Jackr987 :
Im, looking to buy either the 7790 or 7850 and i believe I need a six pin connector but have no idea how to check or what to look for in my case. What should I be looking for? And if i don't have one can I just buy one for the graphics card?
Thanks.
My PC - http://www.freshtechsolutions.co.uk/mars-b-amd-fx-quad-core-4-3ghz-windows-7-gaming-pc-1tb-8gb-ddr3-ati-6670-2gb.html
Unfortunately your link doesn't tell us what type of PSU you have other than that it is 500W. I looked up some images of your type of graphics card and I couldn't find any that required a 6-pin connection. Without actually opening your computer and looking it might be hard to say for sure whether or not your PSU has the required plug. If you do decide to take a look, this is what you're looking for:
http://techreport.com/r.x/psus-0907/pcie-connectors.jpg A power connection end that looks like either of those should get the job done. You can also buy an adapter that will look something like this:
http://virtuapin.net/images/adapter-2x-molex-6pin.jpg However, I do believe most graphics card manufacturers prefer that you not use them, eventhough they sometimes include them in the box with their card. Go figure. Anywho, either the plug directly on your PSU or one of those adapters should get you rollin.