hi, I've decided to put an r9 280x into one of my Mac pros. I was wondering if anyone knew which non-reference cards work (or if they all do) And also which power cables I need? I say a video that stated you can accidentally buy the wrong ones because of the wiring, and also the wrong length. I know it's 6 to 6 pin and 8 to 6 pin that you need. I found these two, but I don't know weather they'd be right: http://www.ebay.co.uk/itm/8Pin-to-M...148942?hash=item280afe978e:g:DS0AAOSw9mFWMmS7 http://www.ebay.co.uk/itm/Mini-PCIe...560513?hash=item210861fe01:g:1fEAAOSwHaBWk4Ym I wouldn't be flashing it because I don't need a boot screen. Thanks!