTF8&qid=1371187758&sr=1-1&keywords=sapphire+7870Yes, the 6 pin connector is required for the card to work, your system will not pass POST without it so it will just sit on a black screen doing nothing. Your power supply is more than likely not powerful enough to support the 7870, but have a look on the side of the unit and it will GIVE you the rated total wattage and wattage per line (12V, 5V etc). If you post that here, we can TELL you if it might be safe to use an adapter.
However, HP and other OEMs tend to specify their power SUPPLIES to work with the hardware supplied - obviously, if a 250W PSU is cheaper than a 500W, and their system draws 200W, there's no point them supplying a 500W PSU because it would just cost more.